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Posted to commits@impala.apache.org by mi...@apache.org on 2018/05/01 21:30:13 UTC

[13/15] impala git commit: [DOCS] Add Impala docs from branch 2.x

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_compute_stats_min_sample_size.html
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+<!DOCTYPE html
+  SYSTEM "about:legacy-compat">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="compute_stats_sample_min_sample_size"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>COMPUTE_STATS_MIN_SAMPLE_SIZE Query Option</title></head><body id="compute_stats_sample_min_sample_size"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+  <h1 class="title topictitle1" id="ariaid-title1">COMPUTE_STATS_MIN_SAMPLE_SIZE Query Option</h1>
+
+
+  <div class="body conbody">
+    <p class="p">The <code class="ph codeph">COMPUTE_STATS_MIN_SAMPLE_SIZE</code> query option specifies
+      the minimum number of bytes that will be scanned in <code class="ph codeph">COMPUTE STATS
+        TABLESAMPLE</code>, regardless of the user-supplied sampling percent.
+      This query option prevents sampling for very small tables where accurate
+      stats can be obtained cheaply without sampling because the minimum sample
+      size is required to get meaningful stats.</p>
+    <p class="p">
+        <strong class="ph b">Type:</strong> integer
+      </p>
+    <p class="p"><strong class="ph b">Default:</strong> 1GB</p>
+    <p class="p"><strong class="ph b">Added in</strong>: <span class="keyword">Impala 2.12</span></p>
+    <p class="p">
+        <strong class="ph b">Usage notes:</strong>
+      </p>
+  </div>
+<nav role="navigation" class="related-links"><div class="familylinks"><div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/impala_query_options.html">Query Options for the SET Statement</a></div></div></nav></article></main></body></html>

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_concepts.html
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+++ b/docs/build/html/topics/impala_concepts.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_components.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_development.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_hadoop.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="concepts"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Concepts and Architecture</title></head><body id="concepts"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_components.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_development.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_hadoop.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="concepts"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Concepts and Architecture</title></head><body id="concepts"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Impala Concepts and Architecture</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_conditional_functions.html
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diff --git a/docs/build/html/topics/impala_conditional_functions.html b/docs/build/html/topics/impala_conditional_functions.html
index 7307580..1000716 100644
--- a/docs/build/html/topics/impala_conditional_functions.html
+++ b/docs/build/html/topics/impala_conditional_functions.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="conditional_functions"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Conditional Functions</title></head><body id="conditional_functions"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="conditional_functions"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Conditional Functions</title></head><body id="conditional_functions"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Impala Conditional Functions</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_config.html
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diff --git a/docs/build/html/topics/impala_config.html b/docs/build/html/topics/impala_config.html
index 2753128..3fdb35c 100644
--- a/docs/build/html/topics/impala_config.html
+++ b/docs/build/html/topics/impala_config.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_config_performance.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_odbc.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_jdbc.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="config"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Managing Impala</title></head><body id="config"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_config_performance.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_odbc.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_jdbc.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="config"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Managing Impala</title></head><body id="config"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Managing Impala</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_config_options.html
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diff --git a/docs/build/html/topics/impala_config_options.html b/docs/build/html/topics/impala_config_options.html
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+++ b/docs/build/html/topics/impala_config_options.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_processes.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="config_options"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Modifying Impala Startup Options</title></head><body id="config_options"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_processes.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="config_options"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Modifying Impala Startup Options</title></head><body id="config_options"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Modifying Impala Startup Options</h1>
 
@@ -346,12 +346,41 @@ Starting Impala Catalog Server:                            [  OK  ]</code></pre>
         data, or performs other kinds of DDL and DML operations.
       </p>
 
-      <p class="p">
-        By default, the metadata loading and caching on startup happens asynchronously, so Impala can begin
-        accepting requests promptly. To enable the original behavior, where Impala waited until all metadata was
-        loaded before accepting any requests, set the <span class="keyword cmdname">catalogd</span> configuration option
-        <code class="ph codeph">--load_catalog_in_background=false</code>.
-      </p>
+      <div class="p">
+        Use <code class="ph codeph">--load_catalog_in_background</code> option to control when
+        the metadata of a table is loaded.
+        <ul class="ul">
+          <li class="li">
+            If set to <code class="ph codeph">false</code>, the metadata of a table is
+            loaded when it is referenced for the first time. This means that the
+            first run of a particular query can be slower than subsequent runs.
+            Starting in Impala 2.2, the default for
+            <code class="ph codeph">load_catalog_in_background</code> is
+            <code class="ph codeph">false</code>.
+          </li>
+          <li class="li">
+            If set to <code class="ph codeph">true</code>, the catalog service attempts to
+            load metadata for a table even if no query needed that metadata. So
+            metadata will possibly be already loaded when the first query that
+            would need it is run. However, for the following reasons, we
+            recommend not to set the option to <code class="ph codeph">true</code>.
+            <ul class="ul">
+              <li class="li">
+                Background load can interfere with query-specific metadata
+                loading. This can happen on startup or after invalidating
+                metadata, with a duration depending on the amount of metadata,
+                and can lead to a seemingly random long running queries that are
+                difficult to diagnose.
+              </li>
+              <li class="li">
+                Impala may load metadata for tables that are possibly never
+                used, potentially increasing catalog size and consequently memory
+                usage for both catalog service and Impala Daemon.
+              </li>
+            </ul>
+          </li>
+        </ul>
+      </div>
 
     </div>
 

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_config_performance.html
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diff --git a/docs/build/html/topics/impala_config_performance.html b/docs/build/html/topics/impala_config_performance.html
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+++ b/docs/build/html/topics/impala_config_performance.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_config.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="config_performance"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Post-Installation Configuration for Impala</title></head><body id="config_performance"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_config.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="config_performance"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Post-Installation Configuration for Impala</title></head><body id="config_performance"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Post-Installation Configuration for Impala</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_connecting.html
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diff --git a/docs/build/html/topics/impala_connecting.html b/docs/build/html/topics/impala_connecting.html
index da3bfce..2352a43 100644
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+++ b/docs/build/html/topics/impala_connecting.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_impala_shell.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="connecting"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Connecting to impalad through impala-shell</title></head><body id="connecting"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_impala_shell.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="connecting"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Connecting to impalad through impala-shell</title></head><body id="connecting"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Connecting to impalad through impala-shell</h1>
   
@@ -93,7 +93,7 @@ $ impala-shell -i <var class="keyword varname">some.other.hostname</var>:<var cl
 <pre class="pre codeblock"><code>Welcome to the Impala shell. Press TAB twice to see a list of available commands.
 ...
 <span class="ph">(Shell
-      build version: Impala Shell v2.8.x (<var class="keyword varname">hash</var>) built on
+      build version: Impala Shell v2.12.x (<var class="keyword varname">hash</var>) built on
       <var class="keyword varname">date</var>)</span>
 [Not connected] &gt; </code></pre>
       </li>

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_conversion_functions.html
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diff --git a/docs/build/html/topics/impala_conversion_functions.html b/docs/build/html/topics/impala_conversion_functions.html
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+++ b/docs/build/html/topics/impala_conversion_functions.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="conversion_functions"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Type Conversion Functions</title></head><body id="conversion_functions"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="conversion_functions"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Type Conversion Functions</title></head><body id="conversion_functions"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Impala Type Conversion Functions</h1>
   
@@ -56,7 +56,7 @@ for tables with millions or billions of rows.
 </p>
     <p class="p">
         The way this function deals with time zones when converting to or from <code class="ph codeph">TIMESTAMP</code>
-        values is affected by the <code class="ph codeph">-use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
+        values is affected by the <code class="ph codeph">--use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
         <span class="keyword cmdname">impalad</span> daemon. See <a class="xref" href="../shared/../topics/impala_timestamp.html#timestamp">TIMESTAMP Data Type</a> for details about
         how Impala handles time zone considerations for the <code class="ph codeph">TIMESTAMP</code> data type.
       </p>

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_count.html
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diff --git a/docs/build/html/topics/impala_count.html b/docs/build/html/topics/impala_count.html
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@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_aggregate_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="count"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>COUNT Function</title></head><body id="count"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_aggregate_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="count"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>COUNT Function</title></head><body id="count"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">COUNT Function</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_create_database.html
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diff --git a/docs/build/html/topics/impala_create_database.html b/docs/build/html/topics/impala_create_database.html
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+++ b/docs/build/html/topics/impala_create_database.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_database"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE DATABASE Statement</title></head><body id="create_database"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_database"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE DATABASE Statement</title></head><body id="create_database"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">CREATE DATABASE Statement</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_create_function.html
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diff --git a/docs/build/html/topics/impala_create_function.html b/docs/build/html/topics/impala_create_function.html
index ced2c74..c3538eb 100644
--- a/docs/build/html/topics/impala_create_function.html
+++ b/docs/build/html/topics/impala_create_function.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_function"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE FUNCTION Statement</title></head><body id="create_function"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_function"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE FUNCTION Statement</title></head><body id="create_function"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">CREATE FUNCTION Statement</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_create_role.html
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diff --git a/docs/build/html/topics/impala_create_role.html b/docs/build/html/topics/impala_create_role.html
index 88913a7..da0cb07 100644
--- a/docs/build/html/topics/impala_create_role.html
+++ b/docs/build/html/topics/impala_create_role.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_role"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE ROLE Statement (Impala 2.0 or higher only)</title></head><body id="create_role"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_role"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE ROLE Statement (Impala 2.0 or higher only)</title></head><body id="create_role"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">CREATE ROLE Statement (<span class="keyword">Impala 2.0</span> or higher only)</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_create_table.html
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diff --git a/docs/build/html/topics/impala_create_table.html b/docs/build/html/topics/impala_create_table.html
index 902f321..e869ff5 100644
--- a/docs/build/html/topics/impala_create_table.html
+++ b/docs/build/html/topics/impala_create_table.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_table"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE TABLE Statement</title></head><body class="impala sql_statement" id="create_table"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_table"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE TABLE Statement</title></head><body class="impala sql_statement" id="create_table"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1 impala_title sql_statement_title" id="ariaid-title1">CREATE TABLE Statement</h1>
 

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_create_view.html
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diff --git a/docs/build/html/topics/impala_create_view.html b/docs/build/html/topics/impala_create_view.html
index 7d5d5a9..88c9c06 100644
--- a/docs/build/html/topics/impala_create_view.html
+++ b/docs/build/html/topics/impala_create_view.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_view"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE VIEW Statement</title></head><body id="create_view"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="create_view"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>CREATE VIEW Statement</title></head><body id="create_view"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">CREATE VIEW Statement</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_databases.html
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diff --git a/docs/build/html/topics/impala_databases.html b/docs/build/html/topics/impala_databases.html
index db5a200..8fa47aa 100644
--- a/docs/build/html/topics/impala_databases.html
+++ b/docs/build/html/topics/impala_databases.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_schema_objects.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="databases"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Overview of Impala Databases</title></head><body id="databases"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_schema_objects.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="databases"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Overview of Impala Databases</title></head><body id="databases"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Overview of Impala Databases</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_datatypes.html
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diff --git a/docs/build/html/topics/impala_datatypes.html b/docs/build/html/topics/impala_datatypes.html
index c308020..d41ea2d 100644
--- a/docs/build/html/topics/impala_datatypes.html
+++ b/docs/build/html/topics/impala_datatypes.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_array.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_bigint.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_boolean.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_char.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_decimal.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_double.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_float.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_int.html"><meta name="DC.Relation" scheme="URI" content=".
 ./topics/impala_map.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_real.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_smallint.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_string.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_struct.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_timestamp.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_tinyint.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_varchar.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_complex_types.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="datatypes"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Data Types</title></h
 ead><body id="datatypes"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_array.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_bigint.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_boolean.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_char.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_decimal.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_double.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_float.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_int.html"><meta name="DC.Relation" scheme="URI" content=".
 ./topics/impala_map.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_real.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_smallint.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_string.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_struct.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_timestamp.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_tinyint.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_varchar.html"><meta name="DC.Relation" scheme="URI" content="../topics/impala_complex_types.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="datatypes"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Data Types</title></h
 ead><body id="datatypes"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Data Types</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_datetime_functions.html
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diff --git a/docs/build/html/topics/impala_datetime_functions.html b/docs/build/html/topics/impala_datetime_functions.html
index d3cafaf..26d477e 100644
--- a/docs/build/html/topics/impala_datetime_functions.html
+++ b/docs/build/html/topics/impala_datetime_functions.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="datetime_functions"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Date and Time Functions</title></head><body id="datetime_functions"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_functions.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="datetime_functions"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Impala Date and Time Functions</title></head><body id="datetime_functions"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Impala Date and Time Functions</h1>
   
@@ -25,7 +25,7 @@
 
     <p class="p">
       Some of these functions are affected by the setting of the
-      <code class="ph codeph">-use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
+      <code class="ph codeph">--use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
       <span class="keyword cmdname">impalad</span> daemon. This setting is off by default, meaning that
       functions such as <code class="ph codeph">from_unixtime()</code> and <code class="ph codeph">unix_timestamp()</code>
       consider the input values to always represent the UTC time zone.
@@ -550,7 +550,6 @@ select now() as right_now, datediff(now(), now() - interval 18 hours) as 18_hour
       
 
         <dt class="dt dlterm" id="datetime_functions__day">
-          
           <code class="ph codeph">day(timestamp date), <span class="ph" id="datetime_functions__dayofmonth">dayofmonth(timestamp date)</span></code>
         </dt>
 
@@ -673,7 +672,6 @@ select now() + interval 1 day as tomorrow,
       
 
         <dt class="dt dlterm" id="datetime_functions__dayofweek">
-          
           <code class="ph codeph">dayofweek(timestamp date)</code>
         </dt>
 
@@ -808,45 +806,51 @@ select now() as right_now, days_sub(now(), 31) as 31_days_ago;
       
 
         <dt class="dt dlterm" id="datetime_functions__extract">
-          <code class="ph codeph">extract(timestamp, string unit)</code><code class="ph codeph">extract(unit FROM timestamp)</code>
+          <code class="ph codeph">extract(timestamp, string unit)</code>, <code class="ph codeph">extract(unit FROM timestamp)</code>
         </dt>
 
         <dd class="dd">
           
-          <strong class="ph b">Purpose:</strong> Returns one of the numeric date or time fields from a <code class="ph codeph">TIMESTAMP</code> value.
-          <p class="p">
-            <strong class="ph b">Unit argument:</strong> The <code class="ph codeph">unit</code> string can be one of <code class="ph codeph">epoch</code>,
-            <code class="ph codeph">year</code>, <code class="ph codeph">month</code>, <code class="ph codeph">day</code>, <code class="ph codeph">hour</code>,
-            <code class="ph codeph">minute</code>, <code class="ph codeph">second</code>, or <code class="ph codeph">millisecond</code>.
-            This argument value is case-insensitive.
-          </p>
-          <div class="p">
-            In Impala 2.0 and higher, you can use special syntax rather than a regular function call, for
-            compatibility with code that uses the SQL-99 format with the <code class="ph codeph">FROM</code> keyword. With this
-            style, the unit names are identifiers rather than <code class="ph codeph">STRING</code> literals. For example, the
-            following calls are both equivalent:
-<pre class="pre codeblock"><code>extract(year from now());
+          <strong class="ph b">Purpose:</strong> Returns one of the numeric date or time fields from a
+            <code class="ph codeph">TIMESTAMP</code> value.
+          <p class="p">
+            <strong class="ph b">Unit argument:</strong> The <code class="ph codeph">unit</code> string can be one of
+              <code class="ph codeph">epoch</code>, <code class="ph codeph">year</code>,
+              <code class="ph codeph">quarter</code>, <code class="ph codeph">month</code>,
+              <code class="ph codeph">day</code>, <code class="ph codeph">hour</code>,
+              <code class="ph codeph">minute</code>, <code class="ph codeph">second</code>, or
+              <code class="ph codeph">millisecond</code>. This argument value is
+            case-insensitive.
+          </p>
+          <div class="p"> In Impala 2.0 and higher, you can use special syntax
+            rather than a regular function call, for compatibility with code
+            that uses the SQL-99 format with the <code class="ph codeph">FROM</code> keyword.
+            With this style, the unit names are identifiers rather than
+              <code class="ph codeph">STRING</code> literals. For example, the following calls
+            are both equivalent:
+            <pre class="pre codeblock"><code>extract(year from now());
 extract(now(), "year");
 </code></pre>
           </div>
           <p class="p">
         <strong class="ph b">Usage notes:</strong>
       </p>
+          <p class="p"> Typically used in <code class="ph codeph">GROUP BY</code> queries to arrange
+            results by hour, day, month, and so on. You can also use this
+            function in an <code class="ph codeph">INSERT ... SELECT</code> into a partitioned
+            table to split up <code class="ph codeph">TIMESTAMP</code> values into individual
+            parts, if the partitioned table has separate partition key columns
+            representing year, month, day, and so on. If you need to divide by
+            more complex units of time, such as by week or by quarter, use the
+              <code class="ph codeph">TRUNC()</code> function instead. </p>
           <p class="p">
-            Typically used in <code class="ph codeph">GROUP BY</code> queries to arrange results by hour,
-            day, month, and so on. You can also use this function in an <code class="ph codeph">INSERT ... SELECT</code> into a
-            partitioned table to split up <code class="ph codeph">TIMESTAMP</code> values into individual parts, if the
-            partitioned table has separate partition key columns representing year, month, day, and so on. If you
-            need to divide by more complex units of time, such as by week or by quarter, use the
-            <code class="ph codeph">TRUNC()</code> function instead.
-          </p>
-          <p class="p">
-            <strong class="ph b">Return type:</strong> <code class="ph codeph">int</code>
+            <strong class="ph b">Return type:</strong>
+            <code class="ph codeph">int</code>
           </p>
           <p class="p">
         <strong class="ph b">Examples:</strong>
       </p>
-<pre class="pre codeblock"><code>
+          <pre class="pre codeblock"><code>
 select now() as right_now,
   extract(year from now()) as this_year,
   extract(month from now()) as this_month;
@@ -985,7 +989,7 @@ select from_timestamp('1984-09-25 16:45:30.125', 'MMM dd, yyyy HH:mm:ss.SSS');
           </p>
           <p class="p">
         The way this function deals with time zones when converting to or from <code class="ph codeph">TIMESTAMP</code>
-        values is affected by the <code class="ph codeph">-use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
+        values is affected by the <code class="ph codeph">--use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
         <span class="keyword cmdname">impalad</span> daemon. See <a class="xref" href="../shared/../topics/impala_timestamp.html#timestamp">TIMESTAMP Data Type</a> for details about
         how Impala handles time zone considerations for the <code class="ph codeph">TIMESTAMP</code> data type.
       </p>
@@ -1615,7 +1619,6 @@ select now() as right_now, minutes_sub(now(), 90) as 90_minutes_ago;
       
 
         <dt class="dt dlterm" id="datetime_functions__month">
-          
           <code class="ph codeph">month(timestamp date)</code>
         </dt>
 
@@ -1640,6 +1643,19 @@ select now() as right_now, month(now()) as current_month;
 
       
 
+        <dt class="dt dlterm" id="datetime_functions__monthname">
+          <code class="ph codeph">monthname(timestamp date)</code>
+        </dt>
+        <dd class="dd">
+          <strong class="ph b">Purpose:</strong> Returns the month field from a
+            <code class="ph codeph">TIMESTAMP</code> value, converted to the string
+          corresponding to that month name.
+          <p class="p">
+            <strong class="ph b">Return type:</strong> <code class="ph codeph">string</code>
+          </p>
+        </dd>
+
+
       
 
         <dt class="dt dlterm" id="datetime_functions__months_add">
@@ -2073,6 +2089,19 @@ select now() as right_now,
 
       
 
+        <dt class="dt dlterm" id="datetime_functions__quarter">
+          <code class="ph codeph">quarter(timestamp date)</code>
+        </dt>
+        <dd class="dd">
+          <strong class="ph b">Purpose:</strong> Returns the quarter in the input
+          <code class="ph codeph">TIMESTAMP</code> expression as an integer value, 1, 2, 3, or
+          4, where 1 represents January 1 through March 31.
+          <p class="p">
+            <strong class="ph b">Return type:</strong> <code class="ph codeph">int</code>
+          </p>
+        </dd>
+
+
       
 
         <dt class="dt dlterm" id="datetime_functions__second">
@@ -2677,9 +2706,12 @@ select now() + interval 2 weeks as 2_weeks_from_now,
 
         <dd class="dd">
           
-          <strong class="ph b">Purpose:</strong> Returns an integer value representing the current date and time as a delta from the Unix
-          epoch, or converts from a specified date and time value represented as a <code class="ph codeph">TIMESTAMP</code> or
-          <code class="ph codeph">STRING</code>.
+          <strong class="ph b">Purpose:</strong> Returns a Unix time, which is a number of seconds
+          elapsed since '1970-01-01 00:00:00' UTC. If called with no
+          argument, the current date and time is converted to its Unix time. If
+          called with arguments, the first argument represented as the
+          <code class="ph codeph">TIMESTAMP</code> or <code class="ph codeph">STRING</code> is converted to
+          its Unix time.
           <p class="p">
             <strong class="ph b">Return type:</strong> <code class="ph codeph">bigint</code>
           </p>
@@ -2728,7 +2760,7 @@ select now() + interval 2 weeks as 2_weeks_from_now,
       </div>
           <p class="p">
         The way this function deals with time zones when converting to or from <code class="ph codeph">TIMESTAMP</code>
-        values is affected by the <code class="ph codeph">-use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
+        values is affected by the <code class="ph codeph">--use_local_tz_for_unix_timestamp_conversions</code> startup flag for the
         <span class="keyword cmdname">impalad</span> daemon. See <a class="xref" href="../shared/../topics/impala_timestamp.html#timestamp">TIMESTAMP Data Type</a> for details about
         how Impala handles time zone considerations for the <code class="ph codeph">TIMESTAMP</code> data type.
       </p>
@@ -2870,8 +2902,7 @@ select current_timestamp(), utc_timestamp();
       
 
         <dt class="dt dlterm" id="datetime_functions__weekofyear">
-          
-          <code class="ph codeph">weekofyear(timestamp date)</code>
+          <code class="ph codeph">week(timestamp date)</code>, <code class="ph codeph">weekofyear(timestamp date)</code>
         </dt>
 
         <dd class="dd">
@@ -3071,4 +3102,4 @@ select cast('2016-02-29' as timestamp) as feb_29_2016,
       
     </dl>
   </div>
-<nav role="navigation" class="related-links"><div class="familylinks"><div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/impala_functions.html">Impala Built-In Functions</a></div></div></nav></article></main></body></html>
\ No newline at end of file
+<nav role="navigation" class="related-links"><div class="familylinks"><div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/impala_functions.html">Impala Built-In Functions</a></div></div></nav></article></main></body></html>

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_ddl.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_ddl.html b/docs/build/html/topics/impala_ddl.html
index 29b6efc..852ff0f 100644
--- a/docs/build/html/topics/impala_ddl.html
+++ b/docs/build/html/topics/impala_ddl.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="ddl"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DDL Statements</title></head><body id="ddl"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="ddl"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DDL Statements</title></head><body id="ddl"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DDL Statements</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_debug_action.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_debug_action.html b/docs/build/html/topics/impala_debug_action.html
index 14556e4..0ca9106 100644
--- a/docs/build/html/topics/impala_debug_action.html
+++ b/docs/build/html/topics/impala_debug_action.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="debug_action"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEBUG_ACTION Query Option</title></head><body id="debug_action"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="debug_action"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEBUG_ACTION Query Option</title></head><body id="debug_action"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DEBUG_ACTION Query Option</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_decimal.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_decimal.html b/docs/build/html/topics/impala_decimal.html
index 8614781..ed7e5c0 100644
--- a/docs/build/html/topics/impala_decimal.html
+++ b/docs/build/html/topics/impala_decimal.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_datatypes.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="decimal"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DECIMAL Data Type (Impala 1.4 or higher only)</title></head><body id="decimal"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_datatypes.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="decimal"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DECIMAL Data Type (Impala 1.4 or higher only)</title></head><body id="decimal"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DECIMAL Data Type (<span class="keyword">Impala 1.4</span> or higher only)</h1>
   
@@ -160,11 +160,13 @@
     </p>
 
     <p class="p">
-      <span class="ph">Casting an integer or floating-point value <code class="ph codeph">N</code> to
+      <span class="ph">
+          Casting an integer or floating-point value <code class="ph codeph">N</code> to
         <code class="ph codeph">TIMESTAMP</code> produces a value that is <code class="ph codeph">N</code> seconds past the start of the epoch
         date (January 1, 1970). By default, the result value represents a date and time in the UTC time zone.
-        If the setting <code class="ph codeph">-use_local_tz_for_unix_timestamp_conversions=true</code> is in effect,
-        the resulting <code class="ph codeph">TIMESTAMP</code> represents a date and time in the local time zone.</span>
+        If the setting <code class="ph codeph">--use_local_tz_for_unix_timestamp_conversions=true</code> is in effect,
+        the resulting <code class="ph codeph">TIMESTAMP</code> represents a date and time in the local time zone.
+        </span>
     </p>
 
     <p class="p">
@@ -807,7 +809,7 @@ SELECT CAST(1000.5 AS DECIMAL);
         <strong class="ph b">Kudu considerations:</strong>
       </p>
     <p class="p">
-        Currently, the data types <code class="ph codeph">DECIMAL</code>, <code class="ph codeph">CHAR</code>, <code class="ph codeph">VARCHAR</code>,
+        Currently, the data types <code class="ph codeph">CHAR</code>, <code class="ph codeph">VARCHAR</code>,
         <code class="ph codeph">ARRAY</code>, <code class="ph codeph">MAP</code>, and <code class="ph codeph">STRUCT</code> cannot be used with Kudu tables.
       </p>
 

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_decimal_v2.html
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diff --git a/docs/build/html/topics/impala_decimal_v2.html b/docs/build/html/topics/impala_decimal_v2.html
index 70f70c7..4342a1b 100644
--- a/docs/build/html/topics/impala_decimal_v2.html
+++ b/docs/build/html/topics/impala_decimal_v2.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="decimal_v2"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DECIMAL_V2 Query Option</title></head><body id="decimal_v2"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="decimal_v2"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DECIMAL_V2 Query Option</title></head><body id="decimal_v2"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DECIMAL_V2 Query Option</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_default_join_distribution_mode.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_default_join_distribution_mode.html b/docs/build/html/topics/impala_default_join_distribution_mode.html
index 4bc4477..0a86577 100644
--- a/docs/build/html/topics/impala_default_join_distribution_mode.html
+++ b/docs/build/html/topics/impala_default_join_distribution_mode.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="default_join_distribution_mode"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEFAULT_JOIN_DISTRIBUTION_MODE Query Option</title></head><body id="default_join_distribution_mode"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="default_join_distribution_mode"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEFAULT_JOIN_DISTRIBUTION_MODE Query Option</title></head><body id="default_join_distribution_mode"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DEFAULT_JOIN_DISTRIBUTION_MODE Query Option</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_default_order_by_limit.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_default_order_by_limit.html b/docs/build/html/topics/impala_default_order_by_limit.html
index 2002724..20e8ea4 100644
--- a/docs/build/html/topics/impala_default_order_by_limit.html
+++ b/docs/build/html/topics/impala_default_order_by_limit.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="default_order_by_limit"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEFAULT_ORDER_BY_LIMIT Query Option</title></head><body id="default_order_by_limit"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="default_order_by_limit"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEFAULT_ORDER_BY_LIMIT Query Option</title></head><body id="default_order_by_limit"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DEFAULT_ORDER_BY_LIMIT Query Option</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_default_spillable_buffer_size.html
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diff --git a/docs/build/html/topics/impala_default_spillable_buffer_size.html b/docs/build/html/topics/impala_default_spillable_buffer_size.html
index 031a534..0524d13 100644
--- a/docs/build/html/topics/impala_default_spillable_buffer_size.html
+++ b/docs/build/html/topics/impala_default_spillable_buffer_size.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="default_spillable_buffer_size"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEFAULT_SPILLABLE_BUFFER_SIZE Query Option</title></head><body id="default_spillable_buffer_size"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="default_spillable_buffer_size"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DEFAULT_SPILLABLE_BUFFER_SIZE Query Option</title></head><body id="default_spillable_buffer_size"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DEFAULT_SPILLABLE_BUFFER_SIZE Query Option</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_delegation.html
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diff --git a/docs/build/html/topics/impala_delegation.html b/docs/build/html/topics/impala_delegation.html
index d4d9dc1..70c252c 100644
--- a/docs/build/html/topics/impala_delegation.html
+++ b/docs/build/html/topics/impala_delegation.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_authentication.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="delegation"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Configuring Impala Delegation for Hue and BI Tools</title></head><body id="delegation"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_authentication.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="delegation"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Configuring Impala Delegation for Hue and BI Tools</title></head><body id="delegation"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Configuring Impala Delegation for Hue and BI Tools</h1>
 

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_delete.html
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diff --git a/docs/build/html/topics/impala_delete.html b/docs/build/html/topics/impala_delete.html
index c0bdeea..00a47d8 100644
--- a/docs/build/html/topics/impala_delete.html
+++ b/docs/build/html/topics/impala_delete.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="delete"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DELETE Statement (Impala 2.8 or higher only)</title></head><body id="delete"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="delete"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DELETE Statement (Impala 2.8 or higher only)</title></head><body id="delete"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DELETE Statement (<span class="keyword">Impala 2.8</span> or higher only)</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_describe.html
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diff --git a/docs/build/html/topics/impala_describe.html b/docs/build/html/topics/impala_describe.html
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-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="describe"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DESCRIBE Statement</title></head><body id="describe"><main role="main"><article role="article" aria-labelledby="describe__desc">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_langref_sql.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="describe"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DESCRIBE Statement</title></head><body id="describe"><main role="main"><article role="article" aria-labelledby="describe__desc">
 
   <h1 class="title topictitle1" id="describe__desc">DESCRIBE Statement</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_development.html
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diff --git a/docs/build/html/topics/impala_development.html b/docs/build/html/topics/impala_development.html
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 <!DOCTYPE html
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-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_concepts.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="intro_dev"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Developing Impala Applications</title></head><body id="intro_dev"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_concepts.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="intro_dev"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>Developing Impala Applications</title></head><body id="intro_dev"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">Developing Impala Applications</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_disable_codegen.html
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diff --git a/docs/build/html/topics/impala_disable_codegen.html b/docs/build/html/topics/impala_disable_codegen.html
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 <!DOCTYPE html
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-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="disable_codegen"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DISABLE_CODEGEN Query Option</title></head><body id="disable_codegen"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="disable_codegen"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DISABLE_CODEGEN Query Option</title></head><body id="disable_codegen"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DISABLE_CODEGEN Query Option</h1>
   

http://git-wip-us.apache.org/repos/asf/impala/blob/592fd85d/docs/build/html/topics/impala_disable_row_runtime_filtering.html
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diff --git a/docs/build/html/topics/impala_disable_row_runtime_filtering.html b/docs/build/html/topics/impala_disable_row_runtime_filtering.html
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 <!DOCTYPE html
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-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="disable_row_runtime_filtering"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DISABLE_ROW_RUNTIME_FILTERING Query Option (Impala 2.5 or higher only)</title></head><body id="disable_row_runtime_filtering"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2018"><meta name="DC.rights.owner" content="(C) Copyright 2018"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.12x"><meta name="version" content="Impala 2.12x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="disable_row_runtime_filtering"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>DISABLE_ROW_RUNTIME_FILTERING Query Option (Impala 2.5 or higher only)</title></head><body id="disable_row_runtime_filtering"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
 
   <h1 class="title topictitle1" id="ariaid-title1">DISABLE_ROW_RUNTIME_FILTERING Query Option (<span class="keyword">Impala 2.5</span> or higher only)</h1>