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Posted to commits@cassandra.apache.org by ty...@apache.org on 2016/08/23 19:25:18 UTC
svn commit: r1757419 [19/29] - in /cassandra/site/src/doc: ./ 3.10/
3.10/_images/ 3.10/_sources/ 3.10/_sources/architecture/
3.10/_sources/configuration/ 3.10/_sources/cql/
3.10/_sources/data_modeling/ 3.10/_sources/development/ 3.10/_sources/faq/
3.10...
Added: cassandra/site/src/doc/3.10/cql/indexes.html
URL: http://svn.apache.org/viewvc/cassandra/site/src/doc/3.10/cql/indexes.html?rev=1757419&view=auto
==============================================================================
--- cassandra/site/src/doc/3.10/cql/indexes.html (added)
+++ cassandra/site/src/doc/3.10/cql/indexes.html Tue Aug 23 19:25:17 2016
@@ -0,0 +1,170 @@
+---
+layout: docpage
+
+title: "Documentation"
+
+is_homepage: false
+is_sphinx_doc: true
+
+doc-parent: "The Cassandra Query Language (CQL)"
+
+doc-title: "Secondary Indexes"
+doc-header-links: '
+ <link rel="top" title="Apache Cassandra Documentation v3.10" href="../index.html"/>
+ <link rel="up" title="The Cassandra Query Language (CQL)" href="index.html"/>
+ <link rel="next" title="Materialized Views" href="mvs.html"/>
+ <link rel="prev" title="Data Manipulation" href="dml.html"/>
+'
+doc-search-path: "../search.html"
+
+extra-footer: '
+<script type="text/javascript">
+ var DOCUMENTATION_OPTIONS = {
+ URL_ROOT: "",
+ VERSION: "",
+ COLLAPSE_INDEX: false,
+ FILE_SUFFIX: ".html",
+ HAS_SOURCE: false,
+ SOURCELINK_SUFFIX: ""
+ };
+</script>
+'
+
+---
+<div class="container-fluid">
+ <div class="row">
+ <div class="col-md-2">
+ <div class="doc-navigation">
+ <div class="doc-menu" role="navigation">
+ <div class="navbar-header">
+ <button type="button" class="pull-left navbar-toggle" data-toggle="collapse" data-target=".sidebar-navbar-collapse">
+ <span class="sr-only">Toggle navigation</span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ </button>
+ </div>
+ <div class="navbar-collapse collapse sidebar-navbar-collapse">
+ <form id="doc-search-form" class="navbar-form" action="../search.html" method="get" role="search">
+ <div class="form-group">
+ <input type="text" size="30" class="form-control input-sm" name="q" placeholder="Search docs">
+ <input type="hidden" name="check_keywords" value="yes" />
+ <input type="hidden" name="area" value="default" />
+ </div>
+ </form>
+
+
+
+ <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="../getting_started/index.html">Getting Started</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../architecture/index.html">Architecture</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../data_modeling/index.html">Data Modeling</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="index.html">The Cassandra Query Language (CQL)</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="definitions.html">Definitions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="types.html">Data Types</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ddl.html">Data Definition</a></li>
+<li class="toctree-l2"><a class="reference internal" href="dml.html">Data Manipulation</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">Secondary Indexes</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="#create-index">CREATE INDEX</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#drop-index">DROP INDEX</a></li>
+</ul>
+</li>
+<li class="toctree-l2"><a class="reference internal" href="mvs.html">Materialized Views</a></li>
+<li class="toctree-l2"><a class="reference internal" href="security.html">Security</a></li>
+<li class="toctree-l2"><a class="reference internal" href="functions.html">Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="json.html">JSON Support</a></li>
+<li class="toctree-l2"><a class="reference internal" href="triggers.html">Triggers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="appendices.html">Appendices</a></li>
+<li class="toctree-l2"><a class="reference internal" href="changes.html">Changes</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../configuration/index.html">Configuring Cassandra</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../operating/index.html">Operating Cassandra</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../tools/index.html">Cassandra Tools</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../troubleshooting/index.html">Troubleshooting</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../development/index.html">Cassandra Development</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../faq/index.html">Frequently Asked Questions</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../bugs.html">Reporting Bugs and Contributing</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../contactus.html">Contact us</a></li>
+</ul>
+
+
+
+ </div><!--/.nav-collapse -->
+ </div>
+ </div>
+ </div>
+ <div class="col-md-8">
+ <div class="content doc-content">
+ <div class="container">
+
+ <div class="section" id="secondary-indexes">
+<span id="id1"></span><h1>Secondary Indexes<a class="headerlink" href="#secondary-indexes" title="Permalink to this headline">¶</a></h1>
+<p>CQL supports creating secondary indexes on tables, allowing queries on the table to use those indexes. A secondary index
+is identified by a name defined by:</p>
+<pre>
+<strong id="grammar-token-index_name">index_name</strong> ::= re('[a-zA-Z_0-9]+')
+</pre>
+<div class="section" id="create-index">
+<span id="create-index-statement"></span><h2>CREATE INDEX<a class="headerlink" href="#create-index" title="Permalink to this headline">¶</a></h2>
+<p>Creating a secondary index on a table uses the <code class="docutils literal"><span class="pre">CREATE</span> <span class="pre">INDEX</span></code> statement:</p>
+<pre>
+<strong id="grammar-token-create_index_statement">create_index_statement</strong> ::= CREATE [ CUSTOM ] INDEX [ IF NOT EXISTS ] [ <a class="reference internal" href="#grammar-token-index_name"><code class="xref docutils literal"><span class="pre">index_name</span></code></a> ]
+ ON <a class="reference internal" href="ddl.html#grammar-token-table_name"><code class="xref docutils literal"><span class="pre">table_name</span></code></a> '(' <a class="reference internal" href="#grammar-token-index_identifier"><code class="xref docutils literal"><span class="pre">index_identifier</span></code></a> ')'
+ [ USING <a class="reference internal" href="definitions.html#grammar-token-string"><code class="xref docutils literal"><span class="pre">string</span></code></a> [ WITH OPTIONS = <a class="reference internal" href="types.html#grammar-token-map_literal"><code class="xref docutils literal"><span class="pre">map_literal</span></code></a> ] ]
+<strong id="grammar-token-index_identifier">index_identifier </strong> ::= <a class="reference internal" href="ddl.html#grammar-token-column_name"><code class="xref docutils literal"><span class="pre">column_name</span></code></a>
+ | ( KEYS | VALUES | ENTRIES | FULL ) '(' <a class="reference internal" href="ddl.html#grammar-token-column_name"><code class="xref docutils literal"><span class="pre">column_name</span></code></a> ')'
+</pre>
+<p>For instance:</p>
+<div class="highlight-cql"><div class="highlight"><pre><span></span><span class="k">CREATE</span> <span class="k">INDEX</span> <span class="n">userIndex</span> <span class="k">ON</span> <span class="n">NerdMovies</span> <span class="p">(</span><span class="k">user</span><span class="p">);</span>
+<span class="k">CREATE</span> <span class="k">INDEX</span> <span class="k">ON</span> <span class="n">Mutants</span> <span class="p">(</span><span class="n">abilityId</span><span class="p">);</span>
+<span class="k">CREATE</span> <span class="k">INDEX</span> <span class="k">ON</span> <span class="k">users</span> <span class="p">(</span><span class="k">keys</span><span class="p">(</span><span class="n">favs</span><span class="p">));</span>
+<span class="k">CREATE</span> <span class="k">CUSTOM</span> <span class="k">INDEX</span> <span class="k">ON</span> <span class="k">users</span> <span class="p">(</span><span class="n">email</span><span class="p">)</span> <span class="k">USING</span> <span class="s1">'path.to.the.IndexClass'</span><span class="p">;</span>
+<span class="k">CREATE</span> <span class="k">CUSTOM</span> <span class="k">INDEX</span> <span class="k">ON</span> <span class="k">users</span> <span class="p">(</span><span class="n">email</span><span class="p">)</span> <span class="k">USING</span> <span class="s1">'path.to.the.IndexClass'</span> <span class="k">WITH</span> <span class="k">OPTIONS</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'storage'</span><span class="p">:</span> <span class="s1">'/mnt/ssd/indexes/'</span><span class="p">};</span>
+</pre></div>
+</div>
+<p>The <code class="docutils literal"><span class="pre">CREATE</span> <span class="pre">INDEX</span></code> statement is used to create a new (automatic) secondary index for a given (existing) column in a
+given table. A name for the index itself can be specified before the <code class="docutils literal"><span class="pre">ON</span></code> keyword, if desired. If data already exists
+for the column, it will be indexed asynchronously. After the index is created, new data for the column is indexed
+automatically at insertion time.</p>
+<p>Attempting to create an already existing index will return an error unless the <code class="docutils literal"><span class="pre">IF</span> <span class="pre">NOT</span> <span class="pre">EXISTS</span></code> option is used. If it
+is used, the statement will be a no-op if the index already exists.</p>
+<div class="section" id="indexes-on-map-keys">
+<h3>Indexes on Map Keys<a class="headerlink" href="#indexes-on-map-keys" title="Permalink to this headline">¶</a></h3>
+<p>When creating an index on a <a class="reference internal" href="types.html#maps"><span class="std std-ref">maps</span></a>, you may index either the keys or the values. If the column identifier is
+placed within the <code class="docutils literal"><span class="pre">keys()</span></code> function, the index will be on the map keys, allowing you to use <code class="docutils literal"><span class="pre">CONTAINS</span> <span class="pre">KEY</span></code> in
+<code class="docutils literal"><span class="pre">WHERE</span></code> clauses. Otherwise, the index will be on the map values.</p>
+</div>
+</div>
+<div class="section" id="drop-index">
+<span id="drop-index-statement"></span><h2>DROP INDEX<a class="headerlink" href="#drop-index" title="Permalink to this headline">¶</a></h2>
+<p>Dropping a secondary index uses the <code class="docutils literal"><span class="pre">DROP</span> <span class="pre">INDEX</span></code> statement:</p>
+<pre>
+<strong id="grammar-token-drop_index_statement">drop_index_statement</strong> ::= DROP INDEX [ IF EXISTS ] <a class="reference internal" href="#grammar-token-index_name"><code class="xref docutils literal"><span class="pre">index_name</span></code></a>
+</pre>
+<p>The <code class="docutils literal"><span class="pre">DROP</span> <span class="pre">INDEX</span></code> statement is used to drop an existing secondary index. The argument of the statement is the index
+name, which may optionally specify the keyspace of the index.</p>
+<p>If the index does not exists, the statement will return an error, unless <code class="docutils literal"><span class="pre">IF</span> <span class="pre">EXISTS</span></code> is used in which case the
+operation is a no-op.</p>
+</div>
+</div>
+
+
+
+
+ <div class="doc-prev-next-links" role="navigation" aria-label="footer navigation">
+
+ <a href="mvs.html" class="btn btn-default pull-right " role="button" title="Materialized Views" accesskey="n">Next <span class="glyphicon glyphicon-circle-arrow-right" aria-hidden="true"></span></a>
+
+
+ <a href="dml.html" class="btn btn-default" role="button" title="Data Manipulation" accesskey="p"><span class="glyphicon glyphicon-circle-arrow-left" aria-hidden="true"></span> Previous</a>
+
+ </div>
+
+ </div>
+ </div>
+ </div>
+ <div class="col-md-2">
+ </div>
+ </div>
+</div>
\ No newline at end of file
Added: cassandra/site/src/doc/3.10/cql/json.html
URL: http://svn.apache.org/viewvc/cassandra/site/src/doc/3.10/cql/json.html?rev=1757419&view=auto
==============================================================================
--- cassandra/site/src/doc/3.10/cql/json.html (added)
+++ cassandra/site/src/doc/3.10/cql/json.html Tue Aug 23 19:25:17 2016
@@ -0,0 +1,317 @@
+---
+layout: docpage
+
+title: "Documentation"
+
+is_homepage: false
+is_sphinx_doc: true
+
+doc-parent: "The Cassandra Query Language (CQL)"
+
+doc-title: "JSON Support"
+doc-header-links: '
+ <link rel="top" title="Apache Cassandra Documentation v3.10" href="../index.html"/>
+ <link rel="up" title="The Cassandra Query Language (CQL)" href="index.html"/>
+ <link rel="next" title="Triggers" href="triggers.html"/>
+ <link rel="prev" title="Functions" href="functions.html"/>
+'
+doc-search-path: "../search.html"
+
+extra-footer: '
+<script type="text/javascript">
+ var DOCUMENTATION_OPTIONS = {
+ URL_ROOT: "",
+ VERSION: "",
+ COLLAPSE_INDEX: false,
+ FILE_SUFFIX: ".html",
+ HAS_SOURCE: false,
+ SOURCELINK_SUFFIX: ""
+ };
+</script>
+'
+
+---
+<div class="container-fluid">
+ <div class="row">
+ <div class="col-md-2">
+ <div class="doc-navigation">
+ <div class="doc-menu" role="navigation">
+ <div class="navbar-header">
+ <button type="button" class="pull-left navbar-toggle" data-toggle="collapse" data-target=".sidebar-navbar-collapse">
+ <span class="sr-only">Toggle navigation</span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ </button>
+ </div>
+ <div class="navbar-collapse collapse sidebar-navbar-collapse">
+ <form id="doc-search-form" class="navbar-form" action="../search.html" method="get" role="search">
+ <div class="form-group">
+ <input type="text" size="30" class="form-control input-sm" name="q" placeholder="Search docs">
+ <input type="hidden" name="check_keywords" value="yes" />
+ <input type="hidden" name="area" value="default" />
+ </div>
+ </form>
+
+
+
+ <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="../getting_started/index.html">Getting Started</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../architecture/index.html">Architecture</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../data_modeling/index.html">Data Modeling</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="index.html">The Cassandra Query Language (CQL)</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="definitions.html">Definitions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="types.html">Data Types</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ddl.html">Data Definition</a></li>
+<li class="toctree-l2"><a class="reference internal" href="dml.html">Data Manipulation</a></li>
+<li class="toctree-l2"><a class="reference internal" href="indexes.html">Secondary Indexes</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mvs.html">Materialized Views</a></li>
+<li class="toctree-l2"><a class="reference internal" href="security.html">Security</a></li>
+<li class="toctree-l2"><a class="reference internal" href="functions.html">Functions</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">JSON Support</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="#select-json">SELECT JSON</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#insert-json">INSERT JSON</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#json-encoding-of-cassandra-data-types">JSON Encoding of Cassandra Data Types</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#the-fromjson-function">The fromJson() Function</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#the-tojson-function">The toJson() Function</a></li>
+</ul>
+</li>
+<li class="toctree-l2"><a class="reference internal" href="triggers.html">Triggers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="appendices.html">Appendices</a></li>
+<li class="toctree-l2"><a class="reference internal" href="changes.html">Changes</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../configuration/index.html">Configuring Cassandra</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../operating/index.html">Operating Cassandra</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../tools/index.html">Cassandra Tools</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../troubleshooting/index.html">Troubleshooting</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../development/index.html">Cassandra Development</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../faq/index.html">Frequently Asked Questions</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../bugs.html">Reporting Bugs and Contributing</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../contactus.html">Contact us</a></li>
+</ul>
+
+
+
+ </div><!--/.nav-collapse -->
+ </div>
+ </div>
+ </div>
+ <div class="col-md-8">
+ <div class="content doc-content">
+ <div class="container">
+
+ <div class="section" id="json-support">
+<span id="cql-json"></span><h1>JSON Support<a class="headerlink" href="#json-support" title="Permalink to this headline">¶</a></h1>
+<p>Cassandra 2.2 introduces JSON support to <a class="reference internal" href="dml.html#select-statement"><span class="std std-ref">SELECT</span></a> and <a class="reference internal" href="dml.html#insert-statement"><span class="std std-ref">INSERT</span></a>
+statements. This support does not fundamentally alter the CQL API (for example, the schema is still enforced), it simply
+provides a convenient way to work with JSON documents.</p>
+<div class="section" id="select-json">
+<h2>SELECT JSON<a class="headerlink" href="#select-json" title="Permalink to this headline">¶</a></h2>
+<p>With <code class="docutils literal"><span class="pre">SELECT</span></code> statements, the <code class="docutils literal"><span class="pre">JSON</span></code> keyword can be used to return each row as a single <code class="docutils literal"><span class="pre">JSON</span></code> encoded map. The
+remainder of the <code class="docutils literal"><span class="pre">SELECT</span></code> statement behavior is the same.</p>
+<p>The result map keys are the same as the column names in a normal result set. For example, a statement like <code class="docutils literal"><span class="pre">SELECT</span> <span class="pre">JSON</span>
+<span class="pre">a,</span> <span class="pre">ttl(b)</span> <span class="pre">FROM</span> <span class="pre">...</span></code> would result in a map with keys <code class="docutils literal"><span class="pre">"a"</span></code> and <code class="docutils literal"><span class="pre">"ttl(b)"</span></code>. However, this is one notable exception:
+for symmetry with <code class="docutils literal"><span class="pre">INSERT</span> <span class="pre">JSON</span></code> behavior, case-sensitive column names with upper-case letters will be surrounded with
+double quotes. For example, <code class="docutils literal"><span class="pre">SELECT</span> <span class="pre">JSON</span> <span class="pre">myColumn</span> <span class="pre">FROM</span> <span class="pre">...</span></code> would result in a map key <code class="docutils literal"><span class="pre">"\"myColumn\""</span></code> (note the
+escaped quotes).</p>
+<p>The map values will <code class="docutils literal"><span class="pre">JSON</span></code>-encoded representations (as described below) of the result set values.</p>
+</div>
+<div class="section" id="insert-json">
+<h2>INSERT JSON<a class="headerlink" href="#insert-json" title="Permalink to this headline">¶</a></h2>
+<p>With <code class="docutils literal"><span class="pre">INSERT</span></code> statements, the new <code class="docutils literal"><span class="pre">JSON</span></code> keyword can be used to enable inserting a <code class="docutils literal"><span class="pre">JSON</span></code> encoded map as a single
+row. The format of the <code class="docutils literal"><span class="pre">JSON</span></code> map should generally match that returned by a <code class="docutils literal"><span class="pre">SELECT</span> <span class="pre">JSON</span></code> statement on the same
+table. In particular, case-sensitive column names should be surrounded with double quotes. For example, to insert into a
+table with two columns named “myKey” and “value”, you would do the following:</p>
+<div class="highlight-cql"><div class="highlight"><pre><span></span><span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">mytable</span> <span class="k">JSON</span> <span class="s1">'{ "\"myKey\"": 0, "value": 0}'</span>
+</pre></div>
+</div>
+<p>By default (or if <code class="docutils literal"><span class="pre">DEFAULT</span> <span class="pre">NULL</span></code> is explicitly used), a column omitted from the <code class="docutils literal"><span class="pre">JSON</span></code> map will be set to <code class="docutils literal"><span class="pre">NULL</span></code>,
+meaning that any pre-existing value for that column will be removed (resulting in a tombstone being created).
+Alternatively, if the <code class="docutils literal"><span class="pre">DEFAULT</span> <span class="pre">UNSET</span></code> directive is used after the value, omitted column values will be left unset,
+meaning that pre-existing values for those column will be preserved.</p>
+</div>
+<div class="section" id="json-encoding-of-cassandra-data-types">
+<h2>JSON Encoding of Cassandra Data Types<a class="headerlink" href="#json-encoding-of-cassandra-data-types" title="Permalink to this headline">¶</a></h2>
+<p>Where possible, Cassandra will represent and accept data types in their native <code class="docutils literal"><span class="pre">JSON</span></code> representation. Cassandra will
+also accept string representations matching the CQL literal format for all single-field types. For example, floats,
+ints, UUIDs, and dates can be represented by CQL literal strings. However, compound types, such as collections, tuples,
+and user-defined types must be represented by native <code class="docutils literal"><span class="pre">JSON</span></code> collections (maps and lists) or a JSON-encoded string
+representation of the collection.</p>
+<p>The following table describes the encodings that Cassandra will accept in <code class="docutils literal"><span class="pre">INSERT</span> <span class="pre">JSON</span></code> values (and <code class="docutils literal"><span class="pre">fromJson()</span></code>
+arguments) as well as the format Cassandra will use when returning data for <code class="docutils literal"><span class="pre">SELECT</span> <span class="pre">JSON</span></code> statements (and
+<code class="docutils literal"><span class="pre">fromJson()</span></code>):</p>
+<table border="1" class="docutils">
+<colgroup>
+<col width="13%" />
+<col width="21%" />
+<col width="13%" />
+<col width="54%" />
+</colgroup>
+<thead valign="bottom">
+<tr class="row-odd"><th class="head">Type</th>
+<th class="head">Formats accepted</th>
+<th class="head">Return format</th>
+<th class="head">Notes</th>
+</tr>
+</thead>
+<tbody valign="top">
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">ascii</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>Uses JSON’s <code class="docutils literal"><span class="pre">\u</span></code> character escape</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">bigint</span></code></td>
+<td>integer, string</td>
+<td>integer</td>
+<td>String must be valid 64 bit integer</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">blob</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>String should be 0x followed by an even number of hex digits</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">boolean</span></code></td>
+<td>boolean, string</td>
+<td>boolean</td>
+<td>String must be “true” or “false”</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">date</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>Date in format <code class="docutils literal"><span class="pre">YYYY-MM-DD</span></code>, timezone UTC</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">decimal</span></code></td>
+<td>integer, float, string</td>
+<td>float</td>
+<td>May exceed 32 or 64-bit IEEE-754 floating point precision in
+client-side decoder</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">double</span></code></td>
+<td>integer, float, string</td>
+<td>float</td>
+<td>String must be valid integer or float</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">float</span></code></td>
+<td>integer, float, string</td>
+<td>float</td>
+<td>String must be valid integer or float</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">inet</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>IPv4 or IPv6 address</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">int</span></code></td>
+<td>integer, string</td>
+<td>integer</td>
+<td>String must be valid 32 bit integer</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">list</span></code></td>
+<td>list, string</td>
+<td>list</td>
+<td>Uses JSON’s native list representation</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">map</span></code></td>
+<td>map, string</td>
+<td>map</td>
+<td>Uses JSON’s native map representation</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">smallint</span></code></td>
+<td>integer, string</td>
+<td>integer</td>
+<td>String must be valid 16 bit integer</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">set</span></code></td>
+<td>list, string</td>
+<td>list</td>
+<td>Uses JSON’s native list representation</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">text</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>Uses JSON’s <code class="docutils literal"><span class="pre">\u</span></code> character escape</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">time</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>Time of day in format <code class="docutils literal"><span class="pre">HH-MM-SS[.fffffffff]</span></code></td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">timestamp</span></code></td>
+<td>integer, string</td>
+<td>string</td>
+<td>A timestamp. Strings constant allows to input <a class="reference internal" href="types.html#timestamps"><span class="std std-ref">timestamps
+as dates</span></a>. Datestamps with format <code class="docutils literal"><span class="pre">YYYY-MM-DD</span>
+<span class="pre">HH:MM:SS.SSS</span></code> are returned.</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">timeuuid</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>Type 1 UUID. See <a class="reference internal" href="definitions.html#grammar-token-constant"><code class="xref std std-token docutils literal"><span class="pre">constant</span></code></a> for the UUID format</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">tinyint</span></code></td>
+<td>integer, string</td>
+<td>integer</td>
+<td>String must be valid 8 bit integer</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">tuple</span></code></td>
+<td>list, string</td>
+<td>list</td>
+<td>Uses JSON’s native list representation</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">UDT</span></code></td>
+<td>map, string</td>
+<td>map</td>
+<td>Uses JSON’s native map representation with field names as keys</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">uuid</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>See <a class="reference internal" href="definitions.html#grammar-token-constant"><code class="xref std std-token docutils literal"><span class="pre">constant</span></code></a> for the UUID format</td>
+</tr>
+<tr class="row-even"><td><code class="docutils literal"><span class="pre">varchar</span></code></td>
+<td>string</td>
+<td>string</td>
+<td>Uses JSON’s <code class="docutils literal"><span class="pre">\u</span></code> character escape</td>
+</tr>
+<tr class="row-odd"><td><code class="docutils literal"><span class="pre">varint</span></code></td>
+<td>integer, string</td>
+<td>integer</td>
+<td>Variable length; may overflow 32 or 64 bit integers in
+client-side decoder</td>
+</tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="the-fromjson-function">
+<h2>The fromJson() Function<a class="headerlink" href="#the-fromjson-function" title="Permalink to this headline">¶</a></h2>
+<p>The <code class="docutils literal"><span class="pre">fromJson()</span></code> function may be used similarly to <code class="docutils literal"><span class="pre">INSERT</span> <span class="pre">JSON</span></code>, but for a single column value. It may only be used
+in the <code class="docutils literal"><span class="pre">VALUES</span></code> clause of an <code class="docutils literal"><span class="pre">INSERT</span></code> statement or as one of the column values in an <code class="docutils literal"><span class="pre">UPDATE</span></code>, <code class="docutils literal"><span class="pre">DELETE</span></code>, or
+<code class="docutils literal"><span class="pre">SELECT</span></code> statement. For example, it cannot be used in the selection clause of a <code class="docutils literal"><span class="pre">SELECT</span></code> statement.</p>
+</div>
+<div class="section" id="the-tojson-function">
+<h2>The toJson() Function<a class="headerlink" href="#the-tojson-function" title="Permalink to this headline">¶</a></h2>
+<p>The <code class="docutils literal"><span class="pre">toJson()</span></code> function may be used similarly to <code class="docutils literal"><span class="pre">SELECT</span> <span class="pre">JSON</span></code>, but for a single column value. It may only be used
+in the selection clause of a <code class="docutils literal"><span class="pre">SELECT</span></code> statement.</p>
+</div>
+</div>
+
+
+
+
+ <div class="doc-prev-next-links" role="navigation" aria-label="footer navigation">
+
+ <a href="triggers.html" class="btn btn-default pull-right " role="button" title="Triggers" accesskey="n">Next <span class="glyphicon glyphicon-circle-arrow-right" aria-hidden="true"></span></a>
+
+
+ <a href="functions.html" class="btn btn-default" role="button" title="Functions" accesskey="p"><span class="glyphicon glyphicon-circle-arrow-left" aria-hidden="true"></span> Previous</a>
+
+ </div>
+
+ </div>
+ </div>
+ </div>
+ <div class="col-md-2">
+ </div>
+ </div>
+</div>
\ No newline at end of file
Added: cassandra/site/src/doc/3.10/cql/mvs.html
URL: http://svn.apache.org/viewvc/cassandra/site/src/doc/3.10/cql/mvs.html?rev=1757419&view=auto
==============================================================================
--- cassandra/site/src/doc/3.10/cql/mvs.html (added)
+++ cassandra/site/src/doc/3.10/cql/mvs.html Tue Aug 23 19:25:17 2016
@@ -0,0 +1,243 @@
+---
+layout: docpage
+
+title: "Documentation"
+
+is_homepage: false
+is_sphinx_doc: true
+
+doc-parent: "The Cassandra Query Language (CQL)"
+
+doc-title: "Materialized Views"
+doc-header-links: '
+ <link rel="top" title="Apache Cassandra Documentation v3.10" href="../index.html"/>
+ <link rel="up" title="The Cassandra Query Language (CQL)" href="index.html"/>
+ <link rel="next" title="Security" href="security.html"/>
+ <link rel="prev" title="Secondary Indexes" href="indexes.html"/>
+'
+doc-search-path: "../search.html"
+
+extra-footer: '
+<script type="text/javascript">
+ var DOCUMENTATION_OPTIONS = {
+ URL_ROOT: "",
+ VERSION: "",
+ COLLAPSE_INDEX: false,
+ FILE_SUFFIX: ".html",
+ HAS_SOURCE: false,
+ SOURCELINK_SUFFIX: ""
+ };
+</script>
+'
+
+---
+<div class="container-fluid">
+ <div class="row">
+ <div class="col-md-2">
+ <div class="doc-navigation">
+ <div class="doc-menu" role="navigation">
+ <div class="navbar-header">
+ <button type="button" class="pull-left navbar-toggle" data-toggle="collapse" data-target=".sidebar-navbar-collapse">
+ <span class="sr-only">Toggle navigation</span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ </button>
+ </div>
+ <div class="navbar-collapse collapse sidebar-navbar-collapse">
+ <form id="doc-search-form" class="navbar-form" action="../search.html" method="get" role="search">
+ <div class="form-group">
+ <input type="text" size="30" class="form-control input-sm" name="q" placeholder="Search docs">
+ <input type="hidden" name="check_keywords" value="yes" />
+ <input type="hidden" name="area" value="default" />
+ </div>
+ </form>
+
+
+
+ <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="../getting_started/index.html">Getting Started</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../architecture/index.html">Architecture</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../data_modeling/index.html">Data Modeling</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="index.html">The Cassandra Query Language (CQL)</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="definitions.html">Definitions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="types.html">Data Types</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ddl.html">Data Definition</a></li>
+<li class="toctree-l2"><a class="reference internal" href="dml.html">Data Manipulation</a></li>
+<li class="toctree-l2"><a class="reference internal" href="indexes.html">Secondary Indexes</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">Materialized Views</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="#create-materialized-view">CREATE MATERIALIZED VIEW</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#alter-materialized-view">ALTER MATERIALIZED VIEW</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#drop-materialized-view">DROP MATERIALIZED VIEW</a></li>
+</ul>
+</li>
+<li class="toctree-l2"><a class="reference internal" href="security.html">Security</a></li>
+<li class="toctree-l2"><a class="reference internal" href="functions.html">Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="json.html">JSON Support</a></li>
+<li class="toctree-l2"><a class="reference internal" href="triggers.html">Triggers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="appendices.html">Appendices</a></li>
+<li class="toctree-l2"><a class="reference internal" href="changes.html">Changes</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../configuration/index.html">Configuring Cassandra</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../operating/index.html">Operating Cassandra</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../tools/index.html">Cassandra Tools</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../troubleshooting/index.html">Troubleshooting</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../development/index.html">Cassandra Development</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../faq/index.html">Frequently Asked Questions</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../bugs.html">Reporting Bugs and Contributing</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../contactus.html">Contact us</a></li>
+</ul>
+
+
+
+ </div><!--/.nav-collapse -->
+ </div>
+ </div>
+ </div>
+ <div class="col-md-8">
+ <div class="content doc-content">
+ <div class="container">
+
+ <div class="section" id="materialized-views">
+<span id="id1"></span><h1>Materialized Views<a class="headerlink" href="#materialized-views" title="Permalink to this headline">¶</a></h1>
+<p>Materialized views names are defined by:</p>
+<pre>
+<strong id="grammar-token-view_name">view_name</strong> ::= re('[a-zA-Z_0-9]+')
+</pre>
+<div class="section" id="create-materialized-view">
+<span id="create-materialized-view-statement"></span><h2>CREATE MATERIALIZED VIEW<a class="headerlink" href="#create-materialized-view" title="Permalink to this headline">¶</a></h2>
+<p>You can create a materialized view on a table using a <code class="docutils literal"><span class="pre">CREATE</span> <span class="pre">MATERIALIZED</span> <span class="pre">VIEW</span></code> statement:</p>
+<pre>
+<strong id="grammar-token-create_materialized_view_statement">create_materialized_view_statement</strong> ::= CREATE MATERIALIZED VIEW [ IF NOT EXISTS ] <a class="reference internal" href="#grammar-token-view_name"><code class="xref docutils literal"><span class="pre">view_name</span></code></a> AS
+ <a class="reference internal" href="dml.html#grammar-token-select_statement"><code class="xref docutils literal"><span class="pre">select_statement</span></code></a>
+ PRIMARY KEY '(' <a class="reference internal" href="ddl.html#grammar-token-primary_key"><code class="xref docutils literal"><span class="pre">primary_key</span></code></a> ')'
+ WITH <a class="reference internal" href="ddl.html#grammar-token-table_options"><code class="xref docutils literal"><span class="pre">table_options</span></code></a>
+</pre>
+<p>For instance:</p>
+<div class="highlight-cql"><div class="highlight"><pre><span></span><span class="k">CREATE</span> <span class="k">MATERIALIZED</span> <span class="k">VIEW</span> <span class="n">monkeySpecies_by_population</span> <span class="k">AS</span>
+ <span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">monkeySpecies</span>
+ <span class="k">WHERE</span> <span class="n">population</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">species</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="n">population</span><span class="p">,</span> <span class="n">species</span><span class="p">)</span>
+ <span class="k">WITH</span> <span class="n">comment</span><span class="o">=</span><span class="s1">'Allow query by population instead of species'</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>The <code class="docutils literal"><span class="pre">CREATE</span> <span class="pre">MATERIALIZED</span> <span class="pre">VIEW</span></code> statement creates a new materialized view. Each such view is a set of <em>rows</em> which
+corresponds to rows which are present in the underlying, or base, table specified in the <code class="docutils literal"><span class="pre">SELECT</span></code> statement. A
+materialized view cannot be directly updated, but updates to the base table will cause corresponding updates in the
+view.</p>
+<p>Creating a materialized view has 3 main parts:</p>
+<ul class="simple">
+<li>The <a class="reference internal" href="#mv-select"><span class="std std-ref">select statement</span></a> that restrict the data included in the view.</li>
+<li>The <a class="reference internal" href="#mv-primary-key"><span class="std std-ref">primary key</span></a> definition for the view.</li>
+<li>The <a class="reference internal" href="#mv-options"><span class="std std-ref">options</span></a> for the view.</li>
+</ul>
+<p>Attempting to create an already existing materialized view will return an error unless the <code class="docutils literal"><span class="pre">IF</span> <span class="pre">NOT</span> <span class="pre">EXISTS</span></code> option is
+used. If it is used, the statement will be a no-op if the materialized view already exists.</p>
+<div class="section" id="mv-select-statement">
+<span id="mv-select"></span><h3>MV select statement<a class="headerlink" href="#mv-select-statement" title="Permalink to this headline">¶</a></h3>
+<p>The select statement of a materialized view creation defines which of the base table is included in the view. That
+statement is limited in a number of ways:</p>
+<ul class="simple">
+<li>the <a class="reference internal" href="dml.html#selection-clause"><span class="std std-ref">selection</span></a> is limited to those that only select columns of the base table. In other
+words, you can’t use any function (aggregate or not), casting, term, etc. Aliases are also not supported. You can
+however use <cite>*</cite> as a shortcut of selecting all columns. Further, <a class="reference internal" href="ddl.html#static-columns"><span class="std std-ref">static columns</span></a> cannot be
+included in a materialized view (which means <code class="docutils literal"><span class="pre">SELECT</span> <span class="pre">*</span></code> isn’t allowed if the base table has static columns).</li>
+<li>the <code class="docutils literal"><span class="pre">WHERE</span></code> clause have the following restrictions:<ul>
+<li>it cannot include any <a class="reference internal" href="definitions.html#grammar-token-bind_marker"><code class="xref std std-token docutils literal"><span class="pre">bind_marker</span></code></a>.</li>
+<li>the columns that are not part of the <em>base table</em> primary key can only be restricted by an <code class="docutils literal"><span class="pre">IS</span> <span class="pre">NOT</span> <span class="pre">NULL</span></code>
+restriction. No other restriction is allowed.</li>
+<li>as the columns that are part of the <em>view</em> primary key cannot be null, they must always be at least restricted by a
+<code class="docutils literal"><span class="pre">IS</span> <span class="pre">NOT</span> <span class="pre">NULL</span></code> restriction (or any other restriction, but they must have one).</li>
+</ul>
+</li>
+<li>it cannot have neither an <a class="reference internal" href="dml.html#ordering-clause"><span class="std std-ref">ordering clause</span></a>, nor a <a class="reference internal" href="dml.html#limit-clause"><span class="std std-ref">limit</span></a>, nor <a class="reference internal" href="dml.html#allow-filtering"><span class="std std-ref">ALLOW
+FILTERING</span></a>.</li>
+</ul>
+</div>
+<div class="section" id="mv-primary-key">
+<span id="id2"></span><h3>MV primary key<a class="headerlink" href="#mv-primary-key" title="Permalink to this headline">¶</a></h3>
+<p>A view must have a primary key and that primary key must conform to the following restrictions:</p>
+<ul class="simple">
+<li>it must contain all the primary key columns of the base table. This ensures that every row of the view correspond to
+exactly one row of the base table.</li>
+<li>it can only contain a single column that is not a primary key column in the base table.</li>
+</ul>
+<p>So for instance, give the following base table definition:</p>
+<div class="highlight-cql"><div class="highlight"><pre><span></span><span class="k">CREATE</span> <span class="k">TABLE</span> <span class="n">t</span> <span class="p">(</span>
+ <span class="n">k</span> <span class="nb">int</span><span class="p">,</span>
+ <span class="n">c1</span> <span class="nb">int</span><span class="p">,</span>
+ <span class="n">c2</span> <span class="nb">int</span><span class="p">,</span>
+ <span class="n">v1</span> <span class="nb">int</span><span class="p">,</span>
+ <span class="n">v2</span> <span class="nb">int</span><span class="p">,</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">)</span>
+<span class="p">)</span>
+</pre></div>
+</div>
+<p>then the following view definitions are allowed:</p>
+<div class="highlight-cql"><div class="highlight"><pre><span></span><span class="k">CREATE</span> <span class="k">MATERIALIZED</span> <span class="k">VIEW</span> <span class="n">mv1</span> <span class="k">AS</span>
+ <span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">t</span> <span class="k">WHERE</span> <span class="n">k</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c1</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c2</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="n">c1</span><span class="p">,</span> <span class="n">k</span><span class="p">,</span> <span class="n">c2</span><span class="p">)</span>
+
+<span class="k">CREATE</span> <span class="k">MATERIALIZED</span> <span class="k">VIEW</span> <span class="n">mv1</span> <span class="k">AS</span>
+ <span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">t</span> <span class="k">WHERE</span> <span class="n">k</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c1</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c2</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="n">v1</span><span class="p">,</span> <span class="n">k</span><span class="p">,</span> <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">)</span>
+</pre></div>
+</div>
+<p>but the following ones are <strong>not</strong> allowed:</p>
+<div class="highlight-cql"><div class="highlight"><pre><span></span><span class="c1">// Error: cannot include both v1 and v2 in the primary key as both are not in the base table primary key</span>
+<span class="k">CREATE</span> <span class="k">MATERIALIZED</span> <span class="k">VIEW</span> <span class="n">mv1</span> <span class="k">AS</span>
+ <span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">t</span> <span class="k">WHERE</span> <span class="n">k</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c1</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c2</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">v1</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="n">v1</span><span class="p">,</span> <span class="n">v2</span><span class="p">,</span> <span class="n">k</span><span class="p">,</span> <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">)</span>
+
+<span class="c1">// Error: must include k in the primary as it's a base table primary key column</span>
+<span class="k">CREATE</span> <span class="k">MATERIALIZED</span> <span class="k">VIEW</span> <span class="n">mv1</span> <span class="k">AS</span>
+ <span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">t</span> <span class="k">WHERE</span> <span class="n">c1</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">AND</span> <span class="n">c2</span> <span class="k">IS</span> <span class="k">NOT</span> <span class="k">NULL</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">)</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="mv-options">
+<span id="id3"></span><h3>MV options<a class="headerlink" href="#mv-options" title="Permalink to this headline">¶</a></h3>
+<p>A materialized view is internally implemented by a table and as such, creating a MV allows the <a class="reference internal" href="ddl.html#create-table-options"><span class="std std-ref">same options than
+creating a table</span></a>.</p>
+</div>
+</div>
+<div class="section" id="alter-materialized-view">
+<span id="alter-materialized-view-statement"></span><h2>ALTER MATERIALIZED VIEW<a class="headerlink" href="#alter-materialized-view" title="Permalink to this headline">¶</a></h2>
+<p>After creation, you can alter the options of a materialized view using the <code class="docutils literal"><span class="pre">ALTER</span> <span class="pre">MATERIALIZED</span> <span class="pre">VIEW</span></code> statement:</p>
+<pre>
+<strong id="grammar-token-alter_materialized_view_statement">alter_materialized_view_statement</strong> ::= ALTER MATERIALIZED VIEW <a class="reference internal" href="#grammar-token-view_name"><code class="xref docutils literal"><span class="pre">view_name</span></code></a> WITH <a class="reference internal" href="ddl.html#grammar-token-table_options"><code class="xref docutils literal"><span class="pre">table_options</span></code></a>
+</pre>
+<p>The options that can be updated are the same than at creation time and thus the <a class="reference internal" href="ddl.html#create-table-options"><span class="std std-ref">same than for tables</span></a>.</p>
+</div>
+<div class="section" id="drop-materialized-view">
+<span id="drop-materialized-view-statement"></span><h2>DROP MATERIALIZED VIEW<a class="headerlink" href="#drop-materialized-view" title="Permalink to this headline">¶</a></h2>
+<p>Dropping a materialized view users the <code class="docutils literal"><span class="pre">DROP</span> <span class="pre">MATERIALIZED</span> <span class="pre">VIEW</span></code> statement:</p>
+<pre>
+<strong id="grammar-token-drop_materialized_view_statement">drop_materialized_view_statement</strong> ::= DROP MATERIALIZED VIEW [ IF EXISTS ] <a class="reference internal" href="#grammar-token-view_name"><code class="xref docutils literal"><span class="pre">view_name</span></code></a>;
+</pre>
+<p>If the materialized view does not exists, the statement will return an error, unless <code class="docutils literal"><span class="pre">IF</span> <span class="pre">EXISTS</span></code> is used in which case
+the operation is a no-op.</p>
+</div>
+</div>
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