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Posted to commits@drill.apache.org by br...@apache.org on 2016/08/30 22:29:17 UTC
[02/17] drill git commit: Doc updates for 1.8 - add support for
multi-byte delimiter support to plugin configuration basics
Doc updates for 1.8 - add support for multi-byte delimiter support to plugin configuration basics
Project: http://git-wip-us.apache.org/repos/asf/drill/repo
Commit: http://git-wip-us.apache.org/repos/asf/drill/commit/640b2c4e
Tree: http://git-wip-us.apache.org/repos/asf/drill/tree/640b2c4e
Diff: http://git-wip-us.apache.org/repos/asf/drill/diff/640b2c4e
Branch: refs/heads/gh-pages
Commit: 640b2c4e85caf91590fd8fabb5335ce52e3e3d8a
Parents: 4002939
Author: Bridget Bevens <bb...@maprtech.com>
Authored: Thu Aug 4 09:47:21 2016 -0700
Committer: Bridget Bevens <bb...@maprtech.com>
Committed: Thu Aug 4 09:47:21 2016 -0700
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_docs/connect-a-data-source/035-plugin-configuration-basics.md | 6 +++---
_docs/sql-reference/sql-commands/055-drop-table.md | 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
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http://git-wip-us.apache.org/repos/asf/drill/blob/640b2c4e/_docs/connect-a-data-source/035-plugin-configuration-basics.md
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diff --git a/_docs/connect-a-data-source/035-plugin-configuration-basics.md b/_docs/connect-a-data-source/035-plugin-configuration-basics.md
index 3cb542e..0a9de00 100644
--- a/_docs/connect-a-data-source/035-plugin-configuration-basics.md
+++ b/_docs/connect-a-data-source/035-plugin-configuration-basics.md
@@ -1,6 +1,6 @@
---
title: "Plugin Configuration Basics"
-date:
+date: 2016-08-04 16:47:22 UTC
parent: "Storage Plugin Configuration"
---
When you add or update storage plugin configurations on one Drill node in a
@@ -103,9 +103,9 @@ The following table describes the attributes you configure for storage plugins i
</tr>
<tr>
<td>"formats" . . . "delimiter"</td>
- <td>"\t"<br>","</td>
+ <td>"\n"<br>"\r"<br>"\t"<br>"\r\n"<br>","</td>
<td>format-dependent</td>
- <td>Sequence of one or more characters that serve as a record separator in a delimited text file, such as CSV. Use a 4-digit hex code syntax \uXXXX for a non-printable delimiter. </td>
+ <td>Sequence of one or more characters that signifies the end of a line of text and the start of a new line in a delimited text file, such as CSV. Drill treats \n as the standard line delimiter. As of Drill 1.8, Drill supports multi-byte delimiters, such as \r\n. Use a 4-digit hex code syntax \uXXXX for a non-printable delimiter. </td>
</tr>
<tr>
<td>"formats" . . . "quote"</td>
http://git-wip-us.apache.org/repos/asf/drill/blob/640b2c4e/_docs/sql-reference/sql-commands/055-drop-table.md
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diff --git a/_docs/sql-reference/sql-commands/055-drop-table.md b/_docs/sql-reference/sql-commands/055-drop-table.md
index 6857d25..35501b8 100644
--- a/_docs/sql-reference/sql-commands/055-drop-table.md
+++ b/_docs/sql-reference/sql-commands/055-drop-table.md
@@ -1,6 +1,6 @@
---
title: "DROP TABLE"
-date: 2016-08-04 00:23:10 UTC
+date: 2016-08-04 16:47:22 UTC
parent: "SQL Commands"
---
@@ -42,7 +42,7 @@ A unique directory or file name, optionally prefaced by a storage plugin name, s
* When user impersonation is not enabled in Drill, Drill accesses the file system as the user running the Drillbit. This user is typically a super user who has permission to delete most files. In this scenario, use the DROP TABLE command with caution to avoid deleting critical files and directories.
###Views
-* Views are independent of tables. Views that reference dropped tables become invalid. You must explicitly drop any view that references a dropped table using the [DROP VIEW command]({{ site.baseurl }}/docs/drop-view/).
+* Views are independent of tables. If you drop a base table on which views were defined, the views become invalid, but users can still access them. You must explicitly drop any view that references a dropped table using the [DROP VIEW command]({{ site.baseurl }}/docs/drop-view/).
###Concurrency
* Concurrency occurs when two processes try to access and/or change data at the same time. Currently, Drill does not have a mechanism in place, such as read locks on files, to address concurrency issues. For example, if one user runs a query that references a table that another user simultaneously issues the DROP TABLE command against, there is no mechanism in place to prevent a collision of the two processes. In such a scenario, Drill may return partial query results or a system error to the user running the query when the table is dropped.