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Allow EXPLAIN on CREATE TABLE AS.

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This commit is contained in:
Peter Eisentraut 2008-10-27 08:47:14 +00:00
parent e5da8e15ba
commit 5163b94e6f
2 changed files with 8 additions and 5 deletions
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10
doc/src/sgml/ref/explain.sgml
View File

@ -1,5 +1,5 @@
<!-- <!--
$PostgreSQL: pgsql/doc/src/sgml/ref/explain.sgml,v 1.42 2008/04/18 01:42:17 tgl Exp $ $PostgreSQL: pgsql/doc/src/sgml/ref/explain.sgml,v 1.43 2008/10/27 08:47:13 petere Exp $
PostgreSQL documentation PostgreSQL documentation
--> -->
@ -78,7 +78,8 @@ EXPLAIN [ ANALYZE ] [ VERBOSE ] <replaceable class="parameter">statement</replac
statement will happen as usual. If you wish to use statement will happen as usual. If you wish to use
<command>EXPLAIN ANALYZE</command> on an <command>EXPLAIN ANALYZE</command> on an
<command>INSERT</command>, <command>UPDATE</command>, <command>INSERT</command>, <command>UPDATE</command>,
<command>DELETE</command>, or <command>EXECUTE</command> statement <command>DELETE</command>, <command>CREATE TABLE AS</command>,
or <command>EXECUTE</command> statement
without letting the command affect your data, use this approach: without letting the command affect your data, use this approach:
<programlisting> <programlisting>
BEGIN; BEGIN;
@ -116,8 +117,9 @@ ROLLBACK;
<listitem> <listitem>
<para> <para>
Any <command>SELECT</>, <command>INSERT</>, <command>UPDATE</>, Any <command>SELECT</>, <command>INSERT</>, <command>UPDATE</>,
<command>DELETE</>, <command>VALUES</>, <command>EXECUTE</>, or <command>DELETE</>, <command>VALUES</>, <command>EXECUTE</>,
<command>DECLARE</> statement, whose execution plan you wish to see. <command>DECLARE</>, or <command>CREATE TABLE AS</command>
statement, whose execution plan you wish to see.
</para> </para>
</listitem> </listitem>
</varlistentry> </varlistentry>

3
src/backend/parser/gram.y
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@ -11,7 +11,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.628 2008/10/22 11:00:34 petere Exp $ * $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.629 2008/10/27 08:47:14 petere Exp $
* *
* HISTORY * HISTORY
* AUTHOR DATE MAJOR EVENT * AUTHOR DATE MAJOR EVENT
@ -5898,6 +5898,7 @@ ExplainableStmt:
| UpdateStmt | UpdateStmt
| DeleteStmt | DeleteStmt
| DeclareCursorStmt | DeclareCursorStmt
| CreateAsStmt
| ExecuteStmt /* by default all are $$=$1 */ | ExecuteStmt /* by default all are $$=$1 */
; ;