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Add INSERT/UPDATE/DELETE RETURNING, with basic docs and regression tests.

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plpgsql support to come later.  Along the way, convert execMain's
SELECT INTO support into a DestReceiver, in order to eliminate some ugly
special cases.

Jonah Harris and Tom Lane
This commit is contained in:
Tom Lane
2006-08-12 02:52:06 +00:00
parent 5c9e9c0c42
commit 7a3e30e608
35 changed files with 1472 additions and 422 deletions
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9
src/backend/commands/prepare.c
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@ -10,7 +10,7 @@
* Copyright (c) 2002-2006, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.59 2006/08/08 01:23:15 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.60 2006/08/12 02:52:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -447,6 +447,10 @@ FetchPreparedStatementResultDesc(PreparedStatement *stmt)
query = (Query *) linitial(stmt->query_list);
return ExecCleanTypeFromTL(query->targetList, false);
case PORTAL_ONE_RETURNING:
query = (Query *) linitial(stmt->query_list);
return ExecCleanTypeFromTL(query->returningList, false);
case PORTAL_UTIL_SELECT:
query = (Query *) linitial(stmt->query_list);
return UtilityTupleDescriptor(query->utilityStmt);
@ -472,6 +476,7 @@ PreparedStatementReturnsTuples(PreparedStatement *stmt)
switch (ChoosePortalStrategy(stmt->query_list))
{
case PORTAL_ONE_SELECT:
case PORTAL_ONE_RETURNING:
case PORTAL_UTIL_SELECT:
return true;
@ -499,6 +504,8 @@ FetchPreparedStatementTargetList(PreparedStatement *stmt)
if (strategy == PORTAL_ONE_SELECT)
return ((Query *) linitial(stmt->query_list))->targetList;
if (strategy == PORTAL_ONE_RETURNING)
return ((Query *) linitial(stmt->query_list))->returningList;
if (strategy == PORTAL_UTIL_SELECT)
{
Node *utilityStmt;