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Add RESET CONNECTION, to reset all aspects of a session.

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Hans-J?rgen Sch?nig
This commit is contained in:
Bruce Momjian
2006-04-25 14:09:21 +00:00
parent 11fbdf2f25
commit 6378fdd971
12 changed files with 128 additions and 20 deletions
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27
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 1.50 2006/04/22 01:25:58 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.51 2006/04/25 14:09:11 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -33,7 +33,6 @@
#include "utils/hsearch.h"
#include "utils/memutils.h"
/*
* The hash table in which prepared queries are stored. This is
* per-backend: query plans are not shared between backends.
@ -547,6 +546,30 @@ DeallocateQuery(DeallocateStmt *stmt)
DropPreparedStatement(stmt->name, true);
}
/*
* Remove all prepared plans from the backend.
*/
void
DropAllPreparedStatements(void)
{
PreparedStatement *prep_statement;
HASH_SEQ_STATUS status;
if (!prepared_queries)
return;
hash_seq_init(&status, prepared_queries);
while ((prep_statement = (PreparedStatement *) hash_seq_search(&status)))
{
DropDependentPortals(prep_statement->context);
/* Flush the context holding the subsidiary data */
MemoryContextDelete(prep_statement->context);
hash_search(prepared_queries, prep_statement->stmt_name, HASH_REMOVE, NULL);
}
}
/*
* Internal version of DEALLOCATE
*