diff options
Diffstat (limited to 'src/backend/commands/prepare.c')
| -rw-r--r-- | src/backend/commands/prepare.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/src/backend/commands/prepare.c b/src/backend/commands/prepare.c index 2c284cb9be0..fe1a8532f07 100644 --- a/src/backend/commands/prepare.c +++ b/src/backend/commands/prepare.c @@ -10,7 +10,7 @@ * Copyright (c) 2002-2007, PostgreSQL Global Development Group * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.70 2007/03/13 00:33:39 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.71 2007/04/12 06:53:46 neilc Exp $ * *------------------------------------------------------------------------- */ @@ -575,7 +575,10 @@ FetchPreparedStatementTargetList(PreparedStatement *stmt) void DeallocateQuery(DeallocateStmt *stmt) { - DropPreparedStatement(stmt->name, true); + if (stmt->name) + DropPreparedStatement(stmt->name, true); + else + DropAllPreparedStatements(); } /* @@ -602,6 +605,31 @@ DropPreparedStatement(const char *stmt_name, bool showError) } /* + * Drop all cached statements. + */ +void +DropAllPreparedStatements(void) +{ + HASH_SEQ_STATUS seq; + PreparedStatement *entry; + + /* nothing cached */ + if (!prepared_queries) + return; + + /* walk over cache */ + hash_seq_init(&seq, prepared_queries); + while ((entry = hash_seq_search(&seq)) != NULL) + { + /* Release the plancache entry */ + DropCachedPlan(entry->plansource); + + /* Now we can remove the hash table entry */ + hash_search(prepared_queries, entry->stmt_name, HASH_REMOVE, NULL); + } +} + +/* * Implements the 'EXPLAIN EXECUTE' utility statement. */ void |