diff options
Diffstat (limited to 'src/backend/commands/explain.c')
| -rw-r--r-- | src/backend/commands/explain.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c index d3dfe9edf7e..af3b5fb0f5b 100644 --- a/src/backend/commands/explain.c +++ b/src/backend/commands/explain.c @@ -7,7 +7,7 @@ * Portions Copyright (c) 1994-5, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.135 2005/04/25 01:30:12 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.136 2005/06/03 23:05:28 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -100,6 +100,12 @@ ExplainQuery(ExplainStmt *stmt, DestReceiver *dest) } else { + /* + * Must acquire locks in case we didn't come fresh from the parser. + * XXX this also scribbles on query, another reason for copyObject + */ + AcquireRewriteLocks(query); + /* Rewrite through rule system */ rewritten = QueryRewrite(query); @@ -166,6 +172,8 @@ ExplainOneQuery(Query *query, ExplainStmt *stmt, TupOutputState *tstate) cursorOptions = dcstmt->options; /* Still need to rewrite cursor command */ Assert(query->commandType == CMD_SELECT); + /* get locks (we assume ExplainQuery already copied tree) */ + AcquireRewriteLocks(query); rewritten = QueryRewrite(query); if (list_length(rewritten) != 1) elog(ERROR, "unexpected rewrite result"); |