From d4fc4ac4c7a96434e5baa8702ead10f7dc693014 Mon Sep 17 00:00:00 2001 From: Alvaro Herrera Date: Mon, 28 Nov 2005 13:35:09 +0000 Subject: [PATCH] Set a snapshot before running analyze on a single table, to avoid a crash when analyzing tables with expressional indexes. Per report from Frank van Vugt. --- src/backend/postmaster/autovacuum.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c index c3376256f1..4140df6553 100644 --- a/src/backend/postmaster/autovacuum.c +++ b/src/backend/postmaster/autovacuum.c @@ -10,7 +10,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.6 2005/11/22 18:17:17 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.7 2005/11/28 13:35:09 alvherre Exp $ * *------------------------------------------------------------------------- */ @@ -898,6 +898,14 @@ autovacuum_do_vac_analyze(List *relids, bool dovacuum, bool doanalyze, vacstmt->relation = NULL; /* all tables, or not used if relids != NIL */ vacstmt->va_cols = NIL; + /* + * Functions in indexes may want a snapshot set. Note we only need + * to do this in limited cases, because it'll be done in vacuum() + * otherwise. + */ + if (doanalyze && !dovacuum && relids != NIL) + ActiveSnapshot = CopySnapshot(GetTransactionSnapshot()); + vacuum(vacstmt, relids); pfree(vacstmt); -- 2.40.0