diff options
Diffstat (limited to 'src/backend/optimizer/util/plancat.c')
| -rw-r--r-- | src/backend/optimizer/util/plancat.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c index 70b3d7d43f5..21dd342593a 100644 --- a/src/backend/optimizer/util/plancat.c +++ b/src/backend/optimizer/util/plancat.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.136 2007/05/31 16:57:34 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.137 2007/09/20 17:56:31 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -19,6 +19,7 @@ #include "access/genam.h" #include "access/heapam.h" +#include "access/transam.h" #include "catalog/pg_inherits.h" #include "nodes/makefuncs.h" #include "optimizer/clauses.h" @@ -164,6 +165,20 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent, continue; } + /* + * If the index is valid, but cannot yet be used, ignore it; + * but mark the plan we are generating as transient. + * See src/backend/access/heap/README.HOT for discussion. + */ + if (index->indcheckxmin && + !TransactionIdPrecedes(HeapTupleHeaderGetXmin(indexRelation->rd_indextuple->t_data), + TransactionXmin)) + { + root->glob->transientPlan = true; + index_close(indexRelation, NoLock); + continue; + } + info = makeNode(IndexOptInfo); info->indexoid = index->indexrelid; |