diff options
Diffstat (limited to 'src/backend/optimizer')
| -rw-r--r-- | src/backend/optimizer/util/plancat.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c index ba58251919b..ed76fe8fb8c 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 1.96 2004/08/29 05:06:44 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.97 2004/10/01 17:11:50 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -90,7 +90,14 @@ get_relation_info(Oid relationObjectId, RelOptInfo *rel) int i; int16 amorderstrategy; - /* Extract info from the relation descriptor for the index */ + /* + * Extract info from the relation descriptor for the index. + * + * Note that we take no lock on the index; we assume our lock on + * the parent table will protect the index's schema information. + * When and if the executor actually uses the index, it will take + * a lock as needed to protect the access to the index contents. + */ indexRelation = index_open(indexoid); index = indexRelation->rd_index; |