diff options
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.c')
| -rw-r--r-- | contrib/postgres_fdw/postgres_fdw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c index 687b87b8604..49dfe2c5edb 100644 --- a/contrib/postgres_fdw/postgres_fdw.c +++ b/contrib/postgres_fdw/postgres_fdw.c @@ -801,6 +801,9 @@ postgresGetForeignPlan(PlannerInfo *root, * The extra roundtrips involved in trying to duplicate the local * semantics exactly don't seem worthwhile (see also comments for * RowMarkType). + * + * Note: because we actually run the query as a cursor, this assumes that + * DECLARE CURSOR ... FOR UPDATE is supported, which it isn't before 8.3. */ if (baserel->relid == root->parse->resultRelation && (root->parse->commandType == CMD_UPDATE || |