diff options
Diffstat (limited to 'src/backend/commands/matview.c')
| -rw-r--r-- | src/backend/commands/matview.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/backend/commands/matview.c b/src/backend/commands/matview.c index e87bdac2851..d82bee57d92 100644 --- a/src/backend/commands/matview.c +++ b/src/backend/commands/matview.c @@ -795,9 +795,12 @@ refresh_by_match_merge(Oid matviewOid, Oid tempOid, Oid relowner, * * ExecRefreshMatView() checks that after taking the exclusive lock on the * matview. So at least one unique index is guaranteed to exist here - * because the lock is still being held; so an Assert seems sufficient. + * because the lock is still being held. (One known exception is if a + * function called as part of refreshing the matview drops the index. + * That's a pretty silly thing to do.) */ - Assert(foundUniqueIndex); + if (!foundUniqueIndex) + elog(ERROR, "could not find suitable unique index on materialized view"); appendStringInfoString(&querybuf, " AND newdata.* OPERATOR(pg_catalog.*=) mv.*) " |