diff options
Diffstat (limited to 'src/backend/commands/indexcmds.c')
| -rw-r--r-- | src/backend/commands/indexcmds.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c index fdfa6ca4f5c..1afe02bd85a 100644 --- a/src/backend/commands/indexcmds.c +++ b/src/backend/commands/indexcmds.c @@ -489,6 +489,10 @@ DefineIndex(Oid relationId, accessMethodId = HeapTupleGetOid(tuple); accessMethodForm = (Form_pg_am) GETSTRUCT(tuple); + if (strcmp(accessMethodName, "hash") == 0) + ereport(WARNING, + (errmsg("hash indexes are not WAL-logged so they are not crash-safe and cannot be used on streaming standbys"))); + if (stmt->unique && !accessMethodForm->amcanunique) ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), |