diff options
Diffstat (limited to 'src/backend/parser/parse_relation.c')
| -rw-r--r-- | src/backend/parser/parse_relation.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/backend/parser/parse_relation.c b/src/backend/parser/parse_relation.c index 053ae02c9fe..f7e11f969c0 100644 --- a/src/backend/parser/parse_relation.c +++ b/src/backend/parser/parse_relation.c @@ -728,6 +728,16 @@ scanRTEForColumn(ParseState *pstate, RangeTblEntry *rte, const char *colname, colname), parser_errposition(pstate, location))); + /* In MERGE WHEN AND condition, no system column is allowed except tableOid or OID */ + if (pstate->p_expr_kind == EXPR_KIND_MERGE_WHEN_AND && + attnum < InvalidAttrNumber && + !(attnum == TableOidAttributeNumber || attnum == ObjectIdAttributeNumber)) + ereport(ERROR, + (errcode(ERRCODE_INVALID_COLUMN_REFERENCE), + errmsg("system column \"%s\" reference in WHEN AND condition is invalid", + colname), + parser_errposition(pstate, location))); + if (attnum != InvalidAttrNumber) { /* now check to see if column actually is defined */ |