diff options
| -rw-r--r-- | src/backend/executor/execQual.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/backend/executor/execQual.c b/src/backend/executor/execQual.c index 330d889eba9..4ea0cbadadb 100644 --- a/src/backend/executor/execQual.c +++ b/src/backend/executor/execQual.c @@ -4257,16 +4257,20 @@ ExecEvalArrayCoerceExpr(ArrayCoerceExprState *astate, /* ---------------------------------------------------------------- * ExecEvalCurrentOfExpr * - * The planner must convert CURRENT OF into a TidScan qualification. - * So, we have to be able to do ExecInitExpr on a CurrentOfExpr, - * but we shouldn't ever actually execute it. + * The planner should convert CURRENT OF into a TidScan qualification, or some + * other special handling in a ForeignScan node. So we have to be able to do + * ExecInitExpr on a CurrentOfExpr, but we shouldn't ever actually execute it. + * If we get here, we suppose we must be dealing with CURRENT OF on a foreign + * table whose FDW doesn't handle it, and complain accordingly. * ---------------------------------------------------------------- */ static Datum ExecEvalCurrentOfExpr(ExprState *exprstate, ExprContext *econtext, bool *isNull, ExprDoneCond *isDone) { - elog(ERROR, "CURRENT OF cannot be executed"); + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("WHERE CURRENT OF is not supported for this table type"))); return 0; /* keep compiler quiet */ } |