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Diffstat (limited to 'src/backend/utils/adt/ruleutils.c')
| -rw-r--r-- | src/backend/utils/adt/ruleutils.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c index dc17685563b..21aa6718c84 100644 --- a/src/backend/utils/adt/ruleutils.c +++ b/src/backend/utils/adt/ruleutils.c @@ -5146,23 +5146,19 @@ get_rule_expr(Node *node, deparse_context *context, * boolexpr WHEN TRUE THEN ...", then the optimizer's * simplify_boolean_equality() may have reduced this * to just "CaseTestExpr" or "NOT CaseTestExpr", for - * which we have to show "TRUE" or "FALSE". Also, - * depending on context the original CaseTestExpr - * might have been reduced to a Const (but we won't - * see "WHEN Const"). We have also to consider the - * possibility that an implicit coercion was inserted - * between the CaseTestExpr and the operator. + * which we have to show "TRUE" or "FALSE". We have + * also to consider the possibility that an implicit + * coercion was inserted between the CaseTestExpr and + * the operator. */ if (IsA(w, OpExpr)) { List *args = ((OpExpr *) w)->args; - Node *lhs; Node *rhs; Assert(list_length(args) == 2); - lhs = strip_implicit_coercions(linitial(args)); - Assert(IsA(lhs, CaseTestExpr) || - IsA(lhs, Const)); + Assert(IsA(strip_implicit_coercions(linitial(args)), + CaseTestExpr)); rhs = (Node *) lsecond(args); get_rule_expr(rhs, context, false); } |