diff options
Diffstat (limited to 'src/backend/optimizer/util/clauses.c')
| -rw-r--r-- | src/backend/optimizer/util/clauses.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/backend/optimizer/util/clauses.c b/src/backend/optimizer/util/clauses.c index da258968b8c..948c2bf06db 100644 --- a/src/backend/optimizer/util/clauses.c +++ b/src/backend/optimizer/util/clauses.c @@ -3296,12 +3296,19 @@ eval_const_expressions_mutator(Node *node, fselect->resulttype, fselect->resulttypmod, fselect->resultcollid)) - return (Node *) makeVar(((Var *) arg)->varno, - fselect->fieldnum, - fselect->resulttype, - fselect->resulttypmod, - fselect->resultcollid, - ((Var *) arg)->varlevelsup); + { + Var *newvar; + + newvar = makeVar(((Var *) arg)->varno, + fselect->fieldnum, + fselect->resulttype, + fselect->resulttypmod, + fselect->resultcollid, + ((Var *) arg)->varlevelsup); + /* New Var is nullable by same rels as the old one */ + newvar->varnullingrels = ((Var *) arg)->varnullingrels; + return (Node *) newvar; + } } if (arg && IsA(arg, RowExpr)) { |