Fix typmod exposed for scalar function in FROM, too.

tglsfdc · tglsfdc · commit 915c04f091f1 · 2020-01-02T14:02:55.000-05:00
On further reflection about commit 4d02eb0, it occurs to me that expandRTE() had better agree with what addRangeTableEntryForFunction() is doing. So teach that about functions possibly having typmods, too.
diff --git a/src/backend/parser/parse_relation.c b/src/backend/parser/parse_relation.c
@@ -2616,7 +2616,8 @@ expandRTE(RangeTblEntry *rte, int rtindex, int sublevels_up,
 							Var		   *varnode;
 
 							varnode = makeVar(rtindex, atts_done + 1,
-											  funcrettype, -1,
+											  funcrettype,
+											  exprTypmod(rtfunc->funcexpr),
 											  exprCollation(rtfunc->funcexpr),
 											  sublevels_up);
 							varnode->location = location;
