Fix deparse for CREATE DOMAIN ... NOT NULL

The parser now adds a single entry in the `keys` array, with the string `value`.
pganalyze · Sep 26, 2024 · 6ca22b7 · 6ca22b7
1 parent 36888a6
commit 6ca22b7
Showing 1 changed file with 12 additions and 3 deletions.
diff --git a/src/postgres_deparse.c b/src/postgres_deparse.c
@@ -4863,9 +4863,18 @@ static void deparseConstraint(StringInfo str, Constraint *constraint)
 
  if (list_length(constraint->keys) > 0)
  {
- appendStringInfoChar(str, '(');
- deparseColumnList(str, constraint->keys);
- appendStringInfoString(str, ") ");
+ bool valueOnly = false;
+
+ if (list_length(constraint->keys) == 1) {
+ Node* firstKey = constraint->keys->elements[0].ptr_value;
+ valueOnly = IsA(firstKey, String) && !strcmp("value", ((String*)firstKey)->sval);
+ }
+
+ if (!valueOnly) {
+ appendStringInfoChar(str, '(');
+ deparseColumnList(str, constraint->keys);
+ appendStringInfoString(str, ") ");
+ }
  }
 
  if (list_length(constraint->fk_attrs) > 0)