When I exec a sql SELECT INTO without columns or * by mistake, it succeeds:
select * from t1; a | b ---+--- 1 | 2 2 | 3 3 | 4 (3 rows)
select into t2 from t1; SELECT 3
\pset null '(null)' Null display is "(null)".
select * from t2; -- (3 rows)
It seems that t2 has empty rows but not null. Is it an expected behavior? And what’s the semantic of SELECT INTO without any columns? I also see lots of that SELECT INTO in out test cases like: -- SELECT INTO doesn't support USING SELECT INTO tableam_tblselectinto_heap2 USING heap2 FROM tableam_tbl_heap2;
