diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-09 13:38:24 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-09 13:38:24 -0400 |
| commit | d23ac62afa646b7073a7f0db0a137308459a263b (patch) | |
| tree | 46553e634f9d88fe207ea8ce0e5bf23ac494363b /src/test | |
| parent | d0a02bdb8c2576b5aa607f127320e444080bd579 (diff) | |
Avoid creating a RESULT RTE that's marked LATERAL.
Commit 7266d0997 added code to pull up simple constant function
results, converting the RTE_FUNCTION RTE to a dummy RTE_RESULT
RTE since it no longer need be scanned. But I forgot to clear
the LATERAL flag if the RTE has it set. If the function reduced
to a constant, it surely contains no lateral references so this
simplification is logically OK. It's needed because various other
places will Assert that RESULT RTEs aren't LATERAL.
Per bug #17097 from Yaoguang Chen. Back-patch to v13 where the
faulty code came in.
Discussion: https://postgr.es/m/17097-3372ef9f798fc94f@postgresql.org
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/regress/expected/join.out | 8 | ||||
| -rw-r--r-- | src/test/regress/sql/join.sql | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/src/test/regress/expected/join.out b/src/test/regress/expected/join.out index fec0325e73e..19cd0569876 100644 --- a/src/test/regress/expected/join.out +++ b/src/test/regress/expected/join.out @@ -3470,6 +3470,14 @@ select unique1 from tenk1, lateral f_immutable_int4(1) x where x = unique1; (2 rows) explain (costs off) +select unique1 from tenk1, lateral f_immutable_int4(1) x where x in (select 17); + QUERY PLAN +-------------------------- + Result + One-Time Filter: false +(2 rows) + +explain (costs off) select unique1, x from tenk1 join f_immutable_int4(1) x on unique1 = x; QUERY PLAN ---------------------------------------------- diff --git a/src/test/regress/sql/join.sql b/src/test/regress/sql/join.sql index 7f866c603b8..2a0e2d12d83 100644 --- a/src/test/regress/sql/join.sql +++ b/src/test/regress/sql/join.sql @@ -1114,6 +1114,9 @@ explain (costs off) select unique1 from tenk1, lateral f_immutable_int4(1) x where x = unique1; explain (costs off) +select unique1 from tenk1, lateral f_immutable_int4(1) x where x in (select 17); + +explain (costs off) select unique1, x from tenk1 join f_immutable_int4(1) x on unique1 = x; explain (costs off) |