diff options
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/regress/expected/join.out | 72 | ||||
| -rw-r--r-- | src/test/regress/sql/join.sql | 25 |
2 files changed, 96 insertions, 1 deletions
diff --git a/src/test/regress/expected/join.out b/src/test/regress/expected/join.out index e10405ae89a..6c3d8fd7a04 100644 --- a/src/test/regress/expected/join.out +++ b/src/test/regress/expected/join.out @@ -3385,7 +3385,7 @@ select t1.* from Output: t1.f1 Hash Cond: (i8.q2 = i4.f1) -> Nested Loop Left Join - Output: i8.q2, t1.f1 + Output: t1.f1, i8.q2 Join Filter: (t1.f1 = '***'::text) -> Seq Scan on public.text_tbl t1 Output: t1.f1 @@ -3433,6 +3433,76 @@ select t1.* from hi de ho neighbor (2 rows) +explain (verbose, costs off) +select t1.* from + text_tbl t1 + left join (select *, '***'::text as d1 from int8_tbl i8b1) b1 + left join int8_tbl i8 + left join (select *, null::int as d2 from int8_tbl i8b2, int4_tbl i4b2 + where q1 = f1) b2 + on (i8.q1 = b2.q1) + on (b2.d2 = b1.q2) + on (t1.f1 = b1.d1) + left join int4_tbl i4 + on (i8.q2 = i4.f1); + QUERY PLAN +---------------------------------------------------------------------------- + Hash Left Join + Output: t1.f1 + Hash Cond: (i8.q2 = i4.f1) + -> Nested Loop Left Join + Output: t1.f1, i8.q2 + Join Filter: (t1.f1 = '***'::text) + -> Seq Scan on public.text_tbl t1 + Output: t1.f1 + -> Materialize + Output: i8.q2 + -> Hash Right Join + Output: i8.q2 + Hash Cond: ((NULL::integer) = i8b1.q2) + -> Hash Right Join + Output: i8.q2, (NULL::integer) + Hash Cond: (i8b2.q1 = i8.q1) + -> Hash Join + Output: i8b2.q1, NULL::integer + Hash Cond: (i8b2.q1 = i4b2.f1) + -> Seq Scan on public.int8_tbl i8b2 + Output: i8b2.q1, i8b2.q2 + -> Hash + Output: i4b2.f1 + -> Seq Scan on public.int4_tbl i4b2 + Output: i4b2.f1 + -> Hash + Output: i8.q1, i8.q2 + -> Seq Scan on public.int8_tbl i8 + Output: i8.q1, i8.q2 + -> Hash + Output: i8b1.q2 + -> Seq Scan on public.int8_tbl i8b1 + Output: i8b1.q2 + -> Hash + Output: i4.f1 + -> Seq Scan on public.int4_tbl i4 + Output: i4.f1 +(37 rows) + +select t1.* from + text_tbl t1 + left join (select *, '***'::text as d1 from int8_tbl i8b1) b1 + left join int8_tbl i8 + left join (select *, null::int as d2 from int8_tbl i8b2, int4_tbl i4b2 + where q1 = f1) b2 + on (i8.q1 = b2.q1) + on (b2.d2 = b1.q2) + on (t1.f1 = b1.d1) + left join int4_tbl i4 + on (i8.q2 = i4.f1); + f1 +------------------- + doh! + hi de ho neighbor +(2 rows) + -- -- test ability to push constants through outer join clauses -- diff --git a/src/test/regress/sql/join.sql b/src/test/regress/sql/join.sql index 12cfa6defce..992e673c12e 100644 --- a/src/test/regress/sql/join.sql +++ b/src/test/regress/sql/join.sql @@ -1049,6 +1049,31 @@ select t1.* from left join int4_tbl i4 on (i8.q2 = i4.f1); +explain (verbose, costs off) +select t1.* from + text_tbl t1 + left join (select *, '***'::text as d1 from int8_tbl i8b1) b1 + left join int8_tbl i8 + left join (select *, null::int as d2 from int8_tbl i8b2, int4_tbl i4b2 + where q1 = f1) b2 + on (i8.q1 = b2.q1) + on (b2.d2 = b1.q2) + on (t1.f1 = b1.d1) + left join int4_tbl i4 + on (i8.q2 = i4.f1); + +select t1.* from + text_tbl t1 + left join (select *, '***'::text as d1 from int8_tbl i8b1) b1 + left join int8_tbl i8 + left join (select *, null::int as d2 from int8_tbl i8b2, int4_tbl i4b2 + where q1 = f1) b2 + on (i8.q1 = b2.q1) + on (b2.d2 = b1.q2) + on (t1.f1 = b1.d1) + left join int4_tbl i4 + on (i8.q2 = i4.f1); + -- -- test ability to push constants through outer join clauses -- |