Re: Support run-time partition pruning for hash join

Hello Richard,

02.11.2023 14:19, Richard Guo wrote:
>
> However, the cfbot indicates that there are test cases that fail on
> FreeBSD [1] (no failure on other platforms).  So I set up a FreeBSD-13
> locally but just cannot reproduce the failure.  I must be doing
> something wrong.  Can anyone give me some hints or suggestions?
>
> FYI. The failure looks like:
>
>  explain (costs off)
>    select p2.a, p1.c from permtest_parent p1 inner join permtest_parent p2
>    on p1.a = p2.a and left(p1.c, 3) ~ 'a1$';
> -                     QUERY PLAN
> -----------------------------------------------------
> - Hash Join
> -   Hash Cond: (p2.a = p1.a)
> -   ->  Seq Scan on permtest_grandchild p2
> -   ->  Hash
> -         ->  Seq Scan on permtest_grandchild p1
> -               Filter: ("left"(c, 3) ~ 'a1$'::text)
> -(6 rows)
> -
> +ERROR:  unrecognized node type: 1130127496

I've managed to reproduce that failure on my Ubuntu with:
CPPFLAGS="-Og -DWRITE_READ_PARSE_PLAN_TREES -DCOPY_PARSE_PLAN_TREES" ./configure ... make check
...
 SELECT t1, t2 FROM prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
-                    QUERY PLAN
---------------------------------------------------
- Sort
-   Sort Key: t1.a, t2.b
-   ->  Hash Right Join
-         Hash Cond: (t2.b = t1.a)
-         ->  Append
-               ->  Seq Scan on prt2_p1 t2_1
-               ->  Seq Scan on prt2_p2 t2_2
-               ->  Seq Scan on prt2_p3 t2_3
-         ->  Hash
-               ->  Append
-                     ->  Seq Scan on prt1_p1 t1_1
-                           Filter: (b = 0)
-                     ->  Seq Scan on prt1_p2 t1_2
-                           Filter: (b = 0)
-                     ->  Seq Scan on prt1_p3 t1_3
-                           Filter: (b = 0)
-(16 rows)
-
+ERROR:  unrecognized node type: -1465804424
...

As far as I can see from https://cirrus-ci.com/task/6642692659085312,
the FreeBSD host has the following CPPFLAGS specified:
-DRELCACHE_FORCE_RELEASE
-DCOPY_PARSE_PLAN_TREES
-DWRITE_READ_PARSE_PLAN_TREES
-DRAW_EXPRESSION_COVERAGE_TEST
-DENFORCE_REGRESSION_TEST_NAME_RESTRICTIONS

Best regards,
Alexander