Re: [HACKERS] Adding support for Default partition in partitioning

Hi,

I have applied v27 patches and while testing got below observation.

Observation: in below partition table, d1 constraints not allowing NULL to be inserted in b column
but I am able to insert it.

steps to reproduce:
create table d0 (a int, b int) partition by range(a,b);
create table d1 partition of d0 for values from (0,0) to (maxvalue,maxvalue);

postgres=# insert into d0 values (0,null);
INSERT 0 1
postgres=# \d+ d1
                                    Table "public.d1"
 Column |  Type   | Collation | Nullable | Default | Storage | Stats target | Description
--------+---------+-----------+----------+---------+---------+--------------+-------------
 a      | integer |           |          |         | plain   |              |
 b      | integer |           |          |         | plain   |              |
Partition of: d0 FOR VALUES FROM (0, 0) TO (MAXVALUE, MAXVALUE)
Partition constraint: ((a IS NOT NULL) AND (b IS NOT NULL) AND ((a > 0) OR ((a = 0) AND (b >= 0))))

postgres=# select tableoid::regclass,* from d0;
 tableoid | a | b
----------+---+---
 d1       | 0 | 
(1 row)


QMG, EnterpriseDB Corporation