Hi all, Recently, while working with partitioned tables, I identified an issue where the error message references an incorrect column name when a range-partitioned table’s boundary values include MINVALUE or MAXVALUE.
For example:
postgres=# CREATE TABLE pt_test_colname(a int, b int, c int) PARTITION BY
RANGE(a, b);
-- right case
postgres=# CREATE TABLE pt_test_colname_p1 PARTITION OF pt_test_colname FOR
VALUES FROM (10, now()) TO (100, 100);
ERROR: specified value cannot be cast to type integer for column "b"
LINE 1: ...PARTITION OF pt_test_colname FOR VALUES FROM (10, now()) TO ...
^
-- wrong case
postgres=# CREATE TABLE pt_test_colname_p1 PARTITION OF pt_test_colname FOR
VALUES FROM (minvalue, now()) TO (100, 100);
ERROR: specified value cannot be cast to type integer for column "a"
LINE 1: ...ION OF pt_test_colname FOR VALUES FROM (minvalue, now()) TO ...
^
The datetime value returned by now() cannot be cast to the partition key b
(integer type), yet the error message incorrectly attributes this casting
failure to column a when the preceding boundary value is the special MINVALUE
or MAXVALUE.
v1-0001-Fix-incorrect-column-name-in-error-message-for-range.patch
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