hash_array_extended() needs to pass down collation

Peter Eisentraut <peter.eisentraut@enterprisedb.com>

From: Peter Eisentraut <peter.eisentraut@enterprisedb.com>

To: pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2020-11-02T07:40:11Z

Lists: pgsql-hackers

Attachments

0001-Enable-hash-partitioning-of-text-arrays.patch (text/plain) patch 0001

I noticed that hash_array_extended() does not pass down the collation to 
the element's collation function, unlike hash_array().  As a 
consequence, hash partitioning using text arrays as partition key fails.

The attached patch fixes this.  I propose to backpatch this.

Commits

Enable hash partitioning of text arrays
- ea9087938131 12.5 landed
- 82d4a2a7d63e 13.1 landed
- 560564d3addc 14.0 landed
Collations with nondeterministic comparison
- 5e1963fb764e 12.0 cited