Cloudberry Database v1.5.4 Release Notes

Version number: v1.5.4

Cloudberry Database v1.5.4 is a minor release that includes some improvements, changes, and bug fixes.

Quick try: v1.5.4

Improvements

Add the cbdb_relation_size function by @fanfuxiaoran in #428
Cherry-pick the updates from Greenplum Database upstream (02/07/2022-02/28/2022) by @avamingli in #432
Support the DISTINCT clause in origin queries for "Answer Query Using Materialized Views" by @avamingli in #439
Support the Postgres-specific DISTINCT ON clause in origin queries for "Answer Query Using Materialized Views" by @avamingli in #441
Expand a new external variable tag by @jiaqizho in #443
Expand the pending deletes interface by @jiaqizho in #442
Support the LIMIT/OFFSET/FETCH clause in origin queries for "Answer Query Using Materialized Views" by @avamingli in #446
Clean up the build tools and guide directories by @tuhaihe in #445
Insert more data to make tuplestore spill in regress/misc_jiras.sql by @fanfuxiaoran in #452

Fix the motion toast error by @gfphoenix78 in #436
Fix the issue of checking password file permissions in dbconn.py by @fanfuxiaoran in #438
Fix the ORCA issue of the flaky Invalid key is inaccessible fallback (#15147) by @fanfuxiaoran in #437
Fix explain(locus) issues by @avamingli in #433
Use the checkberry gpcheckperf series updates to solve the problem that the gpcheckperf in Cloudberry Database v1.5.2 does not display disk information by @August-beaulo in #430

Remove the cbload-related code by @wenchaozhang-123 in #431
Refactor cbload to gpdirtableload using Python by @wenchaozhang-123 in #435
Remove the CPP keywords that were used as function or parameter names by @jiaqizho in #449

@fanfuxiaoran made their first contribution in #428