Zhang Mingli

Break early when creating Memtuple binding from TupleDesc

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MemtupleBinding is column aligned by 4 or 8 bytes. It can be set to 8 if we find an attribute's attalign is 'd' (8 bytes on most machines), there is...

Fix CTAS crash.

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## reproduce ```sql gpadmin=# select version(); version -------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------- ------------------------ PostgreSQL 12.12 (Greenplum Database 7.1.0+dev.109.g2a14c41782d build dev) on x86_64-pc-linux-gnu, comp iled by gcc (Ubuntu 11.3.0-1ubuntu1~22.04.1) 11.3.0, 64-bit compiled on Feb...

Fix wrong results Left Anti Semi (Not-In) Join.

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Fix issue #15662 See all reproduce cases there, I pick a case to show the problem and how I resolve it. GPDB's special join type Left Anti Semi (Not-In) Join,...

Fix PARTITION typo.

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Authored-by: Zhang Mingli [email protected] ## Here are some reminders before you submit the pull request - [ ] Add tests for the change - [ ] Document changes - [...

Since we have supported ORDER BY caluse and DISTINCT ON clause references are processed in target list, open it on origin query. ```sql create incremental materialized view mv as select...

For a parallel join, we may benefit if gather SegmentGeneralWorkers to SingleQE. Gather(SegmentGeneralWorkers) join SingleQE, return join locus: SingleQE. We may win if we are a parallel-aware join, SingleQE is...

### Cloudberry Database version @ 5f9190ec9d3ad0dfff0f3d16e52b1bda2a1d65af ### What happened There are 73 CBDB_PARALLEL_FIXME of 27 files. ### What you think should happen instead _No response_ ### How to reproduce NA...

[Bug] unstable pg_upgrade failed

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### Cloudberry Database version _No response_ ### What happened We suffer it for a long time ```shell pg_upgrade failed psql: error: connection to server on socket "/tmp/.s.PGSQL.17432" failed: No such...

### Cloudberry Database version _No response_ ### What happened According to https://www.postgresql.org/docs/14/parallel-safety.html > The planner classifies operations involved in a query as either parallel safe, parallel restricted, or parallel unsafe....

Replace the hacky way stats pg_appendonly.segfilecount

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### Cloudberry Database version _No response_ ### What happened This is added by me when implementing AO/AOCS's parallel scan feature. `segfilecount` is used to parallel workers for AO/AOCS. It's updated...