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Greenplum Database - Massively Parallel PostgreSQL for Analytics. An open-source massively parallel data platform for analytics, machine learning and AI.
The generated columns are computed after distribution. if generated columns are used as distribution key, they will always use null values to compute the distribution key value, and it will...
This is back-porting VACUUM indexes enhancement https://github.com/greenplum-db/gpdb/pull/13255 In the past, we rely on the visibility map to check if an index entry can be removed. Scanning VM is not such...
gprecoverseg, gpmovemirrors should show warning and gpexpand should raise an exception if there is already a running instance of pg_basebackup for the segment that needs to be recovered/moved. How this...
Hi. I'm recently researching on aggregate implementation in greenplum. And I have noticed that the "streaming bottom" feature has been removed in PG_12_MERGE. I'm just wondering why is that? Maybe...
## Bug Report ### Greenplum version or build GPDB 6.x ### Expected behavior GPDB documentation should have information about GPDB built-in functions `linear_interpolate()`. ### Actual behavior `linear_interpolate()` functions only appear...
The injected fault 'func_init_plan_end' is set only triggered once, and it's possible that the fault can be triggered by dtx recovery process before than insert statement. So in this case,...
## Here are some reminders before you submit the pull request - [ ] Add tests for the change - [ ] Document changes - [ ] Communicate in the...
Why : In previous PR [13757](https://github.com/greenplum-db/gpdb/pull/13757) where the plan was to check the health of the cluster before starting the expansion in gpexpand. while backporting in 6x we realised that...
GPDB has Shared Scan node to share the output of a subplan. Each Shared Scan node can act like producer or consumer. Each one may be a part of different...
Reviewers: there are a bunch of CI failures. I'm fixing those now. Might have some additional changes to the PR. So no hurry on reviewing. ---------- Adapted from patch submitted...
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Greenplum Database - Massively Parallel PostgreSQL for Analytics. An open-source massively parallel data platform for analytics, machine learning and AI.