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Patch: Compression of Full Page Writes

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CommitFest 2014-08
Topic Performance
Patch Status Returned with Feedback
Author Pavan Deolasee , Rahila Syed
Reviewers Abhijit Menon-Sen
Committer Nobody
Close Date 2014-09-29
Patch by rahila.syed on 2014-06-13 02:46:45 PM: Initial version.
Review by ams on 2014-06-17 11:48:41 AM: Comments about naming and code style
Patch by rahila.syed on 2014-07-03 08:03:12 PM: Updated patch as per review comments
Review by ams on 2014-07-04 03:34:00 PM: Various minor problems, but allocation needs to move out of XLogInsert
Patch by rahila.syed on 2014-08-19 05:43:30 PM: Patch to compress multiple blocks of a record together. Memory allocation is moved out of critical section. Backup blocks are compressed without hole as in the original code to back up the blocks in WAL.
Patch by rahila.syed on 2014-09-23 09:10:02 AM: Patch to compress FPW using pglz. This patch compresses all backup blocks in WAL record at once. full_page_writes GUC had been modified to accept literals 'on', 'compress' 'off'
Comment by andresfreund on 2014-09-29 11:28:46 PM: A fair amount of work left to be done.

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