Re: Patch: Write Amplification Reduction Method (WARM)

Haribabu Kommi <kommi.haribabu@gmail.com>

From: Haribabu Kommi <kommi.haribabu@gmail.com>

To: Pavan Deolasee <pavan.deolasee@gmail.com>

Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2016-11-08T03:43:16Z

Lists: pgsql-hackers

Thanks for the patch. This shows a very good performance improvement.

I started reviewing the patch, during this process and I ran the regression
test on the WARM patch. I observed a failure in create_index test.
This may be a bug in code or expected that needs to be corrected.

Regards,
Hari Babu
Fujitsu Australia

Commits

Implement SortSupport for macaddr data type
- f90d23d0c518 10.0 cited
Simplify check of modified attributes in heap_update
- 2fd8685e7fd9 10.0 landed
Remove direct uses of ItemPointer.{ip_blkid,ip_posid}
- ce96ce60ca22 10.0 landed
Fix CatalogTupleInsert/Update abstraction for case of shared indstate.
- aedd554f84bb 10.0 landed
Provide CatalogTupleDelete() as a wrapper around simple_heap_delete().
- ab02896510e2 10.0 landed
Band-aid fix for incorrect use of view options as StdRdOptions.
- e3e66d8a9813 10.0 cited
Update visibility map in the second phase of vacuum.
- fdf9e21196a6 9.3.0 cited
Avoid having two copies of the HOT-chain search logic.
- 4da99ea4231e 9.2.0 cited
Postgres95 1.01 Distribution - Virgin Sources
- d31084e9d111 7.1.1 cited