Horton

Re: Patch: Write Amplification Reduction Method (WARM)

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Jaime Casanova <jaime.casanova@2ndquadrant.com>
Cc: Pavan Deolasee <pavan.deolasee@gmail.com>, Haribabu Kommi <kommi.haribabu@gmail.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2016-12-26T15:53:18Z
Lists: pgsql-hackers 
Jaime Casanova wrote:

> * The isolation test for partial_index fails (attached the regression.diffs)

Hmm, I had a very similar (if not identical) failure with indirect
indexes; in my case it was a bug in RelationGetIndexAttrBitmap() -- I
was missing to have HOT considerate the columns in index predicate, that
is, the second pull_varattnos() call.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Implement SortSupport for macaddr data type

  2. Simplify check of modified attributes in heap_update

  3. Remove direct uses of ItemPointer.{ip_blkid,ip_posid}

  4. Fix CatalogTupleInsert/Update abstraction for case of shared indstate.

  5. Provide CatalogTupleDelete() as a wrapper around simple_heap_delete().

  6. Band-aid fix for incorrect use of view options as StdRdOptions.

  7. Update visibility map in the second phase of vacuum.

  8. Avoid having two copies of the HOT-chain search logic.

  9. Postgres95 1.01 Distribution - Virgin Sources