Hot Standby btree delete records and vacuum_defer_cleanup_age

Simon Riggs <simon@2ndquadrant.com>

From: Simon Riggs <simon@2ndQuadrant.com>
To: pgsql-hackers@postgresql.org
Date: 2010-12-08T15:00:51Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Reduce spurious Hot Standby conflicts from never-visible records.

Attachments

Heikki pointed out to me that the btree delete record processing does
not respect vacuum_defer_cleanup_age. It should.

Attached patch to implement that.

Looking to commit in next few hours barring objections/suggestions, to
both HEAD and 9_0_STABLE, in time for next minor release.

-- 
 Simon Riggs           http://www.2ndQuadrant.com/books/
 PostgreSQL Development, 24x7 Support, Training and Services