~ubuntu-branches/ubuntu/precise/postgresql-9.1/precise-security

« back to all changes in this revision

Viewing changes to doc/src/sgml/indexam.sgml

  • Committer: Bazaar Package Importer
  • Author(s): Martin Pitt
  • Date: 2011-07-14 18:39:43 UTC
  • mfrom: (1.1.2 upstream)
  • Revision ID: james.westby@ubuntu.com-20110714183943-eqlbsrurk6kh6lou
Tags: 9.1~beta3-1
* New upstream beta release.
  - Works around gcc 4.6.0 bug. (Closes: #633086)

  Note that this does not change the data format since Beta 2, so no need
  to dump/reload clusters.

Show diffs side-by-side

added added

removed removed

Lines of Context:
712
712
   read-write conflict with the insert of any tuple into that index by a
713
713
   concurrent serializable transaction.  If certain patterns of read-write
714
714
   conflicts are detected among a set of concurrent serializable
715
 
   transactions, one of those transactions may be cancelled to protect data
 
715
   transactions, one of those transactions may be canceled to protect data
716
716
   integrity.  When the flag is set, it indicates that the index access
717
717
   method implements finer-grained predicate locking, which will tend to
718
718
   reduce the frequency of such transaction cancellations.