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  1. Mar 15, 2008
  3. Mar 14, 2008
  5. Mar 13, 2008
    • Tom Lane's avatar
      Update to tzdata 2008a distribution (Chilean DST law change). · d31fb0e6
      Tom Lane authored
      d31fb0e6
    • Tom Lane's avatar
      Fix varstr_cmp's special case for UTF8 encoding on Windows so that strings · 5e00913d
      Tom Lane authored 
      that are reported as "equal" by wcscoll() are checked to see if they really
are bitwise equal, and are sorted per strcmp() if not.  We made this happen
a couple of years ago in the regular code path, but it unaccountably got
left out of the Windows/UTF8 case (probably brain fade on my part at the
time).  As in the prior set of changes, affected users may need to reindex
indexes on textual columns.

Backpatch as far as 8.2, which is the oldest release we are still supporting
on Windows.
      5e00913d
    • Tom Lane's avatar
      Fix heap_page_prune's problem with failing to send cache invalidation · 3e701a04
      Tom Lane authored 
      messages if the calling transaction aborts later on.  Collapsing out line
pointer redirects is a done deal as soon as we complete the page update,
so syscache *must* be notified even if the VACUUM FULL as a whole doesn't
complete.  To fix, add some functionality to inval.c to allow the pending
inval messages to be sent immediately while heap_page_prune is still
running.  The implementation is a bit chintzy: it will only work in the
context of VACUUM FULL.  But that's all we need now, and it can always be
extended later if needed.  Per my trouble report of a week ago.
      3e701a04
    • Bruce Momjian's avatar
      Add URL for: · f4bce7e0
      Bruce Momjian authored 
      * Do async I/O for faster random read-ahead of data

  Async I/O allows multiple I/O requests to be sent to the disk with
  results coming back asynchronously.

>   http://archives.postgresql.org/pgsql-performance/2007-09/msg00255.php
      f4bce7e0
    • Tom Lane's avatar
      Fix pg_plan_queries() to restore the previous setting of ActiveSnapshot · da6a707c
      Tom Lane authored 
      (probably NULL) before exiting.  Up to now it's just left the variable as it
set it, which means that after we're done processing the current client
message, ActiveSnapshot is probably pointing at garbage (because this function
is typically run in MessageContext which will get reset).  There doesn't seem
to have been any code path in which that mattered before 8.3, but now the
plancache module might try to use the stale value if the next client message
is a Bind for a prepared statement that is in need of replanning.  Per report
from Alex Hunsaker.
      da6a707c
  7. Mar 12, 2008
  9. Mar 11, 2008