1. 23 Nov, 2006 3 commits
    • Bruce Momjian's avatar
      Shared Memory Hooks Documentation · 5f78aa5a
      Bruce Momjian authored
      This patch, against xfunc.sgml, adds a new subsection 33.9.12, Shared
      Memory and LWLocks in C-Language Functions, describing how shared memory
      and lwlocks may be requested by C add-in functions.
      
      Marc Munro
      5f78aa5a
    • Bruce Momjian's avatar
      Add release entry for 8.1.5 that was missing: · 3e0c96b2
      Bruce Momjian authored
      	<listitem><para>Fix rare bug in continuous archiving (Tom)</para></listitem>
      3e0c96b2
    • Tom Lane's avatar
      Several changes to reduce the probability of running out of memory during · 395249ec
      Tom Lane authored
      AbortTransaction, which would lead to recursion and eventual PANIC exit
      as illustrated in recent report from Jeff Davis.  First, in xact.c create
      a special dedicated memory context for AbortTransaction to run in.  This
      solves the problem as long as AbortTransaction doesn't need more than 32K
      (or whatever other size we create the context with).  But in corner cases
      it might.  Second, in trigger.c arrange to keep pending after-trigger event
      records in separate contexts that can be freed near the beginning of
      AbortTransaction, rather than having them persist until CleanupTransaction
      as before.  Third, in portalmem.c arrange to free executor state data
      earlier as well.  These two changes should result in backing off the
      out-of-memory condition before AbortTransaction needs any significant
      amount of memory, at least in typical cases such as memory overrun due
      to too many trigger events or too big an executor hash table.  And all
      the same for subtransaction abort too, of course.
      395249ec
  2. 22 Nov, 2006 8 commits
  3. 21 Nov, 2006 19 commits
  4. 20 Nov, 2006 10 commits