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23 results

gistscan.c

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    • Tom Lane's avatar
      bdadc9bf
      Remove RelationGetBufferWithBuffer(), which is horribly confused about · bdadc9bf
      Tom Lane authored
      appropriate pin-count manipulation, and instead use ReleaseAndReadBuffer.
      Make use of the fact that the passed-in buffer (if there is one) must
      be pinned to avoid grabbing the bufmgr spinlock when we are able to
      return this same buffer.  Eliminate unnecessary 'previous tuple' and
      'next tuple' fields of HeapScanDesc and IndexScanDesc, thereby removing
      a whole lot of bookkeeping from heap_getnext() and related routines.
      bdadc9bf
      History
      Remove RelationGetBufferWithBuffer(), which is horribly confused about
      Tom Lane authored
      appropriate pin-count manipulation, and instead use ReleaseAndReadBuffer.
      Make use of the fact that the passed-in buffer (if there is one) must
      be pinned to avoid grabbing the bufmgr spinlock when we are able to
      return this same buffer.  Eliminate unnecessary 'previous tuple' and
      'next tuple' fields of HeapScanDesc and IndexScanDesc, thereby removing
      a whole lot of bookkeeping from heap_getnext() and related routines.