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readfuncs.c

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    • Tom Lane's avatar
      8e8854da
      Add some basic support for window frame clauses to the window-functions · 8e8854da
      Tom Lane authored 
      patch.  This includes the ability to force the frame to cover the whole
partition, and the ability to make the frame end exactly on the current row
rather than its last ORDER BY peer.  Supporting any more of the full SQL
frame-clause syntax will require nontrivial hacking on the window aggregate
code, so it'll have to wait for 8.5 or beyond.
      8e8854da
      History
      Add some basic support for window frame clauses to the window-functions
      Tom Lane authored 
      patch.  This includes the ability to force the frame to cover the whole
partition, and the ability to make the frame end exactly on the current row
rather than its last ORDER BY peer.  Supporting any more of the full SQL
frame-clause syntax will require nontrivial hacking on the window aggregate
code, so it'll have to wait for 8.5 or beyond.