WIP patch for basic window frame support

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От Tom Lane
Тема WIP patch for basic window frame support
Дата
Msg-id 1401.1230670191@sss.pgh.pa.us
обсуждение исходный текст
Ответы Re: WIP patch for basic window frame support
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No docs or regression tests yet, but it seems to work ... please check
against Oracle and DB2 behavior.  Supported cases are

    RANGE UNBOUNDED PRECEDING    -- same as AND CURRENT ROW
    RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
    RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
    ROWS UNBOUNDED PRECEDING    -- same as AND CURRENT ROW
    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING

            regards, tom lane
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