Re: BUG #4076: "IS NOT NULL (IS NULL)" return wrong answer even where all fields are NULL(or NOT NULL).

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От Tom Lane
Тема Re: BUG #4076: "IS NOT NULL (IS NULL)" return wrong answer even where all fields are NULL(or NOT NULL).
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Msg-id 1869.1207060467@sss.pgh.pa.us
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Ответ на BUG #4076: "IS NOT NULL (IS NULL)" return wrong answer even where all fields are NULL(or NOT NULL).  ("Tatsuhito Kasahara" <kasahara.tatsuhito@oss.ntt.co.jp>)
Ответы Re: BUG #4076: "IS NOT NULL (IS NULL)" return wrong answer even where all fields are NULL(or NOT NULL).  (Tatsuhito Kasahara <kasahara.tatsuhito@oss.ntt.co.jp>)
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"Tatsuhito Kasahara" <kasahara.tatsuhito@oss.ntt.co.jp> writes:
> PostgreSQL version: 8.1.11
> Description:        "IS NOT NULL (IS NULL)" return wrong answer even where
> all fields are NULL(or NOT NULL).

> I think following fix is related..
> http://archives.postgresql.org/pgsql-committers/2006-09/msg00439.php

Yup, it is.  Why are you reporting this?

            regards, tom lane

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