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Re: UNION and rows improperly unified: query optimization question - Mailing list pgsql-sql

From Tom Lane
Subject Re: UNION and rows improperly unified: query optimization question
Date
Msg-id 18659.1013476702@sss.pgh.pa.us
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In response to UNION and rows improperly unified: query optimization question  (Henry House <hajhouse@houseag.com>)
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Henry House <hajhouse@houseag.com> writes:
> So I run two select and combine them
> using a union statement, but this improperly combines two gl_entry lines th=
> at
> do not differ in amount or transaction ID.

AFAICT you do not want duplicate-row elimination at all.  Why don't you
use UNION ALL?
        regards, tom lane

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