Re: BUG #13494: Postgresql database displays first column data on merging of two columns in the Select statement

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От Andres Freund
Тема Re: BUG #13494: Postgresql database displays first column data on merging of two columns in the Select statement
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Msg-id 20150708132749.GN10242@alap3.anarazel.de
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Ответ на BUG #13494: Postgresql database displays first column data on merging of two columns in the Select statement  (atulcs178@gmail.com)
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On 2015-07-08 11:29:55 +0000, atulcs178@gmail.com wrote:
> PostgreSQL database displays data of the first column,under second column
> name, When we merge two columns in the Select statement. However it should
> throw error if we don't put any comma (,) in between both columns.

You mean like "SELECT column_a column_b", right? In that case column_b
is the alias for column_a. The SQL standard has made the AS for column
aliases optional.

Regards,

Andres

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