Group By and wildcards...
От | Jon Lapham |
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Тема | Group By and wildcards... |
Дата | |
Msg-id | 42174810.6050709@jandr.org обсуждение исходный текст |
Ответы |
Re: Group By and wildcards...
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Список | pgsql-general |
When using queries with aggregate functions, is there any way to not have to have to explicitly write all the columns names after the GROUP BY ? I would like to use a wildcard "*". Imagine tables a, b, c, d each with hundreds of columns. As an example, I would like to write: SELECT a.*, b.*, c.*, SUM(d.blah) FROM a, b, c, d WHERE <some join conditions> GROUP BY a.*, b.*, c.* Instead of having to expand the "GROUP BY a.*, b.*, c.*" using the explicit column names of all the column in a, b, and c. This becomes a maintenance nightmare as you add/drop column in these tables... Thanks for any advice on how to handle this, -Jon PS: I'm using postgresql v7.4.x -- -**-*-*---*-*---*-*---*-----*-*-----*---*-*---*-----*-----*-*-----*--- Jon Lapham <lapham@jandr.org> Rio de Janeiro, Brasil Personal: http://www.jandr.org/ ***-*--*----*-------*------------*--------------------*---------------
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