From: | pere roca <peroc79(at)gmail(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | counting columns |
Date: | 2007-08-28 15:46:56 |
Message-ID: | 12368870.post@talk.nabble.com |
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Thread: | |
Lists: | pgsql-general |
hi!
I want different users to insert data and perform different analysis which
will be inserted in an interactively created new column. The name of this
new column should follow a logic name such as: fxanalysis_1 for the first
user that perform the analysis called fx, fxanalysis_2 for the second...
To get it, I think I should construct a function that counts how many
columns have their name starting with fxanalysis.
If count >=1, then alter table adding a new column with name fxanalysis_2
and so on...
One of the questions: how to COUNT COLUMNS? I can rename, add, alter
columns... but count?
Thanks in advance,
Pere
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