From: | Steve Midgley <public(at)misuse(dot)org> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Columns view? (Finding column names for a table) |
Date: | 2008-02-06 20:33:25 |
Message-ID: | 20080206203334.8B2B52E01F8@postgresql.org |
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Thread: | |
Lists: | pgsql-sql |
Hi,
I see this documentation item but can't figure out how to use it:
http://www.postgresql.org/docs/8.2/interactive/infoschema-columns.html
>The view columns contains information about all table columns (or view
>columns) in the database.
However, if I execute "select columns;" I get a not found error. I'm
sure there's some simple explanation - I'm interested specifically in
listing the column names of a specific table (in Pg 8.2). The manual
SQL I've developed is (where [table_name] is the table I want columns
for):
select pg_attribute.attname, * from pg_attribute
join pg_class on pg_class.oid = pg_attribute.attrelid
where
pg_class.relname = '[table_name]'
and
attnum > 0
and atttypid > 0
Not pretty but seems to work. Of course if there were a view that
encapsulated this and future-proofed it, that'd be much nicer.
Any assistance is appreciated! Thanks,
Steve
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