Re: Getting list of supported types in Postgres

Adrian Klaver <adrian.klaver@xxxxxxxxx> · Thu, 15 Aug 2013 07:59:49 -0700

On 08/15/2013 07:53 AM, Ivan Radovanovic wrote:

Now I just need to find out which types can be indexed (and which types
can be part of PK)

http://www.postgresql.org/docs/9.2/interactive/indexes.html

doesn't list which types can be indexed and which can't?

Postgres can handle a variety of indexes including indexing on 
expressions, which is why I pointed you to that link.

To cut to the chase, in the above link at:

http://www.postgresql.org/docs/9.2/interactive/indexes-opclass.html

there is this:

SELECT am.amname AS index_method,
       opf.opfname AS opfamily_name,
       amop.amopopr::regoperator AS opfamily_operator
    FROM pg_am am, pg_opfamily opf, pg_amop amop
    WHERE opf.opfmethod = am.oid AND
          amop.amopfamily = opf.oid
    ORDER BY index_method, opfamily_name, opfamily_operator;

--
Adrian Klaver
adrian.klaver@xxxxxxxxx

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