Pedro Doria Meunier wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I'm trying to get the array position for a given match as thus: This gets me the record for a given match: SELECT * FROM garmin_units WHERE 'L' = ANY (protocol_tag); Ok. so far so good... But what about getting the array position at which 'L' is stored? Searching the Postgresql docs gives me no answer... :( Am I on a wild goose chase? Any insight highly appreciated ;) BR, Pedro Doria Meunier. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAksFP6IACgkQ2FH5GXCfxAuasgCgu/d68fkg16r1OF/2QSLnmwhW gjYAniyQ1Mn/72323NSznxgakF4dn98k =tWbI -----END PGP SIGNATURE-----
I wrote this a while ago. If you are on 8.4 use unnest instead. And if you are searching thru really big arrays, use plpgsql so you can terminate when you find a match.
CREATE OR REPLACE FUNCTION idx(text[], text) RETURNS int AS $$ SELECT MIN(CASE WHEN $1[i] = $2 THEN i ELSE NULL END)::int FROM generate_series(array_lower($1, 1), array_upper($1, 1)) i; $$ LANGUAGE 'sql' IMMUTABLE STRICT; -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
