getPrimaryKeys() bug in JDBC driver (fix)

Hi,

as it looks the getPrimaryKeys function in the postgresql
jdbc driver is broken. With psql 6.5.1, it returns "garbage" because of a
wrong SQL query in DatabaseMetaData.getPrimaryKeys().

With my limited knowledge of the postgresql internas I think this is the
right query to get all the primary key columns of a table (here: 'test'):

select
'' as TABLE_CAT,
'' AS TABLE_SCHEM,
bc.relname AS TABLE_NAME,
a.attname AS COLUMN_NAME,
a.attnum as KEY_SEQ,
ic.relname as PK_NAME
from
pg_class bc, pg_class ic, pg_index i, pg_attribute a, pg_type t
where
bc.relkind = 'r'
and upper(bc.relname) = upper('test')
and i.indrelid = bc.oid
and i.indexrelid = ic.oid and a.attrelid = ic.oid
and i.indisprimary='t'
order by table_name, pk_name,key_seq;

Could you check that please?

Regards,

--
Jens Glaser Am Holderstrauch 13, 36041 Fulda, 0661/9429507 jens(at)jens(dot)de