INSTALL-------This is a regular extension (9.1) or a contrib module (9.0), so it may beinstalled rather easily - do either this  $ make install  $ psql dbname -c "CREATE EXTENSION pg_check"or this (on 9.0)  $ make install  $ psql dbname < `pg_config --sharedir`/contrib/pg_check--0.1.0.sqland the extension should be installed.FUNCTIONS---------Currently there are four functions available * pg_check_table(name, bFrom, bTo) - checks range of blocks for the table * pg_check_table(name, indexes) - checks the table and all indexes on it * pg_check_index(name, bFrom, bTo) - checks range of blocks for the index * pg_check_index(name) - checks the whole indexSo if you want to check table "my_table" and all the indexes on it, do this:  db=# SELECT pg_check_table('my_table', true);and it will print out info about the checks (and return number of issues).MESSAGES--------The functions may print various info about the blocks/tuples, depending onthe client_min_messages level.   WARNING - only info about actual issues   DEBUG1  - info about pages   DEBUG2  - info about tuples on a page   DEBUG3  - info about attributes of a tupleLICENSE-------This software is provided under the BDS license. See LICENSE for details.