setup for single sign on with [SSPI](https://wiki.postgresql.org/wiki/Configuring_for_single_sign-on_using_SSPI_on_Windows) md5 hash is salted with username in front Memory ========================================================= see whats in the buffer cache with pg_buffercache `CREATE EXTENSION pg_buffercache` ``` SELECT c.relname, COUNT(*) AS buffers FROM pg_class c INNER JOIN pg_buffercache b ON b.relfilenode = c.relfilenode INNER JOIN pg_database d ON ( b.reldatabase = d.oid AND d.datname = CURRENT_DATABASE()) GROUP BY c.relname ORDER BY 2 DESC LIMIT 100; ``` Alter Column ========================================================== ALTER TABLE rlarp.pcore ALTER COLUMN pack SET DATA TYPE numeric USING pack::numeric