Make ActiveRecord logs more short and clean by removing system SQL logs lines. That actually only for PostgreSQL.

Example of Removed Log Line

 SQL (0.000000)    SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
 FROM pg_attribute a LEFT JOIN pg_attrdef d
 ON a.attrelid = d.adrelid AND a.attnum = d.adnum
 WHERE a.attrelid = 'categories'::regclass
 AND a.attnum > 0 AND NOT a.attisdropped
 ORDER BY a.attnum