[DOCS] pg_buffercache

Hi, has anyone noted that the structure of the pg_buffercache view in the docs has relforknumber and relblocknumber swaped. also, should we add a little description of what values can we find in relforknumber? attached is an extremely simple patch to fix both -- Jaime Casanova www.2ndQ

[DOCS] Small patch for "CREATE TRIGGER" documentation

I found this sentence somewhat confusing: "It is possible for a column's value to change even when the trigger is not fired," http://www.postgresql.org/docs/devel/static/sql-createtrigger.html#SQL-CREATETRIGGER-NOTES More precise would be something along the lines "It is possible that changes to