Monitoring postgres - Mailing list pgsql-hackers

Dears,

            I need monitor a postgres database, but I don’t know which tool to use.

            The tool need perform the below actions

1. show transactions pendents
2. show the statistics per session actives
3. show the statistics per database
4. show metrics per session and database
5. show rows locks
6. show slow activities statements (SELECT, INSERT, UPDATE, DELETE)
7. to allow set a trace to a specific session, similar the tool  dbms_system.SET_SQL_TRACE_IN_SESSION include in Oracle Database

            Thanks