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Which is optional in vacuum in PostgreSQL?
In the examples below, [tablename] is optional. Without a table specified, VACUUM will be run on available tables in the current schema that the user has access to. Full VACUUM: Locks the database table, and reclaims more space than a plain VACUUM
How to drop a PostgreSQL database if it is not active?
Once you disconnect everyone you will have to disconnect and issue the DROP DATABASE command from a connection from another database aka not the one your trying to drop. Note the renaming of the procpid column to pid. See this mailing list thread.
What are the new features of pganalyze for Postgres?
We’re excited to announce the general availability of three new pganalyze features: Connection Tracing, Wait Event Analysis, as well as Vacuum Monitoring. These features have been developed based on the feedback of hundreds of customers monitoring their production Postgres databases using pganalyze.
How to disconnect database from PostgreSQL 9.2?
In PostgreSQL 9.2 and above, to disconnect everything except your session from the database you are connected to: SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity WHERE datname = current_database() AND pid <> pg_backend_pid(); In older versions it’s the same, just change pid to procpid.
Is there a verbose option in PostgreSQL?
As we see the ouptput of the verbose option, it seems that Postgresql has not much to do, as every table VACUUM ed gives: INFO: vacuuming “public.table345” INFO: “table345”: found 0 removable, 9831703 nonremovable row versions in 62538 pages DETAIL : 0 dead row versions cannot be removed yet.
How is analyze used to improve PostgreSQL performance?
ANALYZE gathers statistics for the query planner to create the most efficient query execution paths. Per PostgreSQL documentation, a ccurate statistics will help the planner to choose the most appropriate query plan, and thereby improve the speed of query processing. In the example below, [tablename] is optional.
Where to find autovacuum status in PostgreSQL?
Ss 16Mar17 0:05.63 postgres: autovacuum launcher process On UNIX or Windows, you can find the status of autovacuum in the pg_settings database with the query below: