What are dead tuples in PostgreSQL?
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What are dead tuples in PostgreSQL?
Dead tuples are rows in a PostgreSQL table that are no longer visible to any transactions. They occur due to updates or deletes.
How do dead tuples affect database performance?
They can lead to increased disk space usage and slower query performance since PostgreSQL has to scan through these dead tuples.
What can I do to remove dead tuples?
You can use the VACUUM command to reclaim storage and remove dead tuples from the database.
Is there a way to monitor dead tuples?
Yes, you can query the pg_stat_all_tables view to monitor the number of dead tuples in your tables.
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