What are PostgreSQL transaction logs and how do they work?
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What are PostgreSQL transaction logs and how do they work?
PostgreSQL transaction logs, also known as Write-Ahead Logs (WAL), are used to ensure data integrity. They record changes before they are written to the database.
Why are transaction logs important for database recovery?
Transaction logs are crucial for recovery because they allow PostgreSQL to restore the database to a consistent state after a crash by replaying the logged changes.
How can I view the transaction logs in PostgreSQL?
You can view transaction logs using the pg_waldump utility, which reads the WAL files and displays their contents in a human-readable format.
Can I configure the size of the transaction logs?
Yes, you can configure the size of transaction logs by adjusting the wal_size parameter in the PostgreSQL configuration file.
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