Effective partitioning in PostgreSQL can be crucial for maintaining a database with growing application data. Default partitions serve as a catch-all for data that doesn't fit existing partitions and help manage unexpected or incorrect data entries. It's essential not to leave data in default partitions and regularly monitor and move valid data to appropriate child partitions. Tools like pg_partman can assist in managing this process, automatically creating child partitions and providing functions to check and handle data in default partitions.
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Adding a defaultConstraints with partition tablesMoving default data to a new child tablepg_partmanSummarySort: