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The configuration parameters min_parallel_index_scan_size and min_parallel_table_scan_size significantly affect the performance of parallel queries in PostgreSQL.

Database ManagementPostgresqlOct 3, 2026score 0.172 posts · 0 replies across 1 instances
The thread discusses PostgreSQL configuration parameters related to parallel processing and WAL (Write-Ahead Logging) size, highlighting specific GUCs (Grand Unified Configuration) settings that influence database performance and behavior.

Claims

The configuration parameters min_parallel_index_scan_size and min_parallel_table_scan_size significantly affect the performance of parallel queries in PostgreSQL.
Parent: Database ManagementEntity: PostgreSQLImpact: positiveDate: Oct 3, 2026 - Oct 4, 2026Target: Performance of parallel queries in PostgreSQL
The parameter min_wal_size determines the minimum size of the Write-Ahead Logging (WAL) directory, which impacts the database's ability to handle write operations efficiently.
Parent: Database ManagementEntity: PostgreSQLImpact: positiveDate: Oct 3, 2026 - Oct 4, 2026Target: Efficiency of write operations in PostgreSQL

Source posts

@[email protected]
Christophe Pettus: All Your GUCs in a Row: min_parallel_index_scan_size and min_parallel_table_scan_size https://postgr.es/p/9wW #postgresql
0 boosts · 0 favs · 0 replies · Oct 3, 2026
#postgresql
@[email protected]
Christophe Pettus: All Your GUCs in a Row: min_wal_size https://postgr.es/p/9wX #postgresql
0 boosts · 0 favs · 0 replies · Oct 4, 2026
#postgresql