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03 Data Management

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00 Relational Databases

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02 Sub Concept

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Statistics

Statistics

Feb 10, 20261 min read

  • relational-databases
  • query-optimization
  • query-planner

Statistics

← Back to Query Planner

Table and column statistics (row counts, value distributions, null fractions) that the query planner uses to estimate costs. Maintained by ANALYZE in Postgres and auto-updated by autovacuum.

relational-databases query-optimization query-planner


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