cost-based-optimization

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abfhdays / iRouter

Inspired and built with SQLGlot

python pyspark data-engineering sql-parser query-engine query-optimization sqlglot partition-pruning cost-based-optimization

Updated Feb 18, 2026
Python

anastasijalju12 / sql-query-optimizer

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The system analyzes SQL queries and determines an efficient evaluation plan based on the available database schema, indexes, buffer size, and estimated operation costs. The goal is to simulate key aspects of a database query optimizer and demonstrate how different execution algorithms affect query performance.

python json sql algorithms query-optimization database-systems b-plus-tree external-sorting hash-join sort-merge-join hash-indexes query-execution join-algorithms cost-based-optimization

Updated Aug 22, 2026
Python

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