References

Bundled resources for sql-query-optimizer skill

sql_optimization_best_practices.md: A comprehensive guide to SQL optimization best practices.
postgresql_indexing.md: Detailed information on PostgreSQL indexing strategies.
mysql_indexing.md: Detailed information on MySQL indexing strategies.
sqlite_indexing.md: Detailed information on SQLite indexing strategies.
sql_execution_plan_analysis.md: A guide to analyzing SQL execution plans.
common_sql_anti_patterns.md: A list of common SQL anti-patterns and how to avoid them.