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              databases            
            May 20, 2026
            7 min
          

B-Tree vs LSM-Tree: The Index Trade-off

…point lookups → B-Tree (PostgreSQL, MySQL InnoDB)","Write-heavy, time-series, wide rows → LSM-Tree (Cassandra, RocksDB, LevelDB)"]}}],"version":"2.30.2"}

b-tree databases lsm-tree performance storage-engines

            
              databases            
            May 5, 2026
            6 min
          

SQL Query Optimisation: The Basics That Actually Matter

{"time":1780213482605,"blocks":[{"type":"header","data":{"level":2,"text":"Read the Execution Plan"}},{"type":"paragraph","data":{"text":"Before optimising anything, run EXPLAIN ANALYZE. Look for Seq Scan on large…

indexing performance postgresql query-optimization sql

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B-Tree vs LSM-Tree: The Index Trade-off

SQL Query Optimisation: The Basics That Actually Matter