MySQL OR Condition to UNION ALL
This article demonstrates how optimizing MySQL OR conditions with UNION ALL significantly improves query performance, based on experimental results and execution plan analysis.
Rebooter.S
Read More
6 min
Category: Episode
9 posts
5 Steps to Optimize MySQL Deep Pagination
This article explores MySQL deep pagination optimization using Deferred Join technique, demonstrating 80.3% faster query performance with 99.99% fewer back-to-table operations through comprehensive testing.
Rebooter.S
Read More
5 min
GROUP BY Clause Elimination
Removing redundant GROUP BY clauses boosts MySQL performance 580x through primary key index optimization.
Rebooter.S
Read More
4 min
HAVING Condition Pushdown: Optimizing Query Performance
Learn how HAVING condition pushdown optimizes SQL queries by 17% faster execution and 25% reduced rows scanned through automated index utilization and execution plan analysis.
Rebooter.S
Read More
5 min
Pushing LIMIT Down to UNION Branches Performance
This article reveals how pushing LIMIT down to UNION branches reduces intermediate dataset size by 99% and achieves a 40% query speed boost through index utilization and execution plan optimization. Master advanced pagination strategies for high-performance SQL workflows.
Rebooter.S
Read More
6 min
Non-Correlated Subquery Optimization with Index-Driven Execution
Boost MySQL query performance by 217x using index-driven execution strategies for non-correlated subqueries. Eliminate full table scans, reduce I/O overhead, and optimize execution paths for large datasets. Practical OLTP solutions with metrics and case studies.
Rebooter.S
Read More
6 min
Outer Join Optimization: Proven Performance Gains
Discover how SQLFlash optimizes SQL queries using predicate pushdown. Test results on million-row data show reduced I/O, CPU, and improved performance.
Rebooter.S
Read More
6 min
Predicate Pushdown Performance Optimization Scheme
Unlock 100x faster MySQL queries by mastering LIKE optimization through range scans and index-aware SQL rewriting. Discover how SQLFlash leverages B+ tree principles to eliminate full-table scans and boost database performance.
Rebooter.S
Read More
5 min
Window Function Performance Comparison and Optimization Strategies
This report compares MySQL TopN query optimizations using window functions, showcasing a two-order performance boost via CTE and LIMIT strategies with SQLFlash. Original 8-second queries optimized to 10ms through execution plan analysis and indexing strategies.
Rebooter.S
Read More
5 min