Find and Fix Slow PostgreSQL Queries: Performance Analysis Tools
Slow queries kill productivity. Your app feels sluggish. Users complain. You know something's wrong but don't know what.
The Performance Analysis MCP server bundle helps you find and fix performance problems. Nine MCP tools for finding slow queries, analyzing execution plans, optimizing indexes, and monitoring database health. It's your performance debugging toolkit.
What This Bundle Does
Performance analysis breaks down into a few key areas. Find slow queries. Understand why they're slow. Optimize indexes. Monitor database health. Detect locks and blocking queries.
This bundle gives you MCP tools for all of it.
Finding Slow Queries
First step: which queries are slow? What's taking forever? What's blocking other queries?
The MCP tools find slow queries from pg_stat_statements. See which queries take the longest. Understand what's causing performance issues. Query text, execution time, call count—everything you need to identify problem queries.
Your database is slow. Find slow queries to see what's taking time. See query text, execution time, call count. Identify the problem queries.
Ask "Show me the slowest queries" and the AI finds slow queries from pg_stat_statements, sorts by execution time, shows you what's slow.
Analyzing Query Execution Plans
Okay, so you found a slow query. Now what? Why is it slow? What's the execution plan? Where's the bottleneck?
The MCP tools run EXPLAIN ANALYZE to show query execution plans. See how PostgreSQL executes your queries. Understand where time is spent. Analyze execution plans to find bottlenecks—sequential scans, index scans, joins. Understand what's slow and why.
You've got a slow query. Explain the query plan to see how it executes. Find the bottleneck. Optimize it.
Ask "Why is this query slow?" and the AI explains the query plan, analyzes execution steps, shows you where the bottleneck is.
Optimizing Indexes
Indexes can make or break performance. Are yours working? Are they being used? Are there missing indexes?
The MCP tools analyze index usage patterns. See which indexes are used and which aren't. Find unused indexes you can remove. Get suggestions for missing indexes that would improve performance. See which columns need indexes based on query patterns.
Your queries are slow. Analyze index usage to see what's being used. Find missing indexes that would help. Create them.
Ask "Analyze my indexes and suggest improvements" and the AI analyzes index usage, finds unused indexes, suggests missing indexes, shows you what to optimize.
Monitoring Table Statistics
Database health matters. Table size, bloat, dead tuples, storage stats—is your database healthy?
The MCP tools show table statistics including size, bloat, dead tuples, and storage stats. Monitor database health. Get maintenance suggestions for VACUUM and ANALYZE. See which tables need maintenance.
Monitor table statistics to see database health. Check for bloat and dead tuples. Get maintenance suggestions.
Ask "Show me table statistics and maintenance suggestions" and the AI shows table stats, checks for bloat, suggests maintenance operations.
Detecting Locks and Blocking Queries
Queries hanging? Probably locks. What's locking tables? What's blocking queries? What's causing deadlocks?
The MCP tools show current locks and blocking queries. See what's locked and what's waiting. Find the blocking queries. Kill them if needed.
Queries are hanging. Check locks to see what's blocking. Find the blocking queries. Kill them if needed.
Ask "Show me current locks and blocking queries" and the AI shows all locks, identifies blocking queries, shows you what's causing the problem.
How AI Uses This Bundle
When you ask "Why is this query slow?," the AI loads the Performance Analysis MCP server bundle, uses postgres_explain_query to analyze the execution plan, uses postgres_analyze_indexes to check index usage, suggests optimizations.
Ask "Find slow queries" and it finds slow queries from pg_stat_statements, analyzes execution plans, shows you what's slow and why.
Want to optimize indexes? "Analyze my indexes and suggest improvements" triggers index usage analysis, finds unused indexes, suggests missing indexes, shows you what to optimize.
Getting Started
Enable the Performance Analysis MCP server bundle in your MCPBundles account. Connect your PostgreSQL database (host, port, database, user, password—one-time setup). Then start asking performance questions. The AI automatically uses the right MCP tools based on what you ask.
Want more? Check out the Schema Discovery MCP Server Bundle for understanding database structure, the Development & Operations MCP Server Bundle for making schema changes, or the Main PostgreSQL MCP Server Bundle for all 38 MCP tools.
Enable the Performance Analysis MCP server bundle and start fixing slow queries.