overhaul

migrations/018_performance_optimization.sql

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+-- Performance Optimization Migration
+-- This migration adds additional indexes and optimizations for better query performance
+
+-- Composite indexes for common query patterns
+CREATE INDEX IF NOT EXISTS idx_projects_owner_updated ON projects(owner_id, updated_at DESC);
+CREATE INDEX IF NOT EXISTS idx_services_project_env ON services(project_id, environment_id);
+CREATE INDEX IF NOT EXISTS idx_services_status_project ON services(status, project_id);
+CREATE INDEX IF NOT EXISTS idx_deployments_service_status_created ON deployments(service_id, status, created_at DESC);
+CREATE INDEX IF NOT EXISTS idx_deployments_service_created ON deployments(service_id, created_at DESC);
+
+-- Partial indexes for better performance on filtered queries
+CREATE INDEX IF NOT EXISTS idx_active_deployments ON deployments(service_id, created_at DESC) 
+WHERE status IN ('running', 'deploying');
+
+CREATE INDEX IF NOT EXISTS idx_running_services ON services(project_id, updated_at DESC) 
+WHERE status = 'running';
+
+-- Environment variables optimization
+CREATE INDEX IF NOT EXISTS idx_env_vars_service_key ON environment_variables(service_id, key);
+
+-- Service dependencies optimization
+CREATE INDEX IF NOT EXISTS idx_service_deps_service ON service_dependencies(service_id);
+CREATE INDEX IF NOT EXISTS idx_service_deps_depends_on ON service_dependencies(depends_on_service_id);
+
+-- Project members optimization for role-based queries
+CREATE INDEX IF NOT EXISTS idx_project_members_role ON project_members(project_id, role);
+
+-- Add table statistics for better query planning
+ANALYZE projects;
+ANALYZE services;
+ANALYZE deployments;
+ANALYZE environment_variables;
+ANALYZE service_dependencies;
+ANALYZE project_members;
+ANALYZE users;
+ANALYZE environments;
+
+-- Create a view for project statistics to optimize dashboard queries
+CREATE OR REPLACE VIEW project_stats AS
+SELECT 
+    p.id,
+    p.name,
+    p.description,
+    p.owner_id,
+    p.created_at,
+    p.updated_at,
+    COUNT(DISTINCT s.id) as service_count,
+    COUNT(DISTINCT d.id) as deployment_count,
+    COUNT(DISTINCT CASE WHEN s.status = 'running' THEN s.id END) as running_services,
+    MAX(d.created_at) as last_deployment
+FROM projects p
+LEFT JOIN services s ON p.id = s.project_id
+LEFT JOIN deployments d ON s.id = d.service_id
+GROUP BY p.id, p.name, p.description, p.owner_id, p.created_at, p.updated_at;
+
+-- Create index on the view for better performance
+CREATE INDEX IF NOT EXISTS idx_project_stats_id ON project_stats(id);
+
+-- Function to get project statistics efficiently
+CREATE OR REPLACE FUNCTION get_project_stats(project_uuid UUID)
+RETURNS TABLE(
+    service_count BIGINT,
+    deployment_count BIGINT,
+    running_services BIGINT,
+    last_deployment TIMESTAMP WITH TIME ZONE
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        COUNT(DISTINCT s.id),
+        COUNT(DISTINCT d.id),
+        COUNT(DISTINCT CASE WHEN s.status = 'running' THEN s.id END),
+        MAX(d.created_at)
+    FROM services s
+    LEFT JOIN deployments d ON s.id = d.service_id
+    WHERE s.project_id = project_uuid;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Add comment for documentation
+COMMENT ON MIGRATION IS 'Performance optimization with additional indexes and statistics views';