-

faas/migrations/001_initial_schema.down.sql

@@ -0,0 +1,23 @@
+-- Drop view
+DROP VIEW IF EXISTS function_stats;
+
+-- Drop triggers
+DROP TRIGGER IF EXISTS update_functions_updated_at ON functions;
+DROP FUNCTION IF EXISTS update_updated_at_column();
+
+-- Drop indexes
+DROP INDEX IF EXISTS idx_executions_created_at;
+DROP INDEX IF EXISTS idx_executions_executor_id;
+DROP INDEX IF EXISTS idx_executions_status;
+DROP INDEX IF EXISTS idx_executions_function_id;
+
+DROP INDEX IF EXISTS idx_functions_created_at;
+DROP INDEX IF EXISTS idx_functions_runtime;
+DROP INDEX IF EXISTS idx_functions_app_id;
+
+-- Drop tables
+DROP TABLE IF EXISTS executions;
+DROP TABLE IF EXISTS functions;
+
+-- Drop extension (only if no other tables use it)
+-- DROP EXTENSION IF EXISTS "uuid-ossp";

faas/migrations/001_initial_schema.up.sql

@@ -0,0 +1,84 @@
+-- Create UUID extension
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+-- Create functions table
+CREATE TABLE functions (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(255) NOT NULL,
+    app_id VARCHAR(255) NOT NULL,
+    runtime VARCHAR(50) NOT NULL,
+    image VARCHAR(500) NOT NULL,
+    handler VARCHAR(255) NOT NULL,
+    code TEXT,
+    environment JSONB DEFAULT '{}',
+    timeout INTERVAL NOT NULL DEFAULT '30 seconds',
+    memory INTEGER NOT NULL DEFAULT 128,
+    owner_type VARCHAR(50) NOT NULL,
+    owner_name VARCHAR(255) NOT NULL,
+    owner_owner VARCHAR(255) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    
+    UNIQUE(app_id, name)
+);
+
+-- Create executions table
+CREATE TABLE executions (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    function_id UUID NOT NULL REFERENCES functions(id) ON DELETE CASCADE,
+    status VARCHAR(50) NOT NULL DEFAULT 'pending',
+    input JSONB,
+    output JSONB,
+    error TEXT,
+    duration INTERVAL,
+    memory_used INTEGER,
+    container_id VARCHAR(255),
+    executor_id VARCHAR(255) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    started_at TIMESTAMP,
+    completed_at TIMESTAMP
+);
+
+-- Create indexes for better query performance
+CREATE INDEX idx_functions_app_id ON functions(app_id);
+CREATE INDEX idx_functions_runtime ON functions(runtime);
+CREATE INDEX idx_functions_created_at ON functions(created_at);
+
+CREATE INDEX idx_executions_function_id ON executions(function_id);
+CREATE INDEX idx_executions_status ON executions(status);
+CREATE INDEX idx_executions_executor_id ON executions(executor_id);
+CREATE INDEX idx_executions_created_at ON executions(created_at);
+
+-- Create trigger to update updated_at timestamp
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = CURRENT_TIMESTAMP;
+    RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+CREATE TRIGGER update_functions_updated_at 
+    BEFORE UPDATE ON functions 
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
+
+-- Insert some default runtime configurations
+COMMENT ON TABLE functions IS 'Function definitions and configurations';
+COMMENT ON TABLE executions IS 'Function execution records and results';
+
+-- Create a view for function statistics
+CREATE OR REPLACE VIEW function_stats AS
+SELECT 
+    f.id,
+    f.name,
+    f.app_id,
+    f.runtime,
+    COUNT(e.id) as total_executions,
+    COUNT(CASE WHEN e.status = 'completed' THEN 1 END) as successful_executions,
+    COUNT(CASE WHEN e.status = 'failed' THEN 1 END) as failed_executions,
+    COUNT(CASE WHEN e.status = 'running' THEN 1 END) as running_executions,
+    AVG(EXTRACT(epoch FROM e.duration)) as avg_duration_seconds,
+    MAX(e.created_at) as last_execution_at
+FROM functions f
+LEFT JOIN executions e ON f.id = e.function_id
+GROUP BY f.id, f.name, f.app_id, f.runtime;