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c-relay/db/schema.sql
2025-09-03 20:39:06 -04:00

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2.9 KiB
SQL

-- C Nostr Relay Database Schema
-- Simplified schema with just event and tag tables
-- SQLite database for storing Nostr events
-- ============================================================================
-- DATABASE SETTINGS
-- ============================================================================
PRAGMA encoding = "UTF-8";
PRAGMA journal_mode = WAL;
PRAGMA auto_vacuum = FULL;
PRAGMA synchronous = NORMAL;
PRAGMA foreign_keys = ON;
-- ============================================================================
-- EVENT TABLE
-- ============================================================================
-- Main event table - stores all Nostr events
CREATE TABLE IF NOT EXISTS event (
id TEXT PRIMARY KEY, -- Nostr event ID (hex string)
pubkey TEXT NOT NULL, -- Public key of event author (hex string)
created_at INTEGER NOT NULL, -- Event creation timestamp (Unix timestamp)
kind INTEGER NOT NULL, -- Event kind (0-65535)
content TEXT NOT NULL, -- Event content (text content only)
sig TEXT NOT NULL -- Event signature (hex string)
);
-- Event indexes for performance
CREATE INDEX IF NOT EXISTS event_pubkey_index ON event(pubkey);
CREATE INDEX IF NOT EXISTS event_created_at_index ON event(created_at);
CREATE INDEX IF NOT EXISTS event_kind_index ON event(kind);
CREATE INDEX IF NOT EXISTS event_pubkey_created_at_index ON event(pubkey, created_at);
CREATE INDEX IF NOT EXISTS event_kind_created_at_index ON event(kind, created_at);
-- ============================================================================
-- TAG TABLE
-- ============================================================================
-- Tag table for storing event tags
CREATE TABLE IF NOT EXISTS tag (
id TEXT NOT NULL, -- Nostr event ID (references event.id)
name TEXT NOT NULL, -- Tag name (e.g., "e", "p", "d")
value TEXT NOT NULL, -- Tag value
parameters TEXT, -- Additional tag parameters (JSON string)
FOREIGN KEY(id) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
);
-- Tag indexes for performance
CREATE INDEX IF NOT EXISTS tag_id_index ON tag(id);
CREATE INDEX IF NOT EXISTS tag_name_index ON tag(name);
CREATE INDEX IF NOT EXISTS tag_name_value_index ON tag(name, value);
CREATE INDEX IF NOT EXISTS tag_id_name_index ON tag(id, name);
-- ============================================================================
-- PERFORMANCE OPTIMIZATIONS
-- ============================================================================
-- Enable query planner optimizations
PRAGMA optimize;
-- Set recommended pragmas for performance
PRAGMA main.synchronous = NORMAL;
PRAGMA foreign_keys = ON;
PRAGMA temp_store = 2; -- use memory for temp tables
PRAGMA main.cache_size = 10000; -- 40MB cache per connection