Martin
2f301cec42
🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
67 lines
2.5 KiB
SQL
67 lines
2.5 KiB
SQL
-- Database initialization script for Web Crawler
|
|
|
|
-- Crawl Jobs Table
|
|
CREATE TABLE IF NOT EXISTS crawl_jobs (
|
|
id INT AUTO_INCREMENT PRIMARY KEY,
|
|
domain VARCHAR(255) NOT NULL,
|
|
status ENUM('pending', 'running', 'completed', 'failed') DEFAULT 'pending',
|
|
total_pages INT DEFAULT 0,
|
|
total_links INT DEFAULT 0,
|
|
started_at TIMESTAMP NULL,
|
|
completed_at TIMESTAMP NULL,
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
|
|
INDEX idx_domain (domain),
|
|
INDEX idx_status (status)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
|
|
|
|
-- Pages Table
|
|
CREATE TABLE IF NOT EXISTS pages (
|
|
id INT AUTO_INCREMENT PRIMARY KEY,
|
|
crawl_job_id INT NOT NULL,
|
|
url VARCHAR(2048) NOT NULL,
|
|
title VARCHAR(500),
|
|
status_code INT,
|
|
content_type VARCHAR(100),
|
|
crawled_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
|
|
FOREIGN KEY (crawl_job_id) REFERENCES crawl_jobs(id) ON DELETE CASCADE,
|
|
INDEX idx_crawl_job (crawl_job_id),
|
|
INDEX idx_url (url(255)),
|
|
UNIQUE KEY unique_job_url (crawl_job_id, url(255))
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
|
|
|
|
-- Links Table
|
|
CREATE TABLE IF NOT EXISTS links (
|
|
id INT AUTO_INCREMENT PRIMARY KEY,
|
|
page_id INT NOT NULL,
|
|
crawl_job_id INT NOT NULL,
|
|
source_url VARCHAR(2048) NOT NULL,
|
|
target_url VARCHAR(2048) NOT NULL,
|
|
link_text VARCHAR(1000),
|
|
is_nofollow BOOLEAN DEFAULT FALSE,
|
|
is_internal BOOLEAN DEFAULT TRUE,
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
|
|
FOREIGN KEY (page_id) REFERENCES pages(id) ON DELETE CASCADE,
|
|
FOREIGN KEY (crawl_job_id) REFERENCES crawl_jobs(id) ON DELETE CASCADE,
|
|
INDEX idx_page (page_id),
|
|
INDEX idx_crawl_job (crawl_job_id),
|
|
INDEX idx_source_url (source_url(255)),
|
|
INDEX idx_target_url (target_url(255)),
|
|
INDEX idx_nofollow (is_nofollow)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
|
|
|
|
-- Queue Table for parallel processing
|
|
CREATE TABLE IF NOT EXISTS crawl_queue (
|
|
id INT AUTO_INCREMENT PRIMARY KEY,
|
|
crawl_job_id INT NOT NULL,
|
|
url VARCHAR(2048) NOT NULL,
|
|
depth INT DEFAULT 0,
|
|
status ENUM('pending', 'processing', 'completed', 'failed') DEFAULT 'pending',
|
|
retry_count INT DEFAULT 0,
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
|
|
processed_at TIMESTAMP NULL,
|
|
FOREIGN KEY (crawl_job_id) REFERENCES crawl_jobs(id) ON DELETE CASCADE,
|
|
INDEX idx_status (status),
|
|
INDEX idx_crawl_job (crawl_job_id),
|
|
UNIQUE KEY unique_job_url (crawl_job_id, url(255))
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
|