CREATE TABLE dns_execution_leases (
    id VARCHAR(64) NOT NULL,
    domain_id VARCHAR(64) NOT NULL,
    binding_id VARCHAR(64) NOT NULL,
    project_id VARCHAR(64) NOT NULL,
    account_id VARCHAR(64) NOT NULL,
    account_revision INT NOT NULL,
    provider VARCHAR(64) NOT NULL,
    credential_ref VARCHAR(255) NOT NULL,
    task_id VARCHAR(64) NOT NULL,
    attempt_id VARCHAR(64) NOT NULL,
    attempt_number INT NOT NULL,
    scheduled INT NOT NULL,
    status VARCHAR(32) NOT NULL,
    created_at DATETIME NOT NULL,
    updated_at DATETIME NOT NULL,
    PRIMARY KEY (id),
    UNIQUE KEY uq_dns_leases_attempt (task_id, attempt_id),
    INDEX idx_dns_leases_account (account_id, status),
    INDEX idx_dns_leases_domain (domain_id, status)
);