CREATE TABLE IF NOT EXISTS plugin_virenscan_files (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  attachment_id INTEGER NOT NULL,
  ticket_id INTEGER NULL,
  original_name VARCHAR(255) NOT NULL,
  stored_name VARCHAR(255) NOT NULL,
  status VARCHAR(20) NOT NULL,
  signature VARCHAR(255) NULL,
  message VARCHAR(255) NULL,
  quarantined INTEGER NOT NULL DEFAULT 0,
  scanned_at DATETIME NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS idx_plugin_virenscan_attachment ON plugin_virenscan_files (attachment_id);
CREATE INDEX IF NOT EXISTS idx_plugin_virenscan_status ON plugin_virenscan_files (status, quarantined)