[[queuedatabase]executeUpdate:@"CREATE TABLE IF NOT EXISTS ZCACHE (tile_hash INTEGER NOT NULL, cache_key VARCHAR(25) NOT NULL, last_used DOUBLE NOT NULL, data BLOB NOT NULL)"];
[[queuedatabase]executeUpdate:@"CREATE UNIQUE INDEX IF NOT EXISTS main_index ON ZCACHE(tile_hash, cache_key)"];
[[queuedatabase]executeUpdate:@"CREATE INDEX IF NOT EXISTS last_used_index ON ZCACHE(last_used)"];
[dbexecuteUpdate:@"CREATE TABLE IF NOT EXISTS ZCACHE (tile_hash INTEGER NOT NULL, cache_key VARCHAR(25) NOT NULL, last_used DOUBLE NOT NULL, data BLOB NOT NULL)"];
[dbexecuteUpdate:@"CREATE UNIQUE INDEX IF NOT EXISTS main_index ON ZCACHE(tile_hash, cache_key)"];
[dbexecuteUpdate:@"CREATE INDEX IF NOT EXISTS last_used_index ON ZCACHE(last_used)"];