text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_name_99 (geohash_length INTEGER, lat_error VARCHAR, lat_bits VARCHAR)
  ### Question:
  What is the highest geohash length when the lat error is ±0.00068, and the lat bits larger than 17?
  ### Answer:
  SELECT MAX(geohash_length) FROM table_name_99 WHERE lat_error = "±0.00068" AND lat_bits > 17