was recently enabled by default in mysqldump, but the generation of
histogram statistics fails in devstack during this script's mysqldump
commands. The SQL statement and output of the failure:
mysql> SELECT \
COLUMN_NAME, JSON_EXTRACT(HISTOGRAM, '$."number-of-buckets-specified"') \
FROM information_schema.COLUMN_STATISTICS \
WHERE \
SCHEMA_NAME = 'edxtest' AND \
TABLE_NAME = 'agreements_integritysignature';
ERROR 1109 (42S02): Unknown table 'COLUMN_STATISTICS' in information_schema
b84e8937ff