
`customer` was never satisfied (or, satisfied in less than 0.01% of cases).

ANALYZE FORMAT=JSON
-------------------

ANALYZE FORMAT=JSON produces JSON output. It produces much more information
than tabular ANALYZE.

Notes
-----

* ANALYZE UPDATE or ANALYZE DELETE will actually make updates/deletes (ANALYZE
SELECT will perform the select operation and then discard the resultset).
* PostgreSQL has a similar command, EXPLAIN ANALYZE.
* The EXPLAIN in the slow query log feature allows MariaDB to have ANALYZE
output of slow queries printed into the slow query log (see MDEV-6388).

URL: https://mariadb.com/kb/en/analyze-statement/