Support ENGINE_ATTRIBUTE option

[pingyu]

Feature Request

Is your feature request related to a problem? Please describe:

Describe the feature you'd like:

Support ENGINE_ATTRIBUTE option. This option is introduced to MySQL since v8.0.21.

See create table:

ENGINE_ATTRIBUTE and SECONDARY_ENGINE_ATTRIBUTE options are used to specify column attributes for primary and secondary storage engines. The options are reserved for future use.

The value assigned to this option is a string literal containing a valid JSON document or an empty string (''). Invalid JSON is rejected.

CREATE TABLE t1 (c1 INT ENGINE_ATTRIBUTE='{"key":"value"}');

ENGINE_ATTRIBUTE and SECONDARY_ENGINE_ATTRIBUTE values can be repeated without error. In this case, the last specified value is used.

ENGINE_ATTRIBUTE and SECONDARY_ENGINE_ATTRIBUTE values are not checked by the server, nor are they cleared when the table's storage engine is changed.

Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy: