Cannot parse fields or complex expressions in generated columns

[andrewmcfaul]

When comparing schemas with generated columns, the comparison has an error if a field is specified using backticks or if the expression includes artithmetic operators like addition, division etc. This is similar to #153 but it only dealt with simple string values in the generated column expression.

Input SQL

CREATE TABLE test_generated (
id int(11) NOT NULL AUTO_INCREMENT,
log_ins int(11) NOT NULL DEFAULT '0',
user_count int(11) NOT NULL DEFAULT '0',
log_ins_per_user float GENERATED ALWAYS AS (log_ins / user_count) VIRTUAL,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Current output

found syntax error when parsing DDL "CREATE TABLE test_generated (
id int(11) NOT NULL AUTO_INCREMENT,
log_ins int(11) NOT NULL DEFAULT '0',
user_count int(11) NOT NULL DEFAULT '0',
log_ins_per_user float GENERATED ALWAYS AS (log_ins / user_count) VIRTUAL,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8": syntax error at position 217 near 'log_ins'

Expected output

Any valid expression should be allowed, including fields specified with backticks, operators like +, -, *, /, (, ), <, >, =, >=, <= and common SQL functions like CONCAT() etc.

[k0kubun]

Fixed the reported case at v0.11.12. Thank you.