2.13.1.1 VARLEN Supported Expressions, Filters, Functions, and Operators

For supported functions and operators, refer to Section 2.12, “Supported Functions and Operators”.

VARLEN Supported Filters

• Column-to-column filters, excluding the <=> filter.

  Before MySQL 8.3.0, both columns must be VARLEN-encoded and column-to-column filters must use columns that are encoded with the same character set and collation.

• Column-to-constant filters, excluding the <=> filter.

  Before MySQL 8.3.0, the character set and collation of the constant variable must match the character set and collation of the constant.

VARLEN Supported Relational Operators

• GROUP BY

• JOIN

• LIMIT

• ORDER BY