I have a problem when using calcite, which is 'relnode convert sql statement
I create a test like below
this relNode cannot convert sql statement.
I try to debug it, `org.apache.calcite.rel.rel2sql.SqlImplementor#convertConditionToSqlNode` may forgot to handle this case, which sqlKind is SqlKind.LIKE.
If it is a bug, I am willing to fix it.