SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 1) Asterisk TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.settings_profile_elements Function like (children 1) ExpressionList (children 2) Identifier user_name Literal \'u%\\\\_01292\' ExpressionList (children 2) OrderByElement (children 1) Identifier user_name OrderByElement (children 1) Identifier index