SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 1) Function equals (children 1) ExpressionList (children 2) Literal UInt64_2 Function multiSearchFirstPositionUTF8 (children 1) ExpressionList (children 2) Function materialize (children 1) ExpressionList (children 1) Literal \'абвгдежз\' Literal Array_[\'что\', \'в\', \'гдз\', \'бвг\'] TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.numbers Literal UInt64_10