SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 1) Function equals (children 1) ExpressionList (children 2) Literal UInt64_0 Function multiMatchAny (children 1) ExpressionList (children 2) Function materialize (children 1) ExpressionList (children 1) Literal \'abc\' Function materialize (children 1) ExpressionList (children 1) Function CAST (children 1) ExpressionList (children 2) Literal \'[]\' Literal \'Array(String)\' TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.numbers Literal UInt64_5