SelectWithUnionQuery (children 2) ExpressionList (children 1) SelectQuery (children 5) ExpressionList (children 1) Identifier SearchPhrase TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier test.hits_s3 Function notEquals (children 1) ExpressionList (children 2) Identifier SearchPhrase Literal \'\' ExpressionList (children 1) OrderByElement (children 1) Identifier SearchPhrase Literal UInt64_10 Identifier Null