SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 6) ExpressionList (children 2) Function uniq (children 1) ExpressionList (children 1) Identifier SearchPhrase Function count (alias c) (children 1) ExpressionList 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) Identifier SearchPhrase ExpressionList (children 1) OrderByElement (children 1) Identifier c Literal UInt64_10