SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 1) Asterisk TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Subquery (children 1) SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 3) Identifier path Identifier name Identifier value TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.zookeeper ExpressionList (children 2) OrderByElement (children 1) Identifier path OrderByElement (children 1) Identifier name Function like (children 1) ExpressionList (children 2) Identifier path Function concat (children 1) ExpressionList (children 3) Literal \'/\' Function currentDatabase (children 1) ExpressionList Literal \'/1-insert-test%\'