SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Function quantileExact (children 2)
     ExpressionList (children 1)
      Identifier a
     ExpressionList (children 1)
      Literal Float64_0.6
    Function quantileExact (children 2)
     ExpressionList (children 1)
      Identifier b
     ExpressionList (children 1)
      Literal Float64_0.6
    Function quantileExact (children 2)
     ExpressionList (children 1)
      Identifier c
     ExpressionList (children 1)
      Literal Float64_0.6
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier decimal
   Function greaterOrEquals (children 1)
    ExpressionList (children 2)
     Identifier a
     Literal UInt64_0