CreateQuery test_variable (children 3)
 Identifier test_variable
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration v (children 1)
    DataType Variant (children 1)
     ExpressionList (children 5)
      DataType String
      DataType UInt32
      DataType IPv6
      DataType Bool
      DataType DateTime64
 Storage definition (children 1)
  Function Memory
