CreateQuery testNullableStates (children 3)
 Identifier testNullableStates
 Columns definition (children 1)
  ExpressionList (children 13)
   ColumnDeclaration ts (children 1)
    DataType DateTime
   ColumnDeclaration id (children 1)
    DataType String
   ColumnDeclaration string (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration float64 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Float64
   ColumnDeclaration float32 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Float32
   ColumnDeclaration decimal325 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Decimal32 (children 1)
       ExpressionList (children 1)
        Literal UInt64_5
   ColumnDeclaration date (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Date
   ColumnDeclaration datetime (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType DateTime
   ColumnDeclaration datetime64 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType DateTime64
   ColumnDeclaration int64 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int64
   ColumnDeclaration int32 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int32
   ColumnDeclaration int16 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int16
   ColumnDeclaration int8 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int8
 Storage definition (children 3)
  Function MergeTree
  Function toStartOfDay (children 1)
   ExpressionList (children 1)
    Identifier ts
  Identifier id