CreateQuery 02266_auto_add_nullable (children 3)
 Identifier 02266_auto_add_nullable
 Columns definition (children 1)
  ExpressionList (children 6)
   ColumnDeclaration val0 (children 2)
    DataType Int8
    Literal NULL
   ColumnDeclaration val1 (children 2)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int8
    Literal NULL
   ColumnDeclaration val2 (children 2)
    DataType UInt8
    Literal NULL
   ColumnDeclaration val3 (children 2)
    DataType String
    Literal NULL
   ColumnDeclaration val4 (children 2)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType Int8
    Literal NULL
   ColumnDeclaration val5 (children 2)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType Int8
    Literal NULL
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList