Use this request to append multiple columns to your table at once. As for the request body, refer to the previous call, Insert Column, for a detailed list of column formats.
These requested and optional params can be used in the request body: table_name is the name of your table, required. columns is a list of columns you'd like to append, in each object of which:
column_name is the name of your new column, required; column_type is the type of your new column, required; data is the format setting of a special column, required in case. For details, refer to the call Insert Column.
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