Update Dataset Content

Update the content of a dataset.

The index and column_name fields are treated as keys tied to a specific version of the dataset. As such, these values are considered immutable identifiers for the dataset's structure.

Edits are applied sequentially in list order, and each edit sees the table state left by the previous one. For example, after a rename_column edit renames col_a to col_b, any subsequent update_row in the same request must reference the column as col_b, not col_a.

The If-Match header is used to ensure that updates are only applied if the client's version of the dataset matches the server's version. This prevents conflicts from simultaneous updates. The ETag header in the response provides the new version identifier after a successful update.