Added
client.datasets.listColumns,addColumn,updateColumn,deleteColumn,reorderColumns, andrestoreColumn— manage a dataset's column schema over the API. List the columns (passincludeRemovedto include soft-removed ones), add custom columns, rename any column, soft-delete a column (built-in or custom; its data is preserved), reorder columns, and restore a removed column. Adds theDatasetColumnandDatasetColumnSourcetypes and acolumnsfield onDataset.- Row writes accept custom column values:
client.datasets.insertRowstakes acustommap keyed by column identifier, andDatasetRownow carries acustomfield on reads (removed columns are omitted).