ColumnMaskType
Unified column mask / derivation vocabulary. Schema-preserving value transforms are valid in every consumer. The derivation / aggregation entries (expr, sum, count, avg, min, max) change row/column shape and are only valid in View — AccessControlPolicy and PipelineData declare their allowed subset locally and reject the rest.
Unified column mask / derivation vocabulary. Schema-preserving value transforms are valid in every consumer. The derivation / aggregation entries (expr, sum, count, avg, min, max) change row/column shape and are only valid in View — AccessControlPolicy and PipelineData declare their allowed subset locally and reject the rest.
Possible values: [null, redact, partial_start, partial_end, hash, passthrough, expr, sum, count, avg, min, max]
"null"