brancz commented on code in PR #6873:
URL: https://github.com/apache/arrow-rs/pull/6873#discussion_r1883593446
##########
arrow-schema/src/field.rs:
##########
@@ -38,6 +38,10 @@ pub struct Field {
name: String,
data_type: DataType,
nullable: bool,
+ #[deprecated(
+ since = "54.0.0",
+ note = "The ability to preserve dictionary IDs will be removed. With
it, all fields related to it."
+ )]
dict_id: i64,
dict_is_ordered: bool,
Review Comment:
I think that one is a bit less clear to me. I can see how this could be used
to optimize the processing of queries, and at least at the moment I can't think
of a better place for this, nor does it create problems in the same way as
`dict_id` does.
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