NoahKusaba commented on code in PR #2862:
URL: https://github.com/apache/iceberg-rust/pull/2862#discussion_r3740870777
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crates/integrations/datafusion/src/table/mod.rs:
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@@ -56,6 +56,31 @@ use crate::physical_plan::scan::IcebergTableScan;
use crate::physical_plan::sort::sort_by_partition;
use crate::physical_plan::write::IcebergWriteExec;
+/// Computes the arrow schema to expose for reading `table` at the given
snapshot:
+/// the table's current schema for `None`, that snapshot's schema for `Some`,
so
+/// a time-travel read plans against the schema in effect at that snapshot.
+pub fn snapshot_arrow_schema(table: &Table, snapshot_id: Option<i64>) ->
Result<ArrowSchemaRef> {
Review Comment:
I found myself needing this snapshot_arrow_schema value also in my physical
codec for my iceberg-ballista crate, so I made a generic function to avoid code
duplication.
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