mailmindlin commented on code in PR #22157:
URL: https://github.com/apache/datafusion/pull/22157#discussion_r3243827298
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datafusion/ffi/src/execution_plan.rs:
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@@ -74,6 +75,15 @@ pub struct FFI_ExecutionPlan {
/// underlying [`ExecutionPlan::metrics`] returned `None`.
pub metrics: unsafe extern "C" fn(plan: &Self) ->
FFI_Option<FFI_MetricsSet>,
+ /// Snapshot partition statistics. `partition == None` corresponds to
+ /// statistics over all partitions; `Some(idx)` corresponds to a specific
+ /// partition. The returned bytes are a prost-encoded
+ /// `datafusion_proto_common::Statistics`.
+ pub partition_statistics: unsafe extern "C" fn(
+ plan: &Self,
+ partition: FFI_Option<u64>,
Review Comment:
huh?
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