Jefffrey commented on code in PR #18981:
URL: https://github.com/apache/datafusion/pull/18981#discussion_r2572712006
##########
datafusion/common/src/hash_utils.rs:
##########
@@ -484,6 +485,40 @@ fn hash_fixed_list_array(
Ok(())
}
+#[cfg(not(feature = "force_hash_collisions"))]
+fn hash_run_array<R: RunEndIndexType>(
+ array: &RunArray<R>,
+ random_state: &RandomState,
+ hashes_buffer: &mut [u64],
+ rehash: bool,
+) -> Result<()> {
+ let values = array.values();
+ let values_len = values.len();
+ let mut values_hashes = vec![0u64; values_len];
+ create_hashes(&[Arc::clone(values)], random_state, &mut values_hashes)?;
+
+ let run_ends = array.run_ends();
+ let mut prev_run_end = 0;
+
+ for (i, value_hash) in values_hashes.iter().enumerate().take(values_len) {
+ let run_end = run_ends.values()[i].as_usize();
Review Comment:
Perhaps we could zip the `run_ends.values().iter()` as part of the for
clause?
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