Ignore null LEAD support for small batch sizes. #9445
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physical-expr
# Conflicts: # datafusion/physical-expr/src/window/lead_lag.rs
comphead
reviewed
Mar 4, 2024
| let end = if self.non_null_offsets.len() == (-self.shift_offset) as usize { | ||
| // How many rows needed further than the current row to get necessary lead result | ||
| let offset: usize = self.non_null_offsets.iter().sum(); | ||
| min(idx + offset + 1, n_rows) |
comphead
approved these changes
Mar 4, 2024
|
I plan to merge it as its a good fix |
wiedld
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Mar 21, 2024
* IGNORE NULLS support for LEAD * fix * fix * fix * Add lead support when pruned * Update lead_lag.rs Minor changes * Fix formatting --------- Co-authored-by: comphead <[email protected]> Co-authored-by: Mustafa Akur <[email protected]>
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Which issue does this PR close?
Closes #.
Rationale for this change
This PR is a subsequent work of the PR9419 by @comphead .
What changes are included in this PR?
This PR adds support for ignore nulls mode for lead function. When data is received in small batches.
Are these changes tested?
Yes
Are there any user-facing changes?