Fix: panics in approx_percentile_cont()
aggregate function
#11934
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Which issue does this PR close?
Closes #11871.
Closes #11870.
Closes #11869.
Rationale for this change
There are several crashed bugs in
approx_median()
/approx_percentile_cont()
/approx_percentile_cont_with_weight()
Those functions all rely on
ApproxPercentileAccumulator
for implementation.This PR includes an edge case fix within
ApproxPercnetileAccumulator
, and more details can be found in the comments.What changes are included in this PR?
Are these changes tested?
sqllogictests, note 3 added test cases are equivalent to the ones reported in issues, but they are further reduced.
Are there any user-facing changes?