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[BugFix] Do not reuse input null and offset column for array_map #44226
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Signed-off-by: zihe.liu <[email protected]>
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[FE Incremental Coverage Report]✅ pass : 0 / 0 (0%) |
[BE Incremental Coverage Report]✅ pass : 14 / 14 (100.00%) file detail
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) Signed-off-by: zihe.liu <[email protected]> (cherry picked from commit 70db73d) # Conflicts: # be/src/exprs/vectorized/array_map_expr.cpp
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Why I'm doing:
Release version crashed stack:
ASAN version crashed stack:
What I'm doing:
ArrayMapExpr
's returned array column reuses null and offset column from the input column.As a result, two array columns in a chunk have the same null and offset column.
This is dangerous. For example, when filtering this chunk, the first array column will resize null and offset column, and the second array column will visit the resized part of null and offset column.
Fixes #issue
What type of PR is this:
Does this PR entail a change in behavior?
If yes, please specify the type of change:
Checklist:
Bugfix cherry-pick branch check: