[BugFix] fix array_map's error result when inputs are constant (backport #51833) #51942
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Why I'm doing:
What I'm doing:
Fixes https://github.com/StarRocks/StarRocksTest/issues/8662
introduced by: #51244
for scenarios where all inputs are constant, we will directly evaluate lambda expr based on the const column to avoid extra overhead. In this case, we will not unpack the const column or align the offset with capture columns.
However, there is an exception, such as
array_map(x->array_length(x) > c1+1, [[1,2,3]])
, where the lambda expression depends on other capture columns. In this case, we cannot follow the above strategy and still need to unpack the const and follow the normal process, otherwise it will get a wrong result.in this pr, I fixed it.
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:
This is an automatic backport of pull request #51833 done by [Mergify](https://mergify.com). ## Why I'm doing:
What I'm doing:
Fixes https://github.com/StarRocks/StarRocksTest/issues/8662
introduced by: #51244
for scenarios where all inputs are constant, we will directly evaluate lambda expr based on the const column to avoid extra overhead. In this case, we will not unpack the const column or align the offset with capture columns.
However, there is an exception, such as
array_map(x->array_length(x) > c1+1, [[1,2,3]])
, where the lambda expression depends on other capture columns. In this case, we cannot follow the above strategy and still need to unpack the const and follow the normal process, otherwise it will get a wrong result.in this pr, I fixed it.
What type of PR is this:
Does this PR entail a change in behavior?
If yes, please specify the type of change:
Checklist: