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Improve case expr constant handling for when <scalar>
#14159
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| } | ||
| } | ||
| } | ||
| } else { |
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This is not actually possible as the previous version of the code expands out a constant to an array
ColumnarValue::Array(when_expr_value.into_array(batch.num_rows())?)| } | ||
| // WHEN [false | null] --> NULL | ||
| ColumnarValue::Scalar(_) => { | ||
| ColumnarValue::Array(when_expr_value.into_array(batch.num_rows())?) |
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This line has the effect of creating an array out of a scalar -- I remove that and added the special case handling for the values
case expr constant handlingcase expr constant handling for when <scalar>
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LGTM |
jayzhan211
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👍🏻
Draft as it builds on #14156Which issue does this PR close?
Rationale for this change
While reviewing #14156 I noticed that the code unecessairly expanded a constant to an array, and that I could update it avoid having any internal errors
What changes are included in this PR?
Are these changes tested?
yes, with new slt tests
Are there any user-facing changes?