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Backport: Datatype::Null for ScalarValue::Null, CASE WHEN NULL #70

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Backport: Datatype::Null for ScalarValue::Null, CASE WHEN NULL #70

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Commits on Aug 15, 2022

  1. use non-null then result data type as return type for CaseExpr (apach… 

    …e#2810)
    @HuSen8891 @ovr
    HuSen8891 authored and ovr committed Aug 15, 2022
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  2. Add proper support for null literal by introducing `ScalarValue::Nu… 

    …ll` (apache#2364)

* introduce null

* fix fmt
    @WinkerDu @ovr
    WinkerDu authored and ovr committed Aug 15, 2022
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  3. Support binary mathematical operators work with NULL literals (apac… 

    …he#2610)

* binary mathematical operator with NULL

* code clean
    @WinkerDu @ovr
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  4. fix: Bitwise shift - overflow / null handling

    @ovr
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  5. Numeric, String, Boolean comparisons with literal NULL (apache#2481)

    @WinkerDu @ovr
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  6. feat: Upgrade Arrow to 13.0.0

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  7. tmp

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  8. Fix nullability calculation for CASE expressions (apache#2814) 

    * Fix nullability calculation for CASE statements

* Remove println
    @alamb @ovr
    alamb authored and ovr committed Aug 15, 2022
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  9. case when supports NULL constant (apache#2197) 

    * case when support  literal

* fmt fix

* code clean

Co-authored-by: duripeng <[email protected]>
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  10. Minor: remove code that is now in arrow (apache#2511)

    @alamb @ovr
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  11. fix NULL <op> column evaluation, tests for same (apache#2510)

    @alamb @ovr
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  12. Remove binary_array_op_dyn_scalar! (apache#2512)

    @alamb @ovr
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  13. Like, NotLike expressions work with literal NULL (apache#2627) 

    * like / not like work with NULL

* add more ut
    @WinkerDu @ovr
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