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2018-09-25 Thread viirya
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@dilipbiswal The two examples shown in the PR description are allowed in 
current and this proposes to disallow them? I'm a bit confused by the 
description.


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2018-09-26 Thread viirya
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retest this please.


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2018-09-26 Thread ueshin
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cc @cloud-fan 


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[GitHub] spark issue #22544: [SPARK-25522][SQL] Improve type promotion for input argu...

2018-09-27 Thread dilipbiswal
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@cloud-fan Are we targeting this for 2.4 ? If so, i was wondering if we 
should make a restricted fix that affects only this function by adding a case 
in `FunctionArgumentConversion` for 2.4 while keeping this fix for master. Pl. 
let me know what you think.


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2018-09-27 Thread cloud-fan
Github user cloud-fan commented on the issue:

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I'm merging it to master, please send another PR to 2.4, without touching 
the `findTightestCommonType`. Thanks!


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2018-09-27 Thread dilipbiswal
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@cloud-fan @ueshin @viirya Thank you very much.


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[GitHub] spark issue #22544: [SPARK-25522][SQL] Improve type promotion for input argu...

2018-09-27 Thread cloud-fan
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After thinking more, I'm going it to merge it to 2.4 directly, because:
1. `ImplicitTypeCasts` handles array type but not map type, which looks a 
bug to me
2. I checked all the implementations of `ImplicitCastInputTypes`, 
`ElementAt` is the only one that sets a concrete map type as the input type. So 
this change only affects `ElementAt`
3. the test cases added in this PR iterate all the cases and have a very 
good converage.


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2018-09-27 Thread dilipbiswal
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@cloud-fan Sounds good Wenchen. Thanks for the detailed analysis.


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