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[VL] Results are mismatch with vanilla Spark when using unix_timestamp(yyyy-MM-dd HH:mm:ss,SSS) #6227

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NEUpanning opened this issue Jun 26, 2024 · 3 comments
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[VL] Results are mismatch with vanilla Spark when using unix_timestamp(yyyy-MM-dd HH:mm:ss,SSS) #6227

NEUpanning opened this issue Jun 26, 2024 · 3 comments
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@NEUpanning
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NEUpanning commented Jun 26, 2024 •
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Backend

VL (Velox)

Bug description

Results are mismatch with vanilla Spark setting "spark.sql.legacy.timeParserPolicy" to "LEGACY" when using unix_timestamp(yyyy-MM-dd HH:mm:ss,SSS).

create table sql:

CREATE TABLE tbl(a STRING) ;
insert into tbl values("2022-01-04 14:52:40.017")

gluten result:

select unix_timestamp(a) from tbl;
> NULL

spark3.5 result:

set spark.sql.legacy.timeParserPolicy=LEGACY;
select unix_timestamp(a) from tbl;
> 1641279160

Spark version

Spark-3.5.x

Spark configurations

No response

System information

No response

Relevant logs

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@NEUpanning NEUpanning added bug Something isn't working triage labels Jun 26, 2024
This was referenced Jun 26, 2024
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@NEUpanning NEUpanning mentioned this issue Oct 30, 2024
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facebook-github-bot pushed a commit to facebookincubator/velox that referenced this issue Nov 14, 2024
@NEUpanning @facebook-github-bot
Allow partial date parsing when simple datetime formatter is used (#1…
5b274e3 
…1386)

Summary:
The Spark legacy datetime formatter allows parsing date from incomplete text,
seeing [code link](https://github.com/openjdk/jdk8/blob/master/jdk/src/share/classes/java/text/DateFormat.java#L351). This PR enables partial date parsing when the `LENIENT_SIMPLE`
or `STRICT_SIMPLE` datetime formatter is used.

Relates issues: #10354, [gluten#6227](apache/incubator-gluten#6227)

Pull Request resolved: #11386

Reviewed By: pedroerp

Differential Revision: D65948039

Pulled By: Yuhta

fbshipit-source-id: 0d17084f723ebeaded7278178982b5a10d9f9fed
@NEUpanning
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Resolved by velox#11386

@rui-mo
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rui-mo commented Nov 15, 2024

Hi @NEUpanning, thanks for your contribution. Do we have any unit test in Gluten to ensure this issue has been fixed?

@NEUpanning NEUpanning mentioned this issue Nov 18, 2024
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@NEUpanning
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@rui-mo Thanks for catching that. I've added unit tests in #7975

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