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Support yyyyMMdd in GetTimestamp operator for LEGACY mode [databricks] #11449

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Support yyyyMMdd in GetTimestamp operator for LEGACY mode [databricks] #11449

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res-life
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@res-life res-life commented Sep 9, 2024 •
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closes #11445

This PR supports yyyyMMdd in GetTimestamp operator for LEGACY mode
Note: this PR introduced inconsistent behavior compared to Spark:

Spark behavior:

  "20240101"  =>  2024-01-01
  "202401 01" =>  2024-01-01
  "2024 0101" =>  invalid
  "202411"    =>  invalid
  "2024101"   =>  2024-10-01  // Note: 10-01 not 01-01
  "202411"    =>  invalid

GPU only support 8 digit strings.

Support yyyyMMdd in GetTimestamp operator for LEGACY mode
adbbefd 
Signed-off-by: Chong Gao <res_life@163.com>
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res-life commented Sep 9, 2024

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@res-life res-life changed the title Support yyyyMMdd in GetTimestamp operator for LEGACY mode Support yyyyMMdd in GetTimestamp operator for LEGACY mode [databricks] Sep 9, 2024
@res-life res-life marked this pull request as ready for review September 9, 2024 09:57
revans2
revans2 previously approved these changes Sep 9, 2024
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Building failed due to #11436

Errors:
[2024-09-09T10:14:38.020Z] - extract mortgage data *** FAILED ***
[2024-09-09T10:14:38.021Z] 0 did not equal 10000 (MortgageSparkSuite.scala:65)

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firestarman commented Sep 10, 2024 •
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Looks like this change will also enable yyyyMMdd support for all the relevant date time expressions, e.g. from_unix, data_format ...
We may need tests for them too.

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@sameerz sameerz added the feature request New feature or request label Sep 15, 2024
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Looks like this change will also enable yyyyMMdd support for all the relevant date time expressions, e.g. from_unix, data_format ... We may need tests for them too.

Updated cases.

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gerashegalov
gerashegalov reviewed Sep 19, 2024
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integration_tests/src/main/python/date_time_test.py Outdated
assert_gpu_and_cpu_are_equal_sql(
lambda spark : unary_op_df(spark, gen),
"tab",
"select unix_timestamp(a, 'yyyyMMdd'), from_unixtime(unix_timestamp(a, 'yyyyMMdd'), 'yyyyMMdd'), date_format(to_timestamp(a, 'yyyyMMdd'), 'yyyyMMdd') from tab",
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Consider using multi-line strings

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Done

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Looks good to me.

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build

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Spark 400 building failure is related to #11479

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@firestarman firestarman firestarman left review comments

@gerashegalov gerashegalov gerashegalov approved these changes

@revans2 revans2 revans2 left review comments

@winningsix winningsix Awaiting requested review from winningsix

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[FEA] Support format 'yyyyMMdd' in GetTimestamp operator
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@res-life @firestarman @gerashegalov @revans2 @sameerz