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[fix](hive)Fixed the issue of reading hive table with empty lzo files #43979

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@wuwenchi wuwenchi commented Nov 14, 2024

What problem does this PR solve?

When there is an empty lzo file in the hive table, Doris will report an error: "decompress made no progress. input_read_bytes: 0 decompressed_len: 0 input len: 4".
We should return the length read.

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  • Test

    • Regression test
    • Unit Test
    • Manual test (add detailed scripts or steps below)
    • No need to test or manual test. Explain why:
      • This is a refactor/code format and no logic has been changed.
      • Previous test can cover this change.
      • No code files have been changed.
      • Other reason
  • Behavior changed:

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    • Yes.
  • Does this need documentation?

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    • Yes.

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Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

  1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
  2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
  3. What features were added. Why was this function added?
  4. Which code was refactored and why was this part of the code refactored?
  5. Which functions were optimized and what is the difference before and after the optimization?

@wuwenchi
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run buildall

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clang-tidy review says "All clean, LGTM! 👍"

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TeamCity be ut coverage result:
Function Coverage: 37.93% (9886/26061)
Line Coverage: 29.13% (82602/283592)
Region Coverage: 28.26% (42459/150246)
Branch Coverage: 24.84% (21534/86686)
Coverage Report: http://coverage.selectdb-in.cc/coverage/48eaad64e3a75d8cc40cdaf1d725aa794df8d178_48eaad64e3a75d8cc40cdaf1d725aa794df8d178/report/index.html

@wuwenchi
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run buildall

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clang-tidy review says "All clean, LGTM! 👍"

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TeamCity be ut coverage result:
Function Coverage: 37.97% (9900/26073)
Line Coverage: 29.17% (82745/283641)
Region Coverage: 28.29% (42501/150253)
Branch Coverage: 24.86% (21550/86682)
Coverage Report: http://coverage.selectdb-in.cc/coverage/307377c52eb7f2d9de400dcdda67bb97f28b026c_307377c52eb7f2d9de400dcdda67bb97f28b026c/report/index.html

@wuwenchi
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run buildall

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clang-tidy review says "All clean, LGTM! 👍"

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TeamCity be ut coverage result:
Function Coverage: 37.97% (9901/26073)
Line Coverage: 29.16% (82706/283642)
Region Coverage: 28.28% (42499/150253)
Branch Coverage: 24.86% (21548/86682)
Coverage Report: http://coverage.selectdb-in.cc/coverage/9060d650f51fc0c4226385a8371db9d860481b0d_9060d650f51fc0c4226385a8371db9d860481b0d/report/index.html

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2 participants