Always use readable pathname in DMFileReader (#5958)

[ti-chi-bot]

This is an automated cherry-pick of #5958

What problem does this PR solve?

Issue Number: close #5956

Problem Summary:

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• JinheLin
• Lloyd-Pottiger

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[Lloyd-Pottiger]

/merge

[ti-chi-bot]

@Lloyd-Pottiger: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: ee42819

[sre-bot]

Coverage for changed files

Filename                              Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
File/DMFileBlockInputStream.cpp            46                33    28.26%           2                 0   100.00%          43                 1    97.67%          12                 3    75.00%
File/DMFileReader.h                        10                 0   100.00%           4                 0   100.00%          10                 0   100.00%           4                 0   100.00%
ReadThread/ColumnSharingCache.cpp          22                 3    86.36%           5                 0   100.00%          42                 8    80.95%          14                 4    71.43%
ReadThread/ColumnSharingCache.h            69                 8    88.41%          13                 2    84.62%         118                13    88.98%          30                 8    73.33%
tests/gtest_segment_reader.cpp             40                14    65.00%           2                 0   100.00%         149                 0   100.00%          10                 8    20.00%
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                     187                58    68.98%          26                 2    92.31%         362                22    93.92%          70                23    67.14%

Coverage summary

Functions  MissedFunctions  Executed  Lines   MissedLines  Cover
18864      8115             56.98%    219619  83570        61.95%

full coverage report (for internal network access only)