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HPCC-33155 Revisit Parquet Test Suite #19405

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HPCC-33155 Revisit Parquet Test Suite #19405

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jackdelv
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Change the plugin to throw an error if a file is not found when opening a file for reading

Change output filename of partitioned file parts. part_00_0.parquet -> part_0_of_table_0_from_worker_0.parquet
These files aren't meant to be read directly, but I think the new format makes more sense when trying to debug.

Update tests so that they are all being run and are able to use external files in testing/regress/download

Remove parquetString test and key file and move testing to parquetTypes.ecl

Update test cases in parquetTypes.ecl

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@jackdelv jackdelv requested a review from dcamper January 13, 2025 15:39
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Jira Issue: https://hpccsystems.atlassian.net//browse/HPCC-33155

Jirabot Action Result:
Workflow Transition To: Merge Pending
Updated PR

dcamper
dcamper reviewed Jan 13, 2025
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Just one question about the contents of a comment block.

testing/regress/ecl/parquetPartition.ecl
* ├── district=1
* │ ├── firstname=Alice
* │ │ └── city=New%20York
* │ │ └── part_0_of_table_0_from_worker_0.parquet
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These part... names are files? If so, they are all the same for every value combination. Is that correct?

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Yes, that is correct.

@dcamper dcamper self-requested a review January 13, 2025 16:01
dcamper
dcamper approved these changes Jan 13, 2025
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Looks good to me.

ghalliday
ghalliday reviewed Jan 14, 2025
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See comments/questions.

testing/regress/ecl/parquetCorrupt.ecl
DATASET([{0, 'Corrupt Parquet File', ''}], RECORDDEF),
CORRUPT_PARQUET);

OUTPUT(CORRUPT_RESULT);
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Without the output this workunit will not do anything.

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Fixed.

testing/regress/ecl/parquetEmpty.ecl
@@ -31,6 +36,3 @@ EMPTY_PARQUET := DATASET([], RECORDDEF);
ParquetIO.Write(EMPTY_PARQUET, filePath, TRUE);

read_data := ParquetIO.Read(RECORDDEF, filePath);

OUTPUT(read_data);
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With this deleted it will not read the file.

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Fixed.

@jackdelv
Add a sort to vector of FileReaders
111a0d2 
- createDirectoryIterator is used to list all matching Parquet files and the order is not guarenteed
- Fix parquetEmpty.ecl and parquetCorrupt.ecl by adding the OUTPUT statements back
@jackdelv jackdelv requested review from ghalliday and dcamper January 15, 2025 19:01
dcamper
dcamper approved these changes Jan 15, 2025
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Approved.

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@dcamper dcamper dcamper approved these changes

@ghalliday ghalliday Awaiting requested review from ghalliday

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@jackdelv @ghalliday @dcamper