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HPCC-31642 ParquetReader::readColumns not reading nested columns properly #18555

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merged 1 commit into from
Apr 26, 2024

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jackdelv
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@jackdelv jackdelv commented Apr 18, 2024

Type of change:

  • This change is a bug fix (non-breaking change which fixes an issue).
  • This change is a new feature (non-breaking change which adds functionality).
  • This change improves the code (refactor or other change that does not change the functionality)
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  • This change is a breaking change (fix or feature that will cause existing behavior to change).
  • This change alters the query API (existing queries will have to be recompiled)

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@jackdelv jackdelv requested review from ghalliday and dcamper April 18, 2024 16:26
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Jira Issue: https://hpccsystems.atlassian.net//browse/HPCC-31642

Jirabot Action Result:
Workflow Transition: Merge Pending
Updated PR

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@dcamper dcamper left a comment

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Looks good to me.

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@ghalliday ghalliday left a comment

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Looks sensible. One efficiency issue.

@@ -274,14 +310,16 @@ void divide_row_groups(const IThorActivityContext *activityCtx, __int64 totalRow
__int64 ParquetReader::readColumns(__int64 currTable)
{
auto rowGroupReader = queryCurrentTable(currTable); // Sets currentTableMetadata
for (int i = 0; i < expectedRecord->getNumFields(); i++)
for (int i = 0; i < getNumFields(expectedRecord); i++)
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efficiency: Assign getNumFields to a temporary first (otherwise it will be recalculated each time around the loop), or explicitly walk through the fields instead.

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Assigned result to a temporary

@jackdelv jackdelv requested a review from ghalliday April 22, 2024 17:38
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@jackdelv looks good. Please squash.

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@ghalliday Squashed.

@jackdelv jackdelv requested a review from ghalliday April 23, 2024 14:19
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@jackdelv should this target 9.6.x?

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@ghalliday Yes, I think it should since this is a bug fix.

@jackdelv jackdelv changed the base branch from master to candidate-9.6.x April 23, 2024 15:57
@jackdelv jackdelv requested a review from ghalliday April 23, 2024 17:44
@ghalliday ghalliday merged commit f7b5d42 into hpcc-systems:candidate-9.6.x Apr 26, 2024
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3 participants