[core] Data files with delete records should not be upgraded directly to max level #2962
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JingsongLi
reviewed
Mar 7, 2024
| // Why don't we keep addRowCount and deleteRowCount? | ||
| // Because in previous versions of DataFileMeta, we only keep rowCount. | ||
| // We have to keep the compatibility. | ||
| private final long totalRowCount; |
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Can we still use rowCount naming?
Because in schema, it is still _ROW_COUNT...
JingsongLi
reviewed
Mar 11, 2024
| // Because in previous versions of DataFileMeta, we only keep rowCount. | ||
| // We have to keep the compatibility. | ||
| private final long totalRowCount; | ||
| private final @Nullable Long addRowCount; |
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It is better to introduce deleteRowCount?
tsreaper
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JingsongLi
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Mar 15, 2024
| private final long rowCount; | ||
| private final @Nullable Long deleteRowCount; |
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Put this field to last class member.
I've tested by hand, that the old reader code can read this newly written table. |
zhu3pang
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Mar 29, 2024
When i use 0.5 code to read a table written by 0.8-SNAPSHOT, i got this exception. Is that as expected? @tsreaper |
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Purpose
Data files on max level should not have delete records. However when upgrading files to max level we currently does not perform this check.
Tests
TableWriteTest#testUpgradeToMaxLevel.API and Format
Yes.
DataFileMetais changed, and thusManifestEntryis changed. However as long as we can passPrimaryKeyFileStoreTableTest#testStreamingChangelogCompatibility02there should not be any issue.Documentation
No.