[fix](mtmv) Add null-safety to getBaseViewsOneLevel for backward compatibility#64412
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yujun777 wants to merge 5 commits into
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[fix](mtmv) Add null-safety to getBaseViewsOneLevel for backward compatibility#64412yujun777 wants to merge 5 commits into
yujun777 wants to merge 5 commits into
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…atibility getBaseViewsOneLevel() could return null when an MTMV was created before the baseViewsOneLevel field was introduced, causing NPE when querying information_schema.view_dependency via Stream.concat(). Key changes: - getBaseViewsOneLevel() now falls back to baseViews when baseViewsOneLevel is null, consistent with getBaseTablesOneLevel() Unit Test: - MTMVRelationTest.testMTMVRelation
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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run buildall |
morrySnow
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Jun 11, 2026
| public Set<BaseTableInfo> getBaseViewsOneLevel() { | ||
| return baseViewsOneLevel; | ||
| // For compatibility, previously created MTMV may not have baseViewsOneLevel | ||
| return baseViewsOneLevel == null ? baseViews : baseViewsOneLevel; |
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add a gsonpostprocessor assign empty set to baseViewsOneLevel if it is null?
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这个文件中前面两个函数都是用一样的写法的。 保持一致的风格 ？
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TPC-H: Total hot run time: 29273 ms |
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TPC-DS: Total hot run time: 168946 ms |
…w-dependency-npe
Move the null-safety fallback from getBaseViewsOneLevel() to gsonPostProcess(), so the compatibility fix is applied once at deserialization time rather than on every getter call. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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run buildall |
Avoid shared reference between baseViews and baseViewsOneLevel by creating a new HashSet copy. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Fall back to empty set instead of null when baseViews is also null. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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run buildall |
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TPC-H: Total hot run time: 29165 ms |
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TPC-H: Total hot run time: 28985 ms |
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TPC-DS: Total hot run time: 169321 ms |
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TPC-DS: Total hot run time: 168542 ms |
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FE UT Coverage ReportIncrement line coverage |
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FE Regression Coverage ReportIncrement line coverage |
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Introduced by #56423, the field baseViewsOneLevel may be null for MTMVs created before that PR. This causes NPE when querying information_schema.view_dependency:
Cannot invoke java.util.Set.stream() because the return value of org.apache.doris.mtmv.MTMVRelation.getBaseViewsOneLevel() is null
baseViewsOneLevel is currently only used for tablefunction/MetadataGenerator, so this change is safe.