[fix](merge-on-write) fix duplicate keys occur when be restart #22437
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xiaokang
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For mow table, delete bitmap of stale rowsets has not been persisted. When be restart, duplicate keys will occur if read stale rowsets. Therefore, for the mow table, we do not allow reading the stale rowsets. Although this may result in VERSION_ALREADY_MERGED error when query after be restart, its probability of occurrence is relatively low.
liaoxin01
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…e#22437) For mow table, delete bitmap of stale rowsets has not been persisted. When be restart, duplicate keys will occur if read stale rowsets. Therefore, for the mow table, we do not allow reading the stale rowsets. Although this may result in VERSION_ALREADY_MERGED error when query after be restart, its probability of occurrence is relatively low.
morningman
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GoGoWen
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Proposed changes
Issue Number: close #xxx
For mow table, delete bitmap of stale rowsets has not been persisted. When be restart, duplicate keys will occur if read stale rowsets.
Therefore, for the mow table, we do not allow reading the stale rowsets. Although this may result in VERSION_ALREADY_MERGED error when query after be restart, its probability of occurrence is relatively low.
Further comments
If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...