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If you were logged in you would be able to see more operations.
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Original Estimate:
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Unknown
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Remaining Estimate:
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Unknown
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Time Spent:
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Unknown
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| Resolution Date: |
23/Dec/07
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| Target: |
2.5.0
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Every blob contains a buffer of <page size> bytes allocated out of the engine heap, even if its size is actually smaller. For example, this query:
select cast('a' as blob sub_type text) from <really big table>
can easily cause a system swap or even a FB server crash due to out-of-memory condition.
This was discussed in fb-devel. I think we should find a way to reduce memory consumption for small temporary blobs, or maybe always store the level-0 blob data in the temporary space instead of the heap.
I'm scheduling this RFE for v2.5.
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Description
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Every blob contains a buffer of <page size> bytes allocated out of the engine heap, even if its size is actually smaller. For example, this query:
select cast('a' as blob sub_type text) from <really big table>
can easily cause a system swap or even a FB server crash due to out-of-memory condition.
This was discussed in fb-devel. I think we should find a way to reduce memory consumption for small temporary blobs, or maybe always store the level-0 blob data in the temporary space instead of the heap.
I'm scheduling this RFE for v2.5. |
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