Please see the attached version 4.4 of HOT WIP patch. I have fixed couple of bugs in the earlier version posted. Other than that there are not any significant changes in the patch.
The row-level fragmentation had a bug where we were unintentionally sorting the line pointers array more than once. Also, the defragmented lengths were computed wrongly and was a source of many errors. Another bug fix was in the heap_hot_fetch() code path where we were asserting on finding a LP_DELETEd tuple in the hot chain. I later realized that this is not required and we should rather just assume that the chain is broken, something very similar to the xmax/xmin checks. Thanks, Pavan -- EnterpriseDB http://www.enterprisedb.com
NewHOT-v4.4.patch.gz
Description: GNU Zip compressed data
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