fix(dropPrefix): check properly if the key is present in a table #1623
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There may be a case when the table contains [0x0000,...., 0xffff]. If we are searching for
k=0x0011
, we should not directly infer that k is present. It may not be present. This leads to the triggering of compaction at the time of DropPrefix which is quite expensive.This PR fixes the issue by confirming that case by searching inside the table for the prefix.
Fix for v2.2007 in #1622
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