Details
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Type:
Bug
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Status: Closed
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: 5.3.7
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Fix Version/s: 5.3.8
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Component/s: None
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Labels:None
Description
The query cache needs some extra space in the query string to store some
stuff.
But when the Query_log_event constructor allocates this space, it allocates
QUERY_CACHE_DB_LENGTH_SIZE bytes too few (2 bytes).
I am not sure if this is actually reproducible - it requires that a query is
binlogged with invoker (typically for CREATE VIEW and the like) and that it
hits the query cache (typically a SELECT). Otherwise two extra dummy bytes
becomes available due to zero terminators for invoker not being used.
But I will still fix the code to be at least more clear (and in case there is
some obscure way to hit this).
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