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About Worklog
The MySQL Worklog are design specifications for some of the items that may be considered for future development.

WL#6037: Decrease malloc use in : alloc_root

Affects: Server-Prototype Only   —   Status: Un-Assigned   —   Priority: Medium 

my_malloc calls made when doing a normal PK lookup SELECT query

From Mikaels notes:

alloc_root
I think two memroots are allocated one per query on THD object +
1 per table used in query. Both get at least one malloc call since
the first buffer isn't cached in THD object or TABLE object


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