24 Jan
2011
24 Jan
'11
8:17 a.m.
Hi, Lichao! On Jan 21, Lichao Xie wrote:
No, there is no such a API. The best you can do in your engine is to pay attention to TABLE::read_set and HA_EXTRA_KEYREAD which will allow you to reduce the amount of work you do per key. But still it will be the complete range scan - from the lower to the upper boundary or the range.
Yes. But I want to know that with this use is based on what consideration? the lock or something else?
I am sorry, I cannot understand you. Could you try to rephrase your question please? Regards, Sergei