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query to Chris ..regarding Block nested loop join   Message List  
Reply | Forward Message #152 of 156 |
Hi Chris

While taking inputs from pipe to fill n/2 pages from left and right pipe

Do we need to create two seperate threads for taking the inputs from

left and right pipe?

and which ever fills first we should write it to disk to tepmp file.

And then do join operation.

Or the buffers are to be filled sequentially ...

that is fill left buffer first and then right .



Regards
Umang






Sat Mar 22, 2008 12:33 am

umangdinesh
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Message #152 of 156 |
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Hi Chris While taking inputs from pipe to fill n/2 pages from left and right pipe Do we need to create two seperate threads for taking the inputs from left and...
umangdinesh
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Mar 22, 2008
12:33 am

Well, if you only use one thread, probably no one will ever know, except that your program may be a bit slower! But ideally, you would have one thread for each...
Christopher Jermaine
chris.jermaine
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Mar 22, 2008
1:48 pm

Hi all-- First, the important one... it looks like I will be stuck out of town and will not make it back for class tomorrow due to a missed flight. Since this...
Chris Jermaine
chris.jermaine
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Mar 24, 2008
1:05 am
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