some questions

Martin Kersten

2012-09-12 00:04:31 UTC

Hi

There is no such thing as a free lunch, certainly not for a 1M lines
of code base :)

Post by guangliang peng
hi,
i am a new learner of monetdb.And i have some questions below.
1 when I ran some queries on monetdb,I found that the memory was
automatically released by monetdb.And it needs extra time to load data into
memory again.I don't know why and if there are some triggers in monetdb?
Thank you for helps.

Understand how memory mapped files
work on an operating system tells most of the story.

Post by guangliang peng
2 how do i see the join path when i run a query?

Use the Plan/explain/Trace/debug or stethoscope features of the system
to look for the {left,semi}join[Path] calls and the 'dot' file generated from the plans.

Post by guangliang peng
3 what's source code structure? i want to read the source code .And any advices for better understanding source code.

Read the MonetDB papers and PhD thesises.

regards, Martin

Post by guangliang peng
thank,
guangliang peng
------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Monetdb-developers mailing list
https://lists.sourceforge.net/lists/listinfo/monetdb-developers