Dear all,
Hello,Recently I am intersting in query optimize, and have know that most
database's query optimizing methods contain two ：1. Rule Base Optimizer;
2.Cost Base Optimizer. I also know that MonetDB has two-level optimizing ,one
is relation algebra optimize and the other is MAL optimize when interprets a
sql.
I understand relation algebra optimize is no relationship with the
column-oriented special query optimize.MAL optimizer may be some relationship
with the column-oriented special query optimize. So I want to ask :MAL optimize
is also contain Rule Base Optimizer and Cost Base Optimizer? which optimizers
is the special query optimizer for the column-oriented and not for
tuple-oriented database?
Best regards!
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