openscholar/openscholar — pull request #5532 by shushu (2014-03-11 10:02:41+00:00)
Title: Boost courses semester filter block performance by using db_select().

#5437
The change gives 33% performance boost when testing performance of `economics/courses` page.
Before:
Time per request: 2989.085 [ms] (mean)
After:
Time per request: 1993.918 [ms] (mean)