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I gave two presentations about Gearman at the Linux.conf.au. As part of the preparation for these talks, I created several sample applications. One of them, about remote replication administration, I will cover in a separate post. The most amazing one, which I cover here, is a quick and painless solution for multiple level crosstabs in MySQL. |
Some background is needed. Crosstabs (also called data
cubes or pivot tables, have been one of my favorite
hacks for long time. In 2001 I wrote an article about a simple …