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Writing User-Defined Functions in PostgreSQL

Introduction
5. The post table – example
Side-effects in functions

Instruction

Good, but selecting all data from that table wasn't very informative. We've prepared a simple query to clarify how it works.

Exercise

Analyze the query in the template and its result. You can see every post from topics about hummus. You may play around here for a while, and when you're ready to go, just click the I'm done. Next exercise button.