I wanted to have my new code test against the real data in production. According to the typical company policy, I should not have any of my non-production code run against production data. Period. It makes a lot of sense. So, I decided to build my sample database in test environment and have subset of the production data loaded into it. I just needed one table to play around and I don't want to backup the whole table because the size of the table in production is too big for me. Using the popular postgresql, I expected this kind of request could be fulfilled easily but it eventually took me more than I had thought. Why so complicated? Did I miss anything? Let me show you what I did and please let me know if you have an easier way to achieve this.
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