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| | For many years serializability was referred to as the gold standard of database isolation levels. It was the highest isolation level offered in the vast majority of commercial database systems (some highly widely-deployed systems could not even o...
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| | Every transactional system must execute, order, validate, and persist transactions.
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| Many software engineers use database indexes every day, but few of us really understand how they work. In this post I'll explain: How indexing works in Postgres using B-Trees What B-Trees are Why they are a good fit for this problem Indexes in Postgres Postgres actually offers 4 different kinds of indexes for different use cases. In this post I'll be focusing on the "normal" index, the kind you get by default when you run create index.