Semantic optimization is posible?
От | Sebastián Ávila |
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Тема | Semantic optimization is posible? |
Дата | |
Msg-id | a87c9df10510240311u463661ecq@mail.gmail.com обсуждение исходный текст |
Ответы |
Re: Semantic optimization is posible?
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Список | pgsql-hackers |
Hello people, I'm thinking to add a stage before the optimizer and after the parser with a basic rewriter in order to flatten all nested queries using a pattern and table statistics, here I also can use assetions the database have. Another and complementary possibility is that I can make annotations on the query's data structure so that a later stage can use the semantic info to either prune the search space or to pick a specific query execution strategy. Summarizing, I want to add semantic optimization into the query processing execution. I need to hear your opinion and your ideas about this, because I have to choose between this project about semantic optimization and other about software analysis. My problem is that I don't know how much dificult can be to do semantic optimization and to do it well. What is your opinion about? I have to implement the project in 5 months. Thank you to all!!
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