Improving Postgres keyword search to avoid zero results(PgvectorKeywordRetriever) #255
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thanks @maylad31 for the notebook! I will review it this week |
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If anything else is needed from my side, please let me know. But I guess this could be a helpful notebook for people. Many use postgres and when all other things of the pipeline are working and so easy to set up, zero results for keyword search should not be a blocker. By the way it is a nice library and your cookbooks are amazing, would love to contribute more in future 🙂 |
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As per haystack documents, PgvectorKeywordRetriever does not apply fuzzy search out of the box, so it's necessary to carefully formulate the query in order to avoid getting zero results. This tutorial will help people to understand how to improve the default implementation and how to better transform their query to avoid getting zero results.