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How to optimize (or get an alternative faster solution to) this recursive query that groups using recursive CTEs in Postgres?

I am on the quest to implement an NMS filter for labels in a Database. For context, here's a link to my first question, where I explain what NMS is and what I'm trying to achieve (I will edit that ...
J Pablo F's user avatar
0 votes
1 answer
116 views

Optimizing query that finds closest unique records

I've been trying out different queries to get the best performance when querying hierarchical data on Postgres 13.6. Fiddle: https://dbfiddle.uk/060f_h96 Explain: https://explain.dalibo.com/plan/...
mreaglejr's user avatar
4 votes
1 answer
2k views

How to optimize a recursive query in Postgresql?

I have a recursive query that takes too long - 30+ ms where doing the individual queries to extract the same data manually takes < 0.12 ms. So we're talking 250x as long. I have the following ...
Robert Elliot's user avatar
3 votes
2 answers
561 views

Optimization of recursive view

I have an optimization problem when using a recursive view on PostgreSQL. When I perform a trivial query using this view, the execution time is abnormally long. To expose my problem, here is a ...
Gabriel Valvin's user avatar