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Re: The performance issues caused by upgrading PostgreSQL to version 16.3.

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On Mon, Feb 17, 2025 at 2:55 AM 馬 騰飛 <ma-tengfei@xxxxxx> wrote:
Interestingly, when we isolate the problematic SQL statement and replace its parameters with actual values, it executes in just a few seconds in pgAdmin.
However, when we run the same SQL query through our application using Npgsql, it takes over ten minutes to complete.

Another reason could be a poor type casting by your driver/middleware. Can you share the query that is problematic? (also, since you mentioned a version upgrade, also make sure you run ANALYZE; post-upgrade.)

Cheers,
Greg

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