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PgBouncer and prepared statements | Yet Another Dev Blog

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This mode is less performant (it’s a default mode). When a client connects, a server connection will be assigned to it for the whole duration it stays connected. So it does not utilize connections properly. This mode is more performant as it gives a connection for every transaction started and returns it to the pool when the transaction is being committed or rolled back. So it lets you utilize connections better. So, we could just turn on transaction pooling and be happy, right? Not exactly. Everyone uses prepared statements, I hope. They help you to avoid SQL injections as a class. And there is a problem with it. How prepared statements work? DB client sends a prepare statement request, gets statement ID, and after that, it just makes another request with that statement ID and parameters that should replace placeholders in the request. The problem is that in transaction mode you always receive a new connection from the pool. And often you run into a situation where you get different c

PgBouncer and prepared statements | Yet Another Dev Blog Home Databases PgBouncer and prepared statements PgBouncer and prepared statements 06, 05, 2019 bullgare Databases , golang No Comments. Table of Contents Toggle In our system, we use connection pooler called PgBouncer as a proxy to PostgreSQL server. PgBouncer has two main modes Session pooling mode This mode is less performant (it’s a default mode). When a client connects, a server connection will be assigned to it for the whole duration it stays connected. So it does not utilize connections properly. Transaction pooling mode Thi

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