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AWS AmazonRDS documentation change

Service: AmazonRDS · 2025-07-25 · Documentation low

File: AmazonRDS/latest/AuroraUserGuide/rds-proxy-pinning.md

Summary

Added warning about DISCARD ALL command causing connection pinning

Security assessment

Documents a functional limitation of connection pooling, not a security vulnerability.

Diff

diff --git a/AmazonRDS/latest/AuroraUserGuide/rds-proxy-pinning.md b/AmazonRDS/latest/AuroraUserGuide/rds-proxy-pinning.md
index 7fe9b3013..4cf4c0645 100644
--- a//AmazonRDS/latest/AuroraUserGuide/rds-proxy-pinning.md
+++ b//AmazonRDS/latest/AuroraUserGuide/rds-proxy-pinning.md
@@ -175,0 +176,2 @@ RDS Proxy does not pin on transaction level advisory locks, specifically `pg_adv
+  * Discarding session state. If you use connection pooling libraries with `DISCARD ALL` query configured as a reset query, RDS Proxy pins your client connection on release. This reduces the proxy's multiplexing efficiency and might lead to umexpected results because the `DISCARD ALL` command can interfere with session state management.
+