Commits on Sep 18, 2023

1. fix(postgres): close socket actively when timeout happens during query ( …

   #11480)
   
   Currently, we do set/keep socket keepalive after every Postgres SQL query, based on keepalive timeout configured or lua_socket_keepalive_timeout(default 60s).
   This could go wrong under some cases, when a query encounters read timeout when trying to receive data from a database with high load, the query ends on Kong's side but the query result may be sent back after timeout happens, and the result data will be lingering inside the socket buffer, and the socket itself get reused for subsequent query, then the subsequent query might get the incorrect result from the previous query.
   
   The PR checks the query result's err string, and if any error happens, it'll try to close the socket actively so that the subsequent query will establish new clean ones.
   
   Fix FTI-5322
   
   (cherry picked from commit d2da4db)

   

   windmgc committed Sep 18, 2023
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