joao-r-reis commented on code in PR #1915:
URL: 
https://github.com/apache/cassandra-gocql-driver/pull/1915#discussion_r2466481459


##########
session.go:
##########
@@ -199,6 +186,20 @@ func NewSession(cfg ClusterConfig) (*Session, error) {
        }
        s.connCfg = connCfg
 
+       if cfg.PoolConfig.HostSelectionPolicy == nil {
+               cfg.PoolConfig.HostSelectionPolicy = RoundRobinHostPolicy()
+       }
+       s.pool = cfg.PoolConfig.buildPool(s)
+       s.policy = cfg.PoolConfig.HostSelectionPolicy
+
+       // set the executor here in case the policy needs to execute queries in 
Init

Review Comment:
   👍 I'm actually curious to know what happens now with these changes, there is 
an executor but there is no hosts or connection pools, the ideal fix would be 
for the policy to get notified somehow that the session has finished 
initializing. Ideally the driver would do that on its own but without this I 
guess the user creating the policy has to write that code on the app side
   
   In any case we can keep these changes sure



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