Many Open Connections Showing on sql.Open() ORA v4 GOLANG

[absBitm]

on creating orav4 connection using sql.Open(..) , i was concerned about the number of open connections , i saw there was more than 40 connections showing on creating & using a single connection through out my program and when my program finishes it again settled down to 0.

1. creation of connection : I have Used Singleton module (sync.Once.do) for the creation of solo connection on concurrent hits .
2. verifying number of connection : sudo netstat -C | grep ora4 | wc -l

Please Help !!