lsof -i -Pn | grep 9432
postgres 9212 user 7u IPv4 16446351 0t0 TCP 127.0.0.1:9432->127.0.0.1:44837 (ESTABLISHED)
postgres 9213 user 7u IPv4 16446354 0t0 TCP 127.0.0.1:9432->127.0.0.1:44838 (ESTABLISHED)
postgres 9393 user 7u IPv4 16448212 0t0 TCP 127.0.0.1:9432->127.0.0.1:49397 (ESTABLISHED)
postgres 9507 user 7u IPv4 16449703 0t0 TCP 127.0.0.1:9432->127.0.0.1:41786 (ESTABLISHED)
postgres 9508 user 7u IPv4 16449706 0t0 TCP 127.0.0.1:9432->127.0.0.1:41787 (ESTABLISHED)
postgres 22113 user 3u IPv4 16299038 0t0 TCP 127.0.0.1:9432 (LISTEN)
java 22159 user 101u IPv4 16446350 0t0 TCP 127.0.0.1:44837->127.0.0.1:9432 (ESTABLISHED)
java 22159 user 109u IPv4 16449702 0t0 TCP 127.0.0.1:41786->127.0.0.1:9432 (ESTABLISHED)
java 22159 user 159u IPv4 16446353 0t0 TCP 127.0.0.1:44838->127.0.0.1:9432 (ESTABLISHED)
java 22159 user 162u IPv4 16449705 0t0 TCP 127.0.0.1:41787->127.0.0.1:9432 (ESTABLISHED)
java 22159 user 182u IPv4 16448211 0t0 TCP 127.0.0.1:49397->127.0.0.1:9432 (ESTABLISHED)