database/sql: simplify retry logic when the connection is bad
Simplify retry logic when got bad connection
Change-Id: I92494c6c020576ec01bc4868334ee920ded7aa57
GitHub-Last-Rev:
7499b0c9419a31c9adce6d5096a1924aa3612f1d
GitHub-Pull-Request: golang/go#54043
Reviewed-on: https://go-review.googlesource.com/c/go/+/419182
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>