encoding/csv: empty strings converted to "\"\"" by Write() and WriteAll()

[gabrieldain]

What does 'go version' print?
go version go1.2.1 linux/amd64

What steps reproduce the problem?
Writing a []string or [][]string which include empty strings ("") with
csv.Write() and csv.WriteAll()

http://play.golang.org/p/h7dZPYzaSa

What happened?
"" was written as "\"\"", thus output was:
a,b,c
1,"",3

What should have happened instead?
There should be an option to enable behaviour such that the ouput is:
a,b,c
1,,3

[gopherbot]

Comment 1:

CL https://golang.org/cl/86980044 mentions this issue.

[bradfitz]

Comment 2:

To think about for Go 1.4.

Labels changed: added release-go1.4.

Status changed to Accepted.

[rsc]

Comment 3:

It may be true that for some readers, in some situations, we don't NEED to.
But I don't see that it's a bug that we do.

Status changed to Thinking.

[rsc]

Comment 4:

Unless someone explains why a CSV reader cannot process the output, I believe the output
is correct (one of multiple correct answers, but there's no reason to make a change now).

Status changed to WorkingAsIntended.

[rsc]

Comment 5:

Andy Davis explained that Postgres cares deeply about `""` vs ``.
See 'CSV Format' section of http://www.postgresql.org/docs/9.0/static/sql-copy.html.
Will fix for Go 1.4.

Status changed to Accepted.

[gopherbot]

Comment 6:

CL https://golang.org/cl/164760043 mentions this issue.

[rsc]

Comment 7:

This issue was closed by revision 6ad2749.

Status changed to Fixed.