Max Kellermann db27bb76e2 db: fix broken command "list ... group" ...

Grouping in the "list" command was completely broken from the start,
unlike "count group".  I have no idea what I have been thinking when I
wrote commit ae178c77bd, but it didn't
make any sense.

This commit is a rewrite of the feature.

For clients to be able to detect this feature, this commit also
increments the protocol version.

2018-10-22 13:08:24 +02:00

66 KiB

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