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Add command "Client Capa subv2" to change behavior for SUBSCRIBE and SSUBSCRIBE commands: one call with only one response #962
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5d04e36
SUBSCRIBE implement one response 1st version
hwware 6c35227
Make networking and tracking test passed
hwware 3a5cb2f
fix some bugs and implement SSUBSCRIBE
hwware 9592039
Update test case for pubsub
hwware 15934aa
Adjust format and remove comment
hwware a09eee6
Adjust format for number
hwware e63c20f
Add one helper function for subscribe and ssubscribe command
hwware 7bb578b
Add client capa
hwware c97985f
Update test case for subv2 version
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So with RESP3, this is still no normal in-band replies and one push message (instead of one per channel). This is still the main problem of
[UN][P|S]SUBSCRIBE
IMO.To fix this behaviour, SUBSCRIBE should return an in-band reply. Either the list of channels as an array or map-reply, or just +OK and send the channels as push.
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I do not want to import this change in Valkey 8.0. I wish we could do this change on Valkey 8.X or 9 version. Error need to be correct, never late ^_^
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I think we cannot fix it ever. Only maybe with a CLIENT CAPA or RESP4.
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Yeah, I agree with this being a potentially significant breaking change. I think maybe CLIENT CAPA could fix it (or RESP4).
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I update the design, add a new parameter for client capa command, but the parameter name is just temporarily. If you have better name, please let me know or we can discuss it in the meeting