PUT on leaf not working as expected

[anand-kumar-subramanian]

curl -v -X PUT "http://10.175.125.43:4443/restconf/data/openconfig-network-instance:network-instances/network-instance=INST2/protocols/protocol=IGMP_SNOOPING,IGMP-SNOOPING/openconfig-network-instance-deviation:igmp-snooping/interfaces/interface=Vlan10/config/version" -H "accept: application/yang-data+json" -H "Content-Type: application/yang-data+json" -d "{ "openconfig-network-instance-deviation:version": 1}"

In the above REST API, the target node of the URI is leaf "version", but when we execute this command, transformer replaces the whole redis table with leaf version with value 1, that is it removes all the entries in the redis db table and set only the leaf version value.

Actually transformer should update only the field version and should not remove other fields in the redis db table as the target node of the URI is leaf version.

Before issuing this request:
HGETALL CFG_L2MC_TABLE|Vlan10

1. "version"
2. "3"
3. "query-interval"
4. "50"

After we execute the above REST API:
HGETALL CFG_L2MC_TABLE|Vlan10

1. "version"
2. "1"

[s-mari]

Currently sub-oper support is not there. This issue will be resolved with sub-oper support.
We are currently working on it.

[kwangsuk]

@anand-kumar-subramanian
Can you please share the log?
The data map passed to the common-app should have a specific filed, i.e. version, with REPLACE. The common-app calls the d.SetEntry() to replace the version field only, expecting that the d.SetEntry updates the given filed only, and not intended to change the remaining fields. As confirmed with @a-barboza

[a-barboza]

@anand-kumar-subramanian
Can you please share the log?
The data map passed to the common-app should have a specific filed, i.e. version, with REPLACE. The common-app calls the d.SetEntry() to replace the version field only, expecting that the d.SetEntry updates the given filed only, and not intended to change the remaining fields. As confirmed with @a-barboza

@kwangsuk, @anand-kumar-subramanian : d.SetEntry() will set the value of the hash exactly as provided. Please see the HLD under: https://github.com/project-arlo/SONiC/blob/master/doc/mgmt/Management%20Framework.md#32264-db-access-layer, DB access layer, Redis, CVL Interaction: very first row. It gives the exact algorithm. If you want to modify only one field in an existing hash, please use the 3rd row for d.ModEntry().