How to copy DistantHorizons.sqlite from dedicated server to multiplayer client cache?

The wiki says that multiplayer data is stored in
.minecraft/Distant_Horizons_server_data/SERVER_NAME/

I see folders like
9uba6r8pdi2bm@minecraft@@overworld
bhglokkc98r78@minecraft@@overworld
bhglokkc98r78@minecraft@@overworld
kjtpjkhddjbbs@minecraft@@overworld

where do I put DistantHorizons.sqlite?
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