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7afe3b7d7c
This function creates filters for the base our first algo in Damus:
Called "last N note per pubkey". I don't have a better name for it.
This function generates a query in the form:
[
{"authors": ["author_a"], "limit": 1, "kinds": [1]
, {"authors": ["author_b"], "limit": 1, "kinds": [1]
, {"authors": ["author_c"], "limit": 1, "kinds": [1]
, {"authors": ["author_c"], "limit": 1, "kinds": [1]
...
]
Due to an unfortunate restriction currently in nostrdb and strfry, we
can only do about 16 to 20 of these at any given time. I have made
this limit configurable in strfry[1]. I just need to do the same in
nostrdb now.
[1] https://github.com/hoytech/strfry/pull/133
Changelog-Added: Add last_n_per_pubkey_from_tags algo function