Replication Issue with empty strings when using Inverted Indices

[Sh4yy]

Hey folks! I’ve been trying to debug a problem that I see with my replicated cluster when using inverted indices.

I have an inverted index on a string field:

...
description String
INDEX desc_fts(description) TYPE inverted(0) GRANULARITY 1,
...

I have noticed if I insert an empty string value '' when the table is empty, replication starts failing because of the following exception:

<Error> InterserverIOHTTPHandler: std::exception. Code: 1001, type: std::__1::__fs::filesystem::filesystem_error, e.what() = filesystem error: in file_size: No such file or directory ["/var/lib/clickhouse/store/197/197b87b4-bc51-4c9a-951b-c63241f0d7bb/2_0_0_0/skp_idx_desc_fts.gin_sid"]

I have tested this on both 23.3 and 23.4 and got a similar result.