bm25_create fails on an empty table

[amin3141]

The bm25_create function seems to expect that the underlying table has some data in it. Is the expectation that this function should be run after all data has been loaded into the table?

ERROR:  Failing row contains (x, description, x_description_bm255, x_description_bm255_index, 0.75, 1.2, hf, google-bert/bert-base-uncased, null, 0, 0).null value in column "words" of relation "pg_bm25" violates not-null constraint 

ERROR:  null value in column "words" of relation "pg_bm25" violates not-null constraint
SQL state: 23502
Detail: Failing row contains (x, description, x_description_bm255, x_description_bm255_index, 0.75, 1.2, hf, google-bert/bert-base-uncased, null, 0, 0).
Context: SQL statement "INSERT INTO bm_catalog.pg_bm25
    VALUES (tab, col, mat::regclass, (mat::text || '_index')::regclass, b, k1, tokenizer, model, ins_words, ins_docs, ins_dims)"
PL/pgSQL function bm25_create(regclass,text,text,text,text,real,real) line 44 at SQL statement