On 06.07.22 10:42, Florents Tselai wrote:
> I have a beefy server (40+ worker processes , 40GB+ shared buffers) and a table holding (key text, text text,) of
around50M rows.
> These are text fields extracted from 4-5 page pdfs each.
>
> I’m adding the following generated col to keep up with tsvectors
>
> ALTER TABLE docs_text ADD COLUMN ts tsvector GENERATED ALWAYS AS (to_tsvector(’simple', left(text, 1048575))) STORED
>
> I expect this to be slow, but it’s been running for 18hrs already and I certainly hope I’ve done something wrong and
there’sa smarter way.
Maybe it's stuck on a lock? ALTER TABLE / ADD COLUMN requires an
exclusive lock on the table.