Re: [pg_trgm] Making similarity(?, ?) < ? use an index

I made some progress but I'm stuck. I'm focused on GiST for now. Please ignore sloppy naming for now.

I made the following changes to pg_trgm--1.2.sql:

It does indeed make PostgreSQL complain about undefined strategy 9. I added the following define to trgm.h:

It seems StrategyNumber is used in gtrgm_consistent and gtrgm_distance.

In gtrgm_consistent, I need change the way `nlimit` is obtained:

I need to add a case for ThresholdStrategyNumber and extract `nlimit` from the argument of `pg_trgm_match`. I'm not sure what to do in `gtrgm_distance`.

My questions:

1a. Is it possible to make `gtrgm_consistent` accept `text` or `pg_trgm_match` as the second argument?

1b. What's the equivalent of `match.match` and `match.threshold` (where `match` is a `pg_trgm_match`) in C?

2. What to do with `gtrgm_distance`?

Thanks for help.