Create operator for postgres trigrams (fuzzy string matching)

Problem

For string comparisons, there are filter operators like equals, startsWith, endsWith and contains. Although these are already very useful, it would be nice to take full advantage of the pg_trgm extension. To my knowledge there is currently no way besides a raw SQL query to fuzzy match a string.

Update: I just realized that there are some issues going on about Full-Text-Search in prisma. So please just consider this as an API suggestion since ppl seem to be aware of the problem already (#7960)

Suggested solution

A suggested solution would be to create a new operator that can be used like the known string operators:

const searchString = "Meier"
const result = await prisma.user.findMany({
  where: {
    lastName: {
      similar: searchString,
      threshold: 0.45
    }
  }
});

// Would return last names "Meier", "Meyer", "Maier", ...

Alternatives

As an alternative, one could use a raw SQL query:

const searchString = "Meier";
const result = await prisma.$queryRaw(`SELECT * FROM User WHERE SIMILARITY(lastName, '${searchString}') > 0.45;`)

Material fuzzy string matching

https://www.postgresql.org/docs/13/pgtrgm.html https://www.freecodecamp.org/news/fuzzy-string-matching-with-postgresql/

[javiermanzano]

+1 this will be really helpful. Happy to help with this 😃

[chuckstock]

+1 for visibility and request for this feature.