Implement full text search in postgres

Hi. I stumbled upon this issue (https://github.com/drizzle-team/drizzle-orm/issues/247) which was very useful. I then wanted to add support for weights. I was able to achieve 99% of the task but the last 1% is where I'm stuck and need help.

Generated sql:

ALTER TABLE "table_name" ADD COLUMN "vec" "tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED";

ALTER TABLE "table_name" ADD COLUMN "vec" "tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED";

ALTER TABLE "table_name" ADD COLUMN "vec" "tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED";

ALTER TABLE "table_name" ADD COLUMN "vec" "tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED";

Expected:

ALTER TABLE "table_name" ADD COLUMN "vec" tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED;

ALTER TABLE "table_name" ADD COLUMN "vec" tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED;

ALTER TABLE "table_name" ADD COLUMN "vec" tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED;

ALTER TABLE "table_name" ADD COLUMN "vec" tsvector GENERATED ALWAYS AS (setweight(to_tsvector('english', coalesce(title, '')), 'A') || setweight(to_tsvector('english', coalesce(description, '')), 'B')) STORED;

https://github.com/drizzle-team/drizzle-orm/issues/247#issuecomment-1573541065

GitHub

Add Full-Text Search capability · Issue #247 · drizzle-team/drizzle...

This is a feature request for Full-Text Search functionality to perform a fulltext search on specific fields. Ideally with support for using GIN/GIST indexes to speed up full text search.

Implement full text search in postgres

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