20 code samples in your docs no longer compile

I ran [snippetcheck](https://snippetcheck.dev) against the drizzle-orm docs — it type-checks every TypeScript sample in a docs site against the package's own published declarations, nothing executed.

Against `drizzle-orm@0.45.2`, 20 findings marked included after review:

| Kind | Symbol | Section | Page |
|---|---|---|---|
| removed-export | getColumns | drizzle-graphql > Customizing schema > SQLite > Step 4 - Pull Gel types to Drizzle schema | https://orm.drizzle.team/docs/guides/include-or-exclude-columns |
| removed-export | defineRelations | drizzle-graphql > Customizing schema > SQLite > Step 4 - Pull Gel types to Drizzle schema | https://orm.drizzle.team/docs/guides/include-or-exclude-columns |
| removed-export | mediumblob | Cache > --- > mediumblob | https://orm.drizzle.team/docs/mysql/column-types |
| removed-export | defineRelations | Drizzle relations > --- > One-to-many | https://orm.drizzle.team/docs/mysql/relations |
| removed-export | defineRelations | Drizzle relations > --- > Performance > Many-to-many Relationships | https://orm.drizzle.team/docs/mysql/relations |
| removed-export | defineRelations | Drizzle Queries | https://orm.drizzle.team/docs/mysql/rqb |
| removed-export | numeric | Drizzle Seed > Complex example | https://orm.drizzle.team/docs/mysql/seed-overview |
| unknown-option | codec | Codecs > How codecs work in customType() | https://orm.drizzle.team/docs/codecs |
| unknown-option | codec | Codecs > How codecs work in customType() | https://orm.drizzle.team/docs/codecs |
| renamed-property | update_counter | Codecs > --- > Default value | https://orm.drizzle.team/docs/column-types |
| removed-export | getColumns | Drizzle \<\> PostgreSQL > Get Typed Columns | https://orm.drizzle.team/docs/goodies |
| removed-export | defineRelations | Drizzle relations > --- > Performance > One-to-one Relationships | https://orm.drizzle.team/docs/relations |
| removed-property | withRLS | Row-Level Security (RLS) > Enable RLS | https://orm.drizzle.team/docs/rls |
| removed-export | defineRelations | Drizzle Queries | https://orm.drizzle.team/docs/rqb |
| removed-export | defineRelations | Drizzle relations > --- > Many-to-many | https://orm.drizzle.team/docs/singlestore/relations-v2 |
| removed-export | defineRelations | Drizzle Queries | https://orm.drizzle.team/docs/singlestore/rqb-v2 |
| removed-export | defineRelations | Drizzle relations > --- > One-to-many | https://orm.drizzle.team/docs/sqlite/relations |
| removed-export | defineRelations | Drizzle relations > --- > Performance > Many-to-many Relationships | https://orm.drizzle.team/docs/sqlite/relations |
| removed-export | defineRelations | Drizzle Queries | https://orm.drizzle.team/docs/sqlite/rqb |
| removed-export | getColumns | Drizzle Sustainability > Query examples > Insert data > Select data | https://orm.drizzle.team/docs/tutorials/drizzle-with-vercel |

Method: type-checked against the package's own `.d.ts` declarations, nothing executed. 136 of 4037 extracted TypeScript samples checked. Skipped: 88 before-example, 550 historical-section, 291 no-target-import, 61 unresolved-import, 12 unparseable.

Happy to share the full report, or re-run this after your next release.

— David

Start with the 20 findings in the issue and the linked documentation pages, especially the relations, codecs, column types, RLS, RQB, and goodies sections. Run snippetcheck against drizzle-orm@0.45.2 or review its full report, then update the affected TypeScript samples so all included examples type-check against the published declarations.

Written by the indexing model from the issue text.