fix: extract correct schema w/out schemaName param

lib/schema-to-drizzle.js

@@ -176,15 +176,18 @@ True if JSONSchema value is required
 @typedef {import('@mapeo/schema').MapeoDoc} MapeoDoc
  */
 
+/**
+@typedef {{ [K in MapeoDoc['schemaName']]: Extract<MapeoDoc, { schemaName: K }> }} SchemaNameMap
+ */
+
 /**
 @template {JSONSchema7WithProps} TSchema
-@template {MapeoDoc['schemaName']} TSchemaName
-@template {Extract<MapeoDoc, { schemaName: TSchemaName }>} TObjectType
-@param {TSchemaName} schemaName
+@template {TSchema extends { properties: { schemaName: { enum: readonly string[] }}} ? TSchema['properties']['schemaName']['enum'][0] extends MapeoDoc['schemaName'] ? TSchema['properties']['schemaName']['enum'][0] : never : never} TSchemaName
+@template {Extract<MapeoDoc, TSchemaName>} TObjectType
 @param {TSchema} schema
 @returns {SchemaToDrizzleColumns<TSchema, TObjectType>}
  */
-export function jsonSchemaToDrizzleColumns(schemaName, schema) {
+export function jsonSchemaToDrizzleColumns(schema) {
   if (schema.type !== 'object' || !schema.properties) {
     throw new Error('Cannot process JSONSchema as SQL table')
   }

lib/schema.js

@@ -1,15 +1,8 @@
 import { sqliteTable } from 'drizzle-orm/sqlite-core'
-import { drizzle } from 'drizzle-orm/better-sqlite3'
-import Database from 'better-sqlite3'
 import { dereferencedDocSchemas as schemas } from '@mapeo/schema'
-import { jsonSchemaToDrizzleColumns as toColumns } from './schema-to-drizzle'
+import { jsonSchemaToDrizzleColumns as toColumns } from './schema-to-drizzle.js'
 
 export const observationTable = sqliteTable(
   'observation',
-  toColumns('observation', schemas.observation)
+  toColumns(schemas.observation)
 )
-
-const sqlite = new Database('sqlite.db')
-const db = drizzle(sqlite)
-
-const o = db.select().from(observationTable).get()