feat: add query plan utility for SQLite queries

Author: harjot1singh

src/query-utils.ts

@@ -0,0 +1,10 @@
+import { LibSQLDatabase } from 'drizzle-orm/libsql'
+import { SQLiteRelationalQuery } from 'drizzle-orm/sqlite-core/query-builders/query'
+
+import relations from './relations'
+import * as schema from './schema'
+
+export const getQueryPlan = async <Q extends SQLiteRelationalQuery<'async', unknown>>(
+  db: LibSQLDatabase<typeof schema, typeof relations>,
+  query: Q,
+) => db.run(`EXPLAIN QUERY PLAN ${query.toSQL().sql}`).then((r) => r.rows.map((row) => row.detail))