add "underlyings" materialized view

src/index.ts

@@ -10,14 +10,14 @@ import fastify from 'fastify'
 import cors from '@fastify/cors'
 
 const server = fastify()
-await server.register(cors, {});
+await server.register(cors, {origin:true});
 
 server.get('/ping', async (request, reply) => {
   return 'pong\n'
 })
 
 server.get('/option_quotes/underlyings', async (request, reply) => {
-  const underlyings = (await sql`SELECT DISTINCT "underlying" FROM "option_quote";`).map(x=>x.underlying);
+  const underlyings = (await sql`SELECT * FROM "underlyings";`).map(x=>x.underlying);
   reply.status(200).send(underlyings);
 })
 server.get<{

src/ingest.ts

@@ -161,4 +161,5 @@ export async function ingestOptions(sourceDataDir:string):Promise<void>{
   };
   console.log("creating index");
   await sql`CREATE INDEX ON "option_quote" USING btree ("underlying","expiration","type","strike","quote_date");`;
+  await sql`CREATE MATERIALIZED VIEW "underlyings" AS SELECT DISTINCT "underlying" FROM "option_quote";`;
 }