Add oracle prices index on ("marketId", "effectiveAtHeight") (backport …

…#2368) (#2372)

Co-authored-by: dydxwill <119354122+dydxwill@users.noreply.github.com>

indexer/packages/postgres/src/db/migrations/migration_files/20240926133526_create_oracle_prices_market_id_effective_at_height_index.ts

@@ -0,0 +1,17 @@
+import * as Knex from 'knex';
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.raw(`
+    CREATE INDEX CONCURRENTLY IF NOT EXISTS "oracle_prices_marketid_effectiveatheight_index" ON "oracle_prices" ("marketId", "effectiveAtHeight");
+  `);
+}
+
+export async function down(knex: Knex): Promise<void> {
+  await knex.raw(`
+    DROP INDEX CONCURRENTLY IF EXISTS "oracle_prices_marketid_effectiveatheight_index";
+  `);
+}
+
+export const config = {
+  transaction: false,
+};