[chore] schema for price history

src/db/relations.ts

@@ -2,11 +2,18 @@ import { defineRelations } from "drizzle-orm";
 import * as schema from "./schema.ts";
 
 export const relations = defineRelations(schema, (r) => ({
+    priceHistory: {
+        sku: r.one.skus({
+            from: r.priceHistory.skuId,
+            to: r.skus.skuId,
+        }),
+    },
     skus: {
         card: r.one.cards({
             from: [r.skus.productId, r.skus.variant],
             to: [r.cards.productId, r.cards.variant],
         }),
+        history: r.many.priceHistory(),
     },
     cards: {
         prices: r.many.skus(),

src/db/schema.ts

@@ -97,6 +97,15 @@ export const skus = mysqlTable("skus", {
 	index("productIdIdx").on(table.productId, table.variant),
 ]);
 
+export const priceHistory = mysqlTable("price_history", {
+	skuId: int().default(0).notNull(),
+	calculatedAt: datetime(),
+	marketPrice: decimal({ precision: 10, scale: 2 }),
+},
+(table) => [
+	index("idx_price_history").on(table.skuId, table.calculatedAt),
+]);
+
 export const processingSkus = mysqlTable("processingSkus", {
 	skuId: int().primaryKey(),
 });