I used this information, but I made a small change when I needed to use notNull.

The notNull method didn't work in this case:

price: 
  decimal("price", {
    precision: 10,
    scale: 2,
  }).notNull() as unknown as PgDoublePrecisionBuilderInitial<"price">

So I changed it to:

price: (
  decimal("price", {
    precision: 10,
    scale: 2,
  }) as unknown as PgDoublePrecisionBuilderInitial<"price">
).notNull()