Table: Products
+---------------+---------+ +| Column Name | Type | ++---------------+---------+ +| product_id | int | +| new_price | int | +| change_date | date | ++---------------+---------+ +(product_id, change_date) is the primary key (combination of columns with unique values) of this table. +Each row of this table indicates that the price of some product was changed to a new price at some date.+ +
+ +
Write a solution to find the prices of all products on 2019-08-16. Assume the price of all products before any change is 10.
Return the result table in any order.
+ +The result format is in the following example.
+ ++
Example 1:
+ +Input: +Products table: ++------------+-----------+-------------+ +| product_id | new_price | change_date | ++------------+-----------+-------------+ +| 1 | 20 | 2019-08-14 | +| 2 | 50 | 2019-08-14 | +| 1 | 30 | 2019-08-15 | +| 1 | 35 | 2019-08-16 | +| 2 | 65 | 2019-08-17 | +| 3 | 20 | 2019-08-18 | ++------------+-----------+-------------+ +Output: ++------------+-------+ +| product_id | price | ++------------+-------+ +| 2 | 50 | +| 1 | 35 | +| 3 | 10 | ++------------+-------+ ++