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Luckily, I have already done a few; take a look and decide yourself:
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SELECT product_id
The planner is still using the sequential plan. Only the estimated number of rows has changed. Why? If you remember from previous article, it's where column level statistics come into play. Histogram bounds still match the original 10,000 rows we inserted.
В России запретили сайт с неожиданным рецептом из мыла14:34