Add warning and update wording for extended statistics#17670
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Co-authored-by: Grace Cai <qqzczy@126.com>
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Co-authored-by: Grace Cai <qqzczy@126.com>
| - Basic statistics: statistics such as histograms and Count-Min Sketch, which primarily focus on individual columns. They are essential for the optimizer to estimate the query cost. See [Introduction to Statistics](/statistics.md) for details. | ||
| - Extended statistics: statistics that focus on data correlations between specified columns, which guide the optimizer to estimate the query cost more precisely when the queried columns are correlated. |
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Note: I'll update the corresponding two lines for docs in Chinese in a coming PR.
[LGTM Timeline notifier]Timeline:
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/approve |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: lilin90 The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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In response to a cherrypick label: cannot checkout |
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In response to a cherrypick label: new pull request created to branch |
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