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[BUG] Statistics is not precise due to not all info are retrieved #2111

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birdstorm opened this issue Sep 10, 2021 · 1 comment
Open

[BUG] Statistics is not precise due to not all info are retrieved #2111

birdstorm opened this issue Sep 10, 2021 · 1 comment
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In TiDB, there are now more tables about statistics than before.

e.g., some stats are not in stats_buckets, if the table is small, those statistics info will be in stats_top_n

We should synchronize the planner logic in TiDB and re-construct them in TiSpark.
@birdstorm birdstorm self-assigned this Sep 10, 2021
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This issue is also the main cause for some integration tests that are previously ignored concerning statistics.

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