stats' gc process wrongly deletes the statistics of tables that are not analyzed in extreme situation #57983
Description
Bug Report
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1. Minimal reproduce step (Required)
like #57901
It directly uses the condition no row in mysql.stats_histograms without checking whether the table meta exists to decide the existence the of table.
But actually, due to poor cooperation with the DDL module. It's possible that we lost the records in mysql.stats_histograms for a table if there are plenty of DDLs executed in a row.
2. What did you expect to see? (Required)
3. What did you see instead (Required)
4. What is your TiDB version? (Required)
current master