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tidb/planner/cascades
Kenan Yao 149b8184a6 plan/cascades: generate logical property for Group (#8833)
Scheme info is generated when converting the initial logical
plan tree to Group, so in exploration phase, we need to fill
in the schema of newly built Group; stats info is generated in
lazy style when it is needed during implementation phase.
2018-12-28 15:45:36 +08:00
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