[fix](Nereids) merge request properties map of group should compare cost (#40819) #41726
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…ost (apache#40819) pick from master apache#40819 when do merge, we should update target requestPropertiesMap ONLY IF the cost of source's request property lower than target one. Otherwise, the requestPropertiesMap will not sync with lowestCostTable. Then, we will get wrong output property when get the final plan.
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run buildall |
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pick from master #40819
when do merge, we should update target requestPropertiesMap ONLY IF the cost of source's request property lower than target one. Otherwise, the requestPropertiesMap will not sync with lowestCostTable. Then, we will get wrong output property when get the final plan.