add groupByExecutor main method doc #877
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qiaojialin
reviewed
Mar 3, 2020
| 取出来的数据再调用 `calcFromBatch` 方法完成遍历所有聚合函数对 `BatchData` 的计算。 | ||
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| `calcResult` 方法的主要逻辑： | ||
| ``` |
qiaojialin
reviewed
Mar 3, 2020
| } | ||
| ``` | ||
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| `readAndCalcFromPage` 方法是从当前打开的chunk中获取page的数据，并计算聚合结果，主要逻辑： |
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yes, thanks for you advice
qiaojialin
approved these changes
Mar 3, 2020
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