* 计算同一个月内, 指定项目, 指定错误类型中的错误分布数据(只取前MAX_DISPLAY_ERROR条) * @param {*} projectId * @param {*} startAt * @param {*} finishAt * @param {*} errorType
(projectId, startAt, finishAt, errorType, url, groupBy = QUERY_GROUP_BY_MINUTE)
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nothing calls this directly
no test coverage detected