#Aggregation

ORA-13861: Statistics aggregation for client identifier string is already enabled

文档解释ORA-13861:StatisticsaggregationforclientidentifierstringisalreadyenabledCause:AttempttoenableaclientidentifieraggregationwhichhasbeenalreadyenabledAction:Su...

ORA-30486: invalid window aggregation group in the window specification

文档解释ORA-30486:invalidwindowaggregationgroupinthewindowspecificationCause:IfthewindowspecificationisspecifiedusingRANGEoptionandtherearemultipleORDERBYexpression...

ORA-13862: Statistics aggregation for client identifier string is not enabled

文档解释ORA-13862:StatisticsaggregationforclientidentifierstringisnotenabledCause:AttempttodisableaclientidentifierstatisticsaggregationwhichwasneverenabledAction:S...

ORA-13864: Statistics aggregation for service (module/action) string is already enabled

文档解释ORA-13864:Statisticsaggregationforservice(module/action)stringisalreadyenabledCause:Attempttoenableaservice-levelstatisticsaggregationwhichhasbeenalreadyena...

MySQL Error number: 4034; Symbol: ER_GIS_DIFFERENT_SRIDS_AGGREGATION; SQLSTATE: 22S05

文档解释Errornumber:4034;Symbol:ER_GIS_DIFFERENT_SRIDS_AGGREGATION;SQLSTATE:22S05Message:Argumentstofunction%scontainsgeometrieswithdifferentSRIDs:%uand%u.Allgeomet...
IT技术学习 ·2023-06-25

MySQL Error number: 3575; Symbol: ER_CTE_RECURSIVE_FORBIDS_AGGREGATION; SQLSTATE: HY000

文档解释Errornumber:3575;Symbol:ER_CTE_RECURSIVE_FORBIDS_AGGREGATION;SQLSTATE:HY000Message:RecursiveCommonTableExpression‘%s’cancontainneitheraggregatio...
IT技术学习 ·2023-06-25

Efficient and Accurate Arbitrary-Shaped Text Detection with Pixel Aggregation Network(利用像素聚合网络进行高效准确的任意形状文本检测)

PSENetV2昨日刚出,今天翻译学习一下。  场景文本检测是场景文本阅读系统的重要一步,随着卷积神经网络的快速发展,场景文字检测也取得了巨大的进步。尽管如此,仍存在两个主要挑战,它们阻碍文字检测部署到现实世界的应用中。第一个问题是速度和准确性之间的平衡。第二个是对任意形状的文本实例进行建模。最近,已经提出了一些方法来...

Mongodb aggregation 基本操作示例

MongoDB二个主要的操作:一个是查询,另一个是统计。对于查询而言,主要是find()方法,再配合Filters组合多个查询条件。对于统计而言,则主要是aggregate操作,比如group、sum、avg、project、match……aggregate可以将上述操作组织成pipelin...