The number of points is less than required for feature
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最近在用AE写一个Web服务，程序逻辑上没有问题，数据库是SQL Server 2005，数据在SDE上面。我的Web服务里面有一个空间查询的模块，计算某一个条件下的FeatureCount，可是每次执行到这里就会报错或者结果为零，重装数据库、SDE，甚至系统都重装了，问题依旧。我把数据尝试不放进SDE里面，就是以ShapeFile的格式再次运行程序，发现执行顺利结果正确。
可是为什么到SDE里面就不行了呢？
百思不得其解啊，后来跟师弟说了这个情况之后，帮我调试了一下，把ISpatialFilter的Geometry由原来的IGeometry换成了IPolygon，结果也照样执行顺利，结果正确。虽然很高兴解决了问题，但是为什么会这样还是不的其解，估计是ESRI的Bug吧。
在Google中搜索The number of points is less than required for feature会有不同的解决方案，因为出现这一错误的问题比较多，所以具体情况具体分析了。
如果你在做空间查询的时候出现一些莫名其妙的错误，可以尝试一下本方案。Good Luck！
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