Replace the usage of the "instanceof" operator by a catch block.

Code Path:server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/AnalyzeVisitor.java

Multiple catch blocks of the appropriate type should be used instead of catching a general exception, and then testing on the type.

从 server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/AnalyzeVisitor.java 开始，检查使用 instanceof 测试异常类型的通用 catch 块。将该模式替换为针对适当异常类型的单独 catch，然后验证 server 现有的测试仍然通过。

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