when use the solve display error message
cannot find symbol
new TextFormatter<Customer2>() {
symbol: class TextFormatter
location: class TPCHQuery3
Note:
/home/hadoop/Desktop/sub_query/src/org/apache/flink/examples/java/relational/TPCHQuery3.java
uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error1 warning
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