snuyanzin commented on PR #28688:
URL: https://github.com/apache/flink/pull/28688#issuecomment-5093390167
Also this query is still failing (with empty path)
```sql
SELECT json_length('{}', '');
```
as
```
Caused by: java.lang.IllegalArgumentException: path can not be null or empty
at
org.apache.flink.shaded.com.jayway.jsonpath.internal.Utils.notEmpty(Utils.java:401)
at
org.apache.flink.shaded.com.jayway.jsonpath.internal.JsonContext.read(JsonContext.java:76)
at
org.apache.flink.table.runtime.functions.SqlJsonUtils.pathExists(SqlJsonUtils.java:453)
at
org.apache.flink.table.runtime.functions.SqlJsonUtils.jsonLength(SqlJsonUtils.java:410)
at StreamExecCalc$5.processElement(Unknown Source)
at
org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:75)
at
org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:50)
at
org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:29)
at
org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermarkContext.processAndCollect(StreamSourceContexts.java:389)
at
org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkContext.collect(StreamSourceContexts.java:484)
at
org.apache.flink.streaming.api.operators.StreamSourceContexts$SwitchingOnClose.collect(StreamSourceContexts.java:74)
at
org.apache.flink.streaming.api.functions.source.legacy.InputFormatSourceFunction.run(InputFormatSourceFunction.java:98)
at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:107)
at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:68)
```
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