Hi,

could you maybe post the query that caused the exception? I guess the exception is related to a time attribute [1] for the optimizer time attributes and timestamps make no difference however they have a slightly different data type that might have caused the error. I think is a bug that should be fixed, once we have more context.

Regards,
Timo


[1] https://ci.apache.org/projects/flink/flink-docs-master/dev/table/streaming.html#time-attributes


Am 14.09.18 um 10:49 schrieb Yuan,Youjun:

Hi,

I am getting the following error while submitting job to a cluster, which seems failed to compare 2 RelDateTypes, though they seems identical (from the error message), and everything is OK if I run it locally.

I guess calcite failed to compare the first field named *ts*, of type *TIMESTAMP(3)*, because:

  * If I don’t select ts, then everything goes fine
  * If I cast ts to other type, like SELECT cast(ts AS TIMESTAMP),
    then everything is fine
  * If I switch to EventTime, the issue also goes away. Currently it’s
    ProcessTime

I am using Flink 1.4, and submitting job to a standalone cluster.

Below are the error:

----------------------------------------------------------------------------------------------------------------------------------------------------------------

Caused by: org.apache.flink.client.program.ProgramInvocationException: The program caused an error:

at org.apache.flink.client.program.OptimizerPlanEnvironment.getOptimizedPlan(OptimizerPlanEnvironment.java:93)

at org.apache.flink.client.program.ClusterClient.getOptimizedPlan(ClusterClient.java:334)

at org.apache.flink.runtime.webmonitor.handlers.JarActionHandler.getJobGraphAndClassLoader(JarActionHandler.java:76)

at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.lambda$handleJsonRequest$0(JarRunHandler.java:69) ... 9 more

Caused by: java.lang.AssertionError: Conversion to relational algebra failed to preserve datatypes:

validated type:

RecordType(TIMESTAMP(3) NOT NULL ts, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" userId, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" batchId, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" projectId, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" vehicleId, CHAR(5) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" NOT NULL field0, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" rule0, DOUBLE threshold0, DOUBLE field_value0, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" alarmId) NOT NULL

converted type:

RecordType(TIMESTAMP(3) NOT NULL ts, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" userId, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" batchId, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" projectId, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" vehicleId, CHAR(5) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" NOT NULL field0, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" rule0, DOUBLE threshold0, DOUBLE field_value0, VARCHAR(65536) CHARACTER SET "UTF-16LE" COLLATE "ISO-8859-1$en_US$primary" alarmId) NOT NULL

...

at org.apache.calcite.sql2rel.SqlToRelConverter.checkConvertedType(SqlToRelConverter.java:451)

at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:567)

at org.apache.flink.table.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:106)

----------------------------------------------------------------------------------------------------------------------------------------------------------------

thanks in advance,

youjun


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