Hongshun Wang created FLINK-38030:
-------------------------------------
Summary: Table.explainSql throw exception: xxx cannot be cast to
class org.apache.flink.table.catalog.AbstractCatalog
Key: FLINK-38030
URL: https://issues.apache.org/jira/browse/FLINK-38030
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 2.0.0
Reporter: Hongshun Wang
Fix For: 2.1
My catalog is implements org.apache.flink.table.catalog.Catalog rather than
extends AbstractCatalog. When execute TableEnvironment.explainSql, exception
will be thrown:
{code:java}
java.lang.ClassCastException: class com.demo.FlinkCatalog cannot be cast to
class org.apache.flink.table.catalog.AbstractCatalog
(com.alibaba.fluss.flink.catalog.FlinkCatalog and
org.apache.flink.table.catalog.AbstractCatalog are in unnamed module of loader
'app')
at
org.apache.flink.table.planner.lineage.TableLineageDatasetImpl.<init>(TableLineageDatasetImpl.java:52)
at
org.apache.flink.table.planner.lineage.TableLineageUtils.createTableLineageDataset(TableLineageUtils.java:53)
at
org.apache.flink.table.planner.plan.nodes.exec.common.CommonExecTableSourceScan.translateToPlanInternal(CommonExecTableSourceScan.java:205)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase.translateToPlan(ExecNodeBase.java:168)
at
org.apache.flink.table.planner.delegation.StreamPlanner.$anonfun$translateToPlan$1(StreamPlanner.scala:85)
at
scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:286) at
scala.collection.Iterator.foreach(Iterator.scala:943) at
scala.collection.Iterator.foreach$(Iterator.scala:943) at
scala.collection.AbstractIterator.foreach(Iterator.scala:1431) at
scala.collection.IterableLike.foreach(IterableLike.scala:74) at
scala.collection.IterableLike.foreach$(IterableLike.scala:73) at
scala.collection.AbstractIterable.foreach(Iterable.scala:56) at
scala.collection.TraversableLike.map(TraversableLike.scala:286) at
scala.collection.TraversableLike.map$(TraversableLike.scala:279) at
scala.collection.AbstractTraversable.map(Traversable.scala:108) at
org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:84)
at
org.apache.flink.table.planner.delegation.PlannerBase.getExplainGraphs(PlannerBase.scala:627)
at
org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:103)
at
org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:51)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.explainInternal(TableEnvironmentImpl.java:753)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.explainSql(TableEnvironmentImpl.java:733)
at
org.apache.flink.table.api.TableEnvironment.explainSql(TableEnvironment.java:1155)
{code}
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