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https://issues.apache.org/jira/browse/FLINK-9134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16568076#comment-16568076
 ] 

ASF GitHub Bot commented on FLINK-9134:
---------------------------------------

twalthr commented on a change in pull request #6484: [FLINK-9134] [table] 
upgrade Calcite dependency to 1.17
URL: https://github.com/apache/flink/pull/6484#discussion_r207497685
 
 

 ##########
 File path: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/catalog/ExternalCatalogSchema.scala
 ##########
 @@ -106,6 +109,10 @@ class ExternalCatalogSchema(
   def registerSubSchemas(plusOfThis: SchemaPlus) {
     catalog.listSubCatalogs().asScala.foreach(db => plusOfThis.add(db, 
getSubSchema(db)))
   }
+
+  override def getType(s: String): RelProtoDataType = null
+
+  override def getTypeNames: JSet[String] = ImmutableSet.of()
 
 Review comment:
   We should try to avoid guava. Use `java.util.Collections#unmodifiableSet` 
instead.

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> Update Calcite dependency to 1.17
> ---------------------------------
>
>                 Key: FLINK-9134
>                 URL: https://issues.apache.org/jira/browse/FLINK-9134
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Assignee: Shuyi Chen
>            Priority: Major
>              Labels: pull-request-available
>
> This is an umbrella issue for tasks that need to be performed when upgrading 
> to Calcite 1.17 once it is released.



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