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https://issues.apache.org/jira/browse/FLINK-10229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16606852#comment-16606852
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ASF GitHub Bot commented on FLINK-10229:
----------------------------------------
hequn8128 commented on a change in pull request #6631: [FLINK-10229]
[sql-client] Support listing of views
URL: https://github.com/apache/flink/pull/6631#discussion_r215889007
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/TableEnvironment.scala
##########
@@ -587,6 +587,18 @@ abstract class TableEnvironment(val config: TableConfig) {
rootSchema.getTableNames.asScala.toArray
}
+ def listViews(): Array[String] = {
Review comment:
I think we can't add this function in `TableEnvironment`. Reasons are:
- `table.isInstanceOf[RelTable]` is not necessary a View. `RelTable` can be
registered through `registerTable()`.
- `TableEnvironment` currently doesn't support view. It is only supported in
SQL-Client now.
As a choice, you can list views directly from the `session` passed to the
`listViews()`. Also pay attention to the order.
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> Support listing of views
> ------------------------
>
> Key: FLINK-10229
> URL: https://issues.apache.org/jira/browse/FLINK-10229
> Project: Flink
> Issue Type: New Feature
> Components: SQL Client
> Reporter: Timo Walther
> Assignee: vinoyang
> Priority: Major
> Labels: pull-request-available
>
> FLINK-10163 added initial support of views for the SQL Client. According to
> other database vendors, views are listed in the \{{SHOW TABLES}}. However,
> there should be a way of listing only the views. We can support the \{{SHOW
> VIEWS}} command.
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