[
https://issues.apache.org/jira/browse/FLINK-10156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16645788#comment-16645788
]
ASF GitHub Bot commented on FLINK-10156:
----------------------------------------
sunjincheng121 commented on a change in pull request #6805:
[FLINK-10156][table] Deprecate Table.writeToSink()
URL: https://github.com/apache/flink/pull/6805#discussion_r224276845
##########
File path:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/stream/table/validation/TableSinkValidationTest.scala
##########
@@ -70,10 +72,11 @@ class TableSinkValidationTest extends TableTestBase {
val ds1 = StreamTestData.get3TupleDataStream(env).toTable(tEnv, 'a, 'b, 'c)
val ds2 = StreamTestData.get5TupleDataStream(env).toTable(tEnv, 'd, 'e,
'f, 'g, 'h)
+ tEnv.registerTableSink("testSink",new TestAppendSink)
Review comment:
Add a space
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> Drop the Table.writeToSink() method
> -----------------------------------
>
> Key: FLINK-10156
> URL: https://issues.apache.org/jira/browse/FLINK-10156
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Fabian Hueske
> Assignee: Fabian Hueske
> Priority: Major
> Labels: pull-request-available
>
> I am proposing to drop the {{Table.writeToSink()}} method.
>
> *What is the method doing?*
> The {{Table.writeToSink(TableSink)}} method emits a {{Table}} via a
> {{TableSink}}, for example to a Kafka topic, a file, or a database.
>
> *Why should it be removed?*
> The {{writeToSink()}} method was introduced before the Table API supported
> the {{Table.insertInto(String)}} method. The {{insertInto()}} method writes a
> table into a table that was previously registered with a {{TableSink}} in the
> catalog. It is the inverse method to the {{scan()}} method and the equivalent
> to an {{INSERT INTO ... SELECT}} SQL query.
>
> I think we should remove {{writeToSink()}} for the following reasons:
> 1. It offers the same functionality as {{insertInto()}}. Removing it would
> reduce duplicated API.
> 2. {{writeToSink()}} requires a {{TableSink}} instance. I think TableSinks
> (and TableSources) should only be registered with the {{TableEnvironment}}
> and not be exposed to the "query part" of the Table API / SQL.
> 3. Registering tables in a catalog and using them for input and output is
> more aligned with SQL.
>
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
