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https://issues.apache.org/jira/browse/FLINK-20200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17493097#comment-17493097
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godfrey he commented on FLINK-20200:
------------------------------------
https://www.mail-archive.com/user-zh@flink.apache.org/msg10502.html
https://www.mail-archive.com/user-zh@flink.apache.org/msg14632.html
The above fix is incomplete. Because class {{SqlTableRef}} is not copied to
legacy planner, once both planner jars are in the lib directory, and the
classloader loads the classes in legacy planner first (the class
{{SqlTableRef}} in Calcite will be loaded, which is unexpected), the exception
will occur.
The solution is: copy {{SqlTableRef}} class in blink planner to legacy planner.
> SQL Hints are not supported in "Create View" syntax
> ----------------------------------------------------
>
> Key: FLINK-20200
> URL: https://issues.apache.org/jira/browse/FLINK-20200
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.11.2
> Reporter: shizhengchao
> Assignee: godfrey he
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.3, 1.12.0
>
>
> I have aready set the config option `table.dynamic-table-options.enabled` to
> be true, but "SQL Hints" are not supported in View syntax. I got an error:
> {code:java}
> Exception in thread "main" java.lang.UnsupportedOperationException: class
> org.apache.calcite.sql.SqlSyntax$6: SPECIAL
> at org.apache.calcite.util.Util.needToImplement(Util.java:967)
> at org.apache.calcite.sql.SqlSyntax$6.unparse(SqlSyntax.java:116)
> at org.apache.calcite.sql.SqlOperator.unparse(SqlOperator.java:333)
> at org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:470)
> at org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:101)
> at
> org.apache.calcite.sql.SqlSelectOperator.unparse(SqlSelectOperator.java:176)
> at org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:470)
> at org.apache.calcite.sql.SqlSelect.unparse(SqlSelect.java:246)
> at org.apache.calcite.sql.SqlNode.toSqlString(SqlNode.java:151)
> at org.apache.calcite.sql.SqlNode.toSqlString(SqlNode.java:173)
> at org.apache.calcite.sql.SqlNode.toSqlString(SqlNode.java:182)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.getQuotedSqlString(SqlToOperationConverter.java:784)
> at
> org.apache.flink.table.planner.utils.Expander$Expanded.substitute(Expander.java:169)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convertViewQuery(SqlToOperationConverter.java:694)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convertCreateView(SqlToOperationConverter.java:665)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:228)
> at
> org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
> at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:684)
> {code}
> The sql code is as follows：
> {code:java}
> drop table if exists SourceA;
> create table SourceA (
> id string,
> name string
> ) with (
> 'connector' = 'kafka-0.11',
> 'topic' = 'MyTopic',
> 'properties.bootstrap.servers' = 'localhost:9092',
> 'properties.group.id' = 'Test',
> 'scan.startup.mode' = 'group-offsets',
> 'format' = 'csv'
> );
> drop table if exists print;
> create table print (
> id string,
> name string
> ) with (
> 'connector' = 'print'
> );
> drop view if exists test_view;
> create view test_view as
> select
> *
> from SourceA /*+ OPTIONS('properties.group.id'='NewGroup') */;
> insert into print
> select * from test_view;
> {code}
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