hi,
@Danny Chan
我在1.10版本中确实触发到了这个bug，切到1.11版本貌似就没这问题了。简单解释下问题：双流join的case，右边流join后的结果字段在获取时貌似乱序了。
在 2020-07-13 10:42:12，"Jark Wu" <imj...@gmail.com> 写道：
>cc @Danny Chan <danny0...@apache.org> 也许 Danny 老师知道。
>
>On Thu, 9 Jul 2020 at 17:29, sunfulin <sunfulin0...@163.com> wrote:
>
>>
>> hi,
>> 我切到最新的1.11 release版本，跑同样的sql，没有抛出异常。想问下这有相关的issue么？想确认下原因。
>>
>>
>>
>>
>>
>>
>> 在 2020-07-09 16:53:34，"sunfulin" <sunfulin0...@163.com> 写道：
>> >hi,
>> >我使用flink 1.10.1
>> >blink-planner。运行以下SQL时，抛出异常。其中A和B分别是两个Kafka消息流。任务使用processtime。如果我把join的B表的select
>> > 具体字段名 修改为 select *，貌似就可以执行。但是拿到的B表字段顺序貌似是错乱的。请问这个问题是bug么？
>> >
>> >
>> >select A.recvTime, A.khh, A.live_id, A.fund_code as product_code,
>> >A.fund_name as product_name, cast(B.balance as double) as balance
>> >from (
>> >select toLong(behaviorTime, true) as recvTime, user_id,
>> >cast(regexp_extract(btnTitle, 'zbid=\{([^|]*)\}', 1) as int) as live_id,
>> >regexp_extract(btnTitle, 'fundname=\{([^|]*)\}', 1) as fund_name,
>> >regexp_extract(btnTitle, 'fundcode=\{([^|]*)\}', 1) as fund_code, proctime
>> >from kafka_zl_etrack_event_stream
>> >where pageId = 'xxxx'
>> > and eventId = 'click'
>> > and btnId = 'xxxx
>> > and CHARACTER_LENGTH(user_id) > 4
>> >) A
>> >left join
>> >(
>> >select customerNumber, balance, fundCode, lastUpdateTime, proctime
>> > from lscsp_sc_order_all
>> > where `status` = '4'
>> > and businessType IN ('4','5','14','16','17','18')
>> > and fundCode IS NOT NULL
>> > and balance IS NOT NULL
>> > and lastUpdateTime IS NOT NULL
>> >) B
>> >on A.user_id = B.customerNumber and A.fund_code = B.fundCode
>> >group by A.recvTime, A.user_id, A.live_id, A.fund_code, A.fund_name,
>> >cast(B.balance as double)
>> >
>> >
>> >
>> >
>> >
>> >
>> >Exception in thread "main" java.lang.AssertionError
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.getRootField(SqlToRelConverter.java:4448)
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter.adjustInputRef(SqlToRelConverter.java:3765)
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter.convertIdentifier(SqlToRelConverter.java:3737)
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter.access$2200(SqlToRelConverter.java:217)
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4796)
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4092)
>> >at org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:317)
>> >at
>> >org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4656)
>> >at
>> >org.apache.calcite.sql2rel.StandardConvertletTable.convertCast(StandardConvertletTable.java:522)
>> >at
>> >org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:63)
>>
>>
>>
>>
>>
