Hi, Fabian, i use time-windowed join according to the docs you give but still
have the problem.
Here is my flink sql look like:
SELECT
a.account account,
SUM(a.value) + SUM(b.value),
UNIX_TIMESTAMP(TUMBLE_START(a.producer_timestamp, INTERVAL '3'
MINUTE))
FROM
(SELECT
account,
value,
producer_timestamp
FROM
table1) a,
(SELECT
account,
value,
producer_timestamp
FROM
table2) b
WHERE
a.account = b.account AND
a.producer_timestamp BETWEEN b.producer_timestamp - INTERVAL '3'
MINUTE AND b.producer_timestamp)
group by
a.account,
TUMBLE(a.producer_timestamp, INTERVAL '3' MINUTE)
The exception is almost the same:
Rowtime attributes must not be in the input rows of a regular join. As a
workaround you can cast the time attributes of input tables to TIMESTAMP
before.
Please check the documentation for the set of currently supported SQL
features.
at
org.apache.flink.table.api.TableEnvironment.runVolcanoPlanner(TableEnvironment.scala:450)
at
org.apache.flink.table.api.TableEnvironment.optimizePhysicalPlan(TableEnvironment.scala:369)
at
org.apache.flink.table.api.StreamTableEnvironment.optimize(StreamTableEnvironment.scala:814)
at
org.apache.flink.table.api.StreamTableEnvironment.translate(StreamTableEnvironment.scala:860)
at
org.apache.flink.table.api.StreamTableEnvironment.writeToSink(StreamTableEnvironment.scala:344)
at
org.apache.flink.table.api.TableEnvironment.insertInto(TableEnvironment.scala:1048)
at
org.apache.flink.table.api.TableEnvironment.sqlUpdate(TableEnvironment.scala:962)
at
org.apache.flink.table.api.TableEnvironment.sqlUpdate(TableEnvironment.scala:922)
I think i use time-windowed join but flink told me its a regular join. Is
there anything wrong i haven't notice?
Jeremy
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