Hi 大家好：
Flink版本1.9.0，
SQL1：
CREATE TABLE user_log (
user_id VARCHAR,
item_id VARCHAR,
category_id VARCHAR,
behavior VARCHAR,
ts TIMESTAMP
) WITH (
'connector.type' = 'kafka',
'connector.version' = 'universal',
'connector.topic' = 'user_behavior',
'connector.startup-mode' = 'earliest-offset',
'connector.properties.0.key' = 'zookeeper.connect',
'connector.properties.0.value' = 'localhost:2181',
'connector.properties.1.key' = 'bootstrap.servers',
'connector.properties.1.value' = 'localhost:9092',
'update-mode' = 'append',
'format.type' = 'json',
'format.derive-schema' = 'true'
);
SQL2：
CREATE TABLE user_dist (
dt VARCHAR,
user_id VARCHAR,
behavior VARCHAR
) WITH (
'connector.type' = 'jdbc',
'connector.url' = 'jdbc:mysql://localhost:3306/flink-test',
'connector.table' = 'user_behavior_dup',
'connector.username' = 'root',
'connector.password' = ‘******',
'connector.write.flush.max-rows' = '1'
);
SQL3：
INSERT INTO user_dist
SELECT
dt,
user_id,
behavior
FROM (
SELECT
dt,
user_id,
behavior,
ROW_NUMBER() OVER (PARTITION BY dt, user_id, behavior ORDER BY proc desc )
AS rownum
FROM (select DATE_FORMAT(ts, 'yyyy-MM-dd HH:00') as
dt,user_id,behavior,PROCTIME() as proc
from user_log) )
WHERE rownum = 1;
在对SQL3执行tableEnv.sqlUpdate(SQL3)时，报错：
Exception in thread "main" org.apache.flink.table.api.TableException:
UpsertStreamTableSink requires that Table has a full primary keys if it is
updated.
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:114)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:50)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlan(StreamExecSink.scala:50)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:61)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:60)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:891)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at
org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:60)
at
org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:149)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.translate(TableEnvironmentImpl.java:439)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlUpdate(TableEnvironmentImpl.java:348)
请问去重现在不支持insert into select 语法吗？
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叶贤勋
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[email protected]
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