[
https://issues.apache.org/jira/browse/FLINK-26051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
chuncheng wu updated FLINK-26051:
---------------------------------
Description:
hello,
i have 2 sqls. One sql (sql0) is "select xx from ( ROW_NUMBER stament)
where rn=1" and the other one (sql1) is "s{color:#505f79}elect ${fields}
from result where ${filter_conditions}{color}" . The fields quoted in sql1 has
one "case when" field .The two sql can work well seperately.but if they combine
it results the exception as follow . It happen in the occasion when logical
plan turn into physical plan :
{code:java}
org.apache.flink.table.api.TableException: The window can only be ordered in
ASCENDING mode.
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregate.translateToPlanInternal(StreamExecOverAggregate.scala:98)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregate.translateToPlanInternal(StreamExecOverAggregate.scala:52)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:59)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregateBase.translateToPlan(StreamExecOverAggregateBase.scala:42)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:39)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:59)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalcBase.translateToPlan(StreamExecCalcBase.scala:38)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:66)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:65)
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:65)
at
org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:103)
at
org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:42)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.explainInternal(TableEnvironmentImpl.java:630)
at org.apache.flink.table.api.internal.TableImpl.explain(TableImpl.java:582)
at
com.meituan.grocery.data.flink.test.BugTest.testRowNumber(BugTest.java:69)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
at
org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60){code}
In the stacktrace above , rownumber() 's physical rel which is
StreamExecRank In nomal has became StreamExecOverAggregate . The
StreamExecOverAggregate rel has a window= ROWS BETWEEN UNBOUNDED PRECEDING AND
CURRENT ROW which i never add .Oddly,if you remove the "case when" statement in
sql1 or remove the "where" statement in sql1 ,the program will work well,
the exception disappear. In the same time, rownumber() 's physical rel came
back to StreamExecRank. Its confusing
example code :
{code:java}
import org.apache.flink.api.java.tuple.Tuple12;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.functions.source.SourceFunction;
import org.apache.flink.table.api.EnvironmentSettings;
import org.apache.flink.table.api.ExplainDetail;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
import org.apache.flink.types.Row;
import org.junit.jupiter.api.Test;
import java.sql.Timestamp;
import static org.apache.flink.table.api.Expressions.$;
public class BugTest {
@Test public void testRowNumber() throws Exception {
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();
EnvironmentSettings
mySetting=EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
mySetting);
env.setParallelism(1);
//source table ,name is wosOutSowingTaskDetail
DataStream<Tuple12<String, Integer, Integer, String, Integer, Integer,
Integer, Integer, Integer, String, String, String>> oriStream =
env.addSource(new CustomSourceRowNumber());
Table testTable = tableEnv.fromDataStream(oriStream, $("biz_bill_no"),
$("task_type"), $("task_mode"), $("parent_task_no"), $("total_stage_num"),
$("current_stage_index"), $("use_pre_task_owner"), $("poi_type"),
$("biz_origin_bill_type"), $("sowing_task_no"), $("dt"),
$("sowing_task_detail_id"));
tableEnv.createTemporaryView("wosOutSowingTaskDetail", testTable);
//sql 0，select xx from ( ROW_NUMBER stament) where rn=1
Table wosOutSowingTaskDetailLatest = tableEnv.sqlQuery( "SELECT
`biz_bill_no`\n"
+ ",task_type\n"
+ ",task_mode\n"
+ ",parent_task_no\n"
+ ",poi_type\n"
+ ",sowing_task_no\n"
+ " FROM (\n"
+ " SELECT *,\n"
+ " ROW_NUMBER() OVER(PARTITION BY sowing_task_detail_id ORDER BY
task_type desc) AS rn\n"
+ " FROM wosOutSowingTaskDetail\n"
+ " ) tmp\n"
+ " WHERE rn = 1");
System.out.println("SQL 0 Plan: ");
System.out.println(wosOutSowingTaskDetailLatest.explain(ExplainDetail.ESTIMATED_COST));
System.out.println(wosOutSowingTaskDetailLatest.explain(ExplainDetail.CHANGELOG_MODE));
tableEnv.createTemporaryView("wosOutSowingTaskDetailLatest",
wosOutSowingTaskDetailLatest);
//sql 1:select from sql0'result table ,field has a CASE WHEN
Table resultTable = tableEnv.sqlQuery("SELECT\n"
+ "biz_bill_no,\n"
+ "CASE WHEN task_type = 21 THEN parent_task_no\n"
+ " ELSE sowing_task_no END AS parent_task_no_cw\n"
+ "FROM wosOutSowingTaskDetailLatest\n"
+ "WHERE task_type = 21\n"
+ "AND task_mode IN (51, 40)\n"
+ "AND poi_type = 2\n");
System.out.println("SQL 1 Plan: ");
System.out.println(resultTable.explain(ExplainDetail.ESTIMATED_COST));
System.out.println(resultTable.explain(ExplainDetail.CHANGELOG_MODE));
DataStream<Tuple2<Boolean, Row>> resultStream =
tableEnv.toRetractStream(resultTable, Row.class);
env.execute();
}
//user define source ,just for test,no use here
static class CustomSourceRowNumber implements SourceFunction<Tuple12<String,
Integer, Integer, String, Integer, Integer, Integer, Integer, Integer, String,
String, String>> {
private boolean isRuning = true;
@Override public void run(SourceContext<Tuple12<String, Integer, Integer,
String, Integer, Integer, Integer, Integer, Integer, String, String, String>>
sourceContext) throws Exception {
while (isRuning) {
sourceContext.collect(Tuple12.of("xxx",21,51,"yyy",1,1,0,2,110,"zzz","aaa","bbb"));
sourceContext.collect(Tuple12.of("xxx",21,40,"yyy",2,2,1,2,110,"zzz","aaa","bbb"));
Thread.sleep(Integer.MAX_VALUE); } } @Override public void cancel() {
isRuning = false;
}
}
}
{code}
System.out.println
{code:java}
SQL 0 Plan:
== Abstract Syntax Tree ==
LogicalProject(biz_bill_no=[$0], task_type=[$1], task_mode=[$2],
parent_task_no=[$3], total_stage_num=[$4], current_stage_index=[$5],
use_pre_task_owner=[$6], poi_type=[$7], biz_origin_bill_type=[$8],
sowing_task_no=[$9])
+- LogicalFilter(condition=[=($12, 1)])
+- LogicalProject(biz_bill_no=[$0], task_type=[$1], task_mode=[$2],
parent_task_no=[$3], total_stage_num=[$4], current_stage_index=[$5],
use_pre_task_owner=[$6], poi_type=[$7], biz_origin_bill_type=[$8],
sowing_task_no=[$9], dt=[$10], sowing_task_detail_id=[$11], rn=[ROW_NUMBER()
OVER (PARTITION BY $10, $11 ORDER BY $1 DESC NULLS LAST)])
+- LogicalTableScan(table=[[default_catalog, default_database,
wosOutSowingTaskDetail]])
== Optimized Logical Plan ==
Calc(select=[biz_bill_no, task_type, task_mode, parent_task_no,
total_stage_num, current_stage_index, use_pre_task_owner, poi_type,
biz_origin_bill_type, sowing_task_no], changelogMode=[I,UA,D])
+- Rank(strategy=[AppendFastStrategy], rankType=[ROW_NUMBER],
rankRange=[rankStart=1, rankEnd=1], partitionBy=[dt, sowing_task_detail_id],
orderBy=[task_type DESC], select=[biz_bill_no, task_type, task_mode,
parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
poi_type, biz_origin_bill_type, sowing_task_no, dt, sowing_task_detail_id],
changelogMode=[I,UA,D])
+- Exchange(distribution=[hash[dt, sowing_task_detail_id]],
changelogMode=[I])
+- DataStreamScan(table=[[default_catalog, default_database,
wosOutSowingTaskDetail]], fields=[biz_bill_no, task_type, task_mode,
parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
poi_type, biz_origin_bill_type, sowing_task_no, dt, sowing_task_detail_id],
changelogMode=[I])
== Physical Execution Plan ==
Stage 1 : Data Source
content : Source: Custom Source
Stage 7 : Operator
content :
SourceConversion(table=[default_catalog.default_database.wosOutSowingTaskDetail],
fields=[biz_bill_no, task_type, task_mode, parent_task_no, total_stage_num,
current_stage_index, use_pre_task_owner, poi_type, biz_origin_bill_type,
sowing_task_no, dt, sowing_task_detail_id])
ship_strategy : FORWARD
Stage 9 : Operator
content : Rank(strategy=[AppendFastStrategy],
rankType=[ROW_NUMBER], rankRange=[rankStart=1, rankEnd=1], partitionBy=[dt,
sowing_task_detail_id], orderBy=[task_type DESC], select=[biz_bill_no,
task_type, task_mode, parent_task_no, total_stage_num, current_stage_index,
use_pre_task_owner, poi_type, biz_origin_bill_type, sowing_task_no, dt,
sowing_task_detail_id])
ship_strategy : HASH
Stage 10 : Operator
content : Calc(select=[biz_bill_no, task_type, task_mode,
parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
poi_type, biz_origin_bill_type, sowing_task_no])
ship_strategy : FORWARD
SQL 1 Plan:
org.apache.flink.table.api.TableException: The window can only be ordered in
ASCENDING mode. {code}
was:
hello,
i have 2 sqls. One sql (sql0) is "select xx from ( ROW_NUMBER stament)
where rn=1" and the other one (sql1) is "s{color:#505f79}elect ${fields}
from result where ${filter_conditions}{color}" . The fields quoted in sql1 has
one "case when" field .The two sql can work well seperately.but if they combine
it results the exception as follow . It happen in the occasion when logical
plan turn into physical plan :
{code:java}
org.apache.flink.table.api.TableException: The window can only be ordered in
ASCENDING mode.
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregate.translateToPlanInternal(StreamExecOverAggregate.scala:98)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregate.translateToPlanInternal(StreamExecOverAggregate.scala:52)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:59)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregateBase.translateToPlan(StreamExecOverAggregateBase.scala:42)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:39)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:59)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalcBase.translateToPlan(StreamExecCalcBase.scala:38)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:66)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:65)
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:65)
at
org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:103)
at
org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:42)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.explainInternal(TableEnvironmentImpl.java:630)
at org.apache.flink.table.api.internal.TableImpl.explain(TableImpl.java:582)
at
com.meituan.grocery.data.flink.test.BugTest.testRowNumber(BugTest.java:69)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
at
org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60){code}
In the stacktrace above , rownumber() 's physical rel which is
StreamExecRank In nomal has became StreamExecOverAggregate . The
StreamExecOverAggregate rel has a window= ROWS BETWEEN UNBOUNDED PRECEDING AND
CURRENT ROW which i never add .Oddly,if you remove the "case when" statement in
sql1 or remove the "where" statement in sql1 ,the program will work well,
the exception disappear. In the same time, rownumber() 's physical rel came
back to StreamExecRank. Its confusing
example code :
{code:java}
import org.apache.flink.api.java.tuple.Tuple12;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.functions.source.SourceFunction;
import org.apache.flink.table.api.EnvironmentSettings;
import org.apache.flink.table.api.ExplainDetail;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
import org.apache.flink.types.Row;
import org.junit.jupiter.api.Test;
import java.sql.Timestamp;
import static org.apache.flink.table.api.Expressions.$;
public class BugTest {
@Test public void testRowNumber() throws Exception {
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();
EnvironmentSettings
mySetting=EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
mySetting);
env.setParallelism(1);
//source table ,name is wosOutSowingTaskDetail
DataStream<Tuple12<String, Integer, Integer, String, Integer, Integer,
Integer, Integer, Integer, String, String, String>> oriStream =
env.addSource(new CustomSourceRowNumber());
Table testTable = tableEnv.fromDataStream(oriStream, $("biz_bill_no"),
$("task_type"), $("task_mode"), $("parent_task_no"), $("total_stage_num"),
$("current_stage_index"), $("use_pre_task_owner"), $("poi_type"),
$("biz_origin_bill_type"), $("sowing_task_no"), $("dt"),
$("sowing_task_detail_id"));
tableEnv.createTemporaryView("wosOutSowingTaskDetail", testTable);
//sql 0，select xx from ( ROW_NUMBER stament) where rn=1
Table wosOutSowingTaskDetailLatest = tableEnv.sqlQuery( "SELECT
`biz_bill_no`\n"
+ ",task_type\n"
+ ",task_mode\n"
+ ",parent_task_no\n"
+ ",poi_type\n"
+ ",sowing_task_no\n"
+ " FROM (\n"
+ " SELECT *,\n"
+ " ROW_NUMBER() OVER(PARTITION BY sowing_task_detail_id ORDER BY
task_type desc) AS rn\n"
+ " FROM wosOutSowingTaskDetail\n"
+ " ) tmp\n"
+ " WHERE rn = 1");
System.out.println("SQL 0 Plan: ");
System.out.println(wosOutSowingTaskDetailLatest.explain(ExplainDetail.ESTIMATED_COST));
System.out.println(wosOutSowingTaskDetailLatest.explain(ExplainDetail.CHANGELOG_MODE));
tableEnv.createTemporaryView("wosOutSowingTaskDetailLatest",
wosOutSowingTaskDetailLatest);
//sql 1:select from sql0'result table ,field has a CASE WHEN
Table resultTable = tableEnv.sqlQuery("SELECT\n"
+ "biz_bill_no,\n"
+ "CASE WHEN task_type = 21 THEN parent_task_no\n"
+ " ELSE sowing_task_no END AS parent_task_no_cw\n"
+ "FROM wosOutSowingTaskDetailLatest\n"
+ "WHERE task_type = 21\n"
+ "AND task_mode IN (51, 40)\n"
+ "AND poi_type = 2\n");
System.out.println("SQL 1 Plan: ");
System.out.println(resultTable.explain(ExplainDetail.ESTIMATED_COST));
System.out.println(resultTable.explain(ExplainDetail.CHANGELOG_MODE));
DataStream<Tuple2<Boolean, Row>> resultStream =
tableEnv.toRetractStream(resultTable, Row.class);
env.execute();
}
//user define source
static class CustomSourceRowNumber implements SourceFunction<Tuple12<String,
Integer, Integer, String, Integer, Integer, Integer, Integer, Integer, String,
String, String>> {
private boolean isRuning = true;
@Override public void run(SourceContext<Tuple12<String, Integer, Integer,
String, Integer, Integer, Integer, Integer, Integer, String, String, String>>
sourceContext) throws Exception {
while (isRuning) {
sourceContext.collect(Tuple12.of("xxx",21,51,"yyy",1,1,0,2,110,"zzz","aaa","bbb"));
sourceContext.collect(Tuple12.of("xxx",21,40,"yyy",2,2,1,2,110,"zzz","aaa","bbb"));
Thread.sleep(Integer.MAX_VALUE); } } @Override public void cancel() {
isRuning = false;
}
}
}
{code}
System.out.println
{code:java}
SQL 0 Plan:
== Abstract Syntax Tree ==
LogicalProject(biz_bill_no=[$0], task_type=[$1], task_mode=[$2],
parent_task_no=[$3], total_stage_num=[$4], current_stage_index=[$5],
use_pre_task_owner=[$6], poi_type=[$7], biz_origin_bill_type=[$8],
sowing_task_no=[$9])
+- LogicalFilter(condition=[=($12, 1)])
+- LogicalProject(biz_bill_no=[$0], task_type=[$1], task_mode=[$2],
parent_task_no=[$3], total_stage_num=[$4], current_stage_index=[$5],
use_pre_task_owner=[$6], poi_type=[$7], biz_origin_bill_type=[$8],
sowing_task_no=[$9], dt=[$10], sowing_task_detail_id=[$11], rn=[ROW_NUMBER()
OVER (PARTITION BY $10, $11 ORDER BY $1 DESC NULLS LAST)])
+- LogicalTableScan(table=[[default_catalog, default_database,
wosOutSowingTaskDetail]])
== Optimized Logical Plan ==
Calc(select=[biz_bill_no, task_type, task_mode, parent_task_no,
total_stage_num, current_stage_index, use_pre_task_owner, poi_type,
biz_origin_bill_type, sowing_task_no], changelogMode=[I,UA,D])
+- Rank(strategy=[AppendFastStrategy], rankType=[ROW_NUMBER],
rankRange=[rankStart=1, rankEnd=1], partitionBy=[dt, sowing_task_detail_id],
orderBy=[task_type DESC], select=[biz_bill_no, task_type, task_mode,
parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
poi_type, biz_origin_bill_type, sowing_task_no, dt, sowing_task_detail_id],
changelogMode=[I,UA,D])
+- Exchange(distribution=[hash[dt, sowing_task_detail_id]],
changelogMode=[I])
+- DataStreamScan(table=[[default_catalog, default_database,
wosOutSowingTaskDetail]], fields=[biz_bill_no, task_type, task_mode,
parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
poi_type, biz_origin_bill_type, sowing_task_no, dt, sowing_task_detail_id],
changelogMode=[I])
== Physical Execution Plan ==
Stage 1 : Data Source
content : Source: Custom Source
Stage 7 : Operator
content :
SourceConversion(table=[default_catalog.default_database.wosOutSowingTaskDetail],
fields=[biz_bill_no, task_type, task_mode, parent_task_no, total_stage_num,
current_stage_index, use_pre_task_owner, poi_type, biz_origin_bill_type,
sowing_task_no, dt, sowing_task_detail_id])
ship_strategy : FORWARD
Stage 9 : Operator
content : Rank(strategy=[AppendFastStrategy],
rankType=[ROW_NUMBER], rankRange=[rankStart=1, rankEnd=1], partitionBy=[dt,
sowing_task_detail_id], orderBy=[task_type DESC], select=[biz_bill_no,
task_type, task_mode, parent_task_no, total_stage_num, current_stage_index,
use_pre_task_owner, poi_type, biz_origin_bill_type, sowing_task_no, dt,
sowing_task_detail_id])
ship_strategy : HASH
Stage 10 : Operator
content : Calc(select=[biz_bill_no, task_type, task_mode,
parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
poi_type, biz_origin_bill_type, sowing_task_no])
ship_strategy : FORWARD
SQL 1 Plan:
org.apache.flink.table.api.TableException: The window can only be ordered in
ASCENDING mode. {code}
> row_number =1 and Subsequent SQL has "case when" and "where" statement : The
> window can only be ordered in ASCENDING mode
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-26051
> URL: https://issues.apache.org/jira/browse/FLINK-26051
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.12.2
> Reporter: chuncheng wu
> Priority: Major
>
> hello,
> i have 2 sqls. One sql (sql0) is "select xx from ( ROW_NUMBER stament)
> where rn=1" and the other one (sql1) is "s{color:#505f79}elect ${fields}
> from result where ${filter_conditions}{color}" . The fields quoted in sql1
> has one "case when" field .The two sql can work well seperately.but if they
> combine it results the exception as follow . It happen in the occasion when
> logical plan turn into physical plan :
>
> {code:java}
> org.apache.flink.table.api.TableException: The window can only be ordered in
> ASCENDING mode.
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregate.translateToPlanInternal(StreamExecOverAggregate.scala:98)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregate.translateToPlanInternal(StreamExecOverAggregate.scala:52)
> at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:59)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecOverAggregateBase.translateToPlan(StreamExecOverAggregateBase.scala:42)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:54)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:39)
> at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:59)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalcBase.translateToPlan(StreamExecCalcBase.scala:38)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:66)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:65)
> 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:65)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:103)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:42)
> at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.explainInternal(TableEnvironmentImpl.java:630)
> at
> org.apache.flink.table.api.internal.TableImpl.explain(TableImpl.java:582)
> at
> com.meituan.grocery.data.flink.test.BugTest.testRowNumber(BugTest.java:69)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:568)
> at
> org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
> at
> org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60){code}
> In the stacktrace above , rownumber() 's physical rel which is
> StreamExecRank In nomal has became StreamExecOverAggregate . The
> StreamExecOverAggregate rel has a window= ROWS BETWEEN UNBOUNDED PRECEDING
> AND CURRENT ROW which i never add .Oddly,if you remove the "case when"
> statement in sql1 or remove the "where" statement in sql1 ,the program
> will work well, the exception disappear. In the same time, rownumber() 's
> physical rel came back to StreamExecRank. Its confusing
>
> example code :
> {code:java}
> import org.apache.flink.api.java.tuple.Tuple12;
> import org.apache.flink.api.java.tuple.Tuple2;
> import org.apache.flink.streaming.api.datastream.DataStream;
> import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
> import org.apache.flink.streaming.api.functions.source.SourceFunction;
> import org.apache.flink.table.api.EnvironmentSettings;
> import org.apache.flink.table.api.ExplainDetail;
> import org.apache.flink.table.api.Table;
> import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
> import org.apache.flink.types.Row;
> import org.junit.jupiter.api.Test;
> import java.sql.Timestamp;
> import static org.apache.flink.table.api.Expressions.$;
> public class BugTest {
> @Test public void testRowNumber() throws Exception {
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> EnvironmentSettings
> mySetting=EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> mySetting);
> env.setParallelism(1);
> //source table ,name is wosOutSowingTaskDetail
> DataStream<Tuple12<String, Integer, Integer, String, Integer, Integer,
> Integer, Integer, Integer, String, String, String>> oriStream =
> env.addSource(new CustomSourceRowNumber());
> Table testTable = tableEnv.fromDataStream(oriStream, $("biz_bill_no"),
> $("task_type"), $("task_mode"), $("parent_task_no"), $("total_stage_num"),
> $("current_stage_index"), $("use_pre_task_owner"), $("poi_type"),
> $("biz_origin_bill_type"), $("sowing_task_no"), $("dt"),
> $("sowing_task_detail_id"));
> tableEnv.createTemporaryView("wosOutSowingTaskDetail", testTable);
> //sql 0，select xx from ( ROW_NUMBER stament) where rn=1
> Table wosOutSowingTaskDetailLatest = tableEnv.sqlQuery( "SELECT
> `biz_bill_no`\n"
> + ",task_type\n"
> + ",task_mode\n"
> + ",parent_task_no\n"
> + ",poi_type\n"
> + ",sowing_task_no\n"
> + " FROM (\n"
> + " SELECT *,\n"
> + " ROW_NUMBER() OVER(PARTITION BY sowing_task_detail_id ORDER BY
> task_type desc) AS rn\n"
> + " FROM wosOutSowingTaskDetail\n"
> + " ) tmp\n"
> + " WHERE rn = 1");
> System.out.println("SQL 0 Plan: ");
>
> System.out.println(wosOutSowingTaskDetailLatest.explain(ExplainDetail.ESTIMATED_COST));
>
>
> System.out.println(wosOutSowingTaskDetailLatest.explain(ExplainDetail.CHANGELOG_MODE));
>
> tableEnv.createTemporaryView("wosOutSowingTaskDetailLatest",
> wosOutSowingTaskDetailLatest);
>
> //sql 1:select from sql0'result table ,field has a CASE WHEN
> Table resultTable = tableEnv.sqlQuery("SELECT\n"
> + "biz_bill_no,\n"
> + "CASE WHEN task_type = 21 THEN parent_task_no\n"
> + " ELSE sowing_task_no END AS parent_task_no_cw\n"
> + "FROM wosOutSowingTaskDetailLatest\n"
> + "WHERE task_type = 21\n"
> + "AND task_mode IN (51, 40)\n"
> + "AND poi_type = 2\n");
> System.out.println("SQL 1 Plan: ");
> System.out.println(resultTable.explain(ExplainDetail.ESTIMATED_COST));
> System.out.println(resultTable.explain(ExplainDetail.CHANGELOG_MODE));
> DataStream<Tuple2<Boolean, Row>> resultStream =
> tableEnv.toRetractStream(resultTable, Row.class);
> env.execute();
> }
> //user define source ,just for test,no use here
> static class CustomSourceRowNumber implements SourceFunction<Tuple12<String,
> Integer, Integer, String, Integer, Integer, Integer, Integer, Integer,
> String, String, String>> {
> private boolean isRuning = true;
> @Override public void run(SourceContext<Tuple12<String, Integer, Integer,
> String, Integer, Integer, Integer, Integer, Integer, String, String, String>>
> sourceContext) throws Exception {
> while (isRuning) {
>
> sourceContext.collect(Tuple12.of("xxx",21,51,"yyy",1,1,0,2,110,"zzz","aaa","bbb"));
>
>
> sourceContext.collect(Tuple12.of("xxx",21,40,"yyy",2,2,1,2,110,"zzz","aaa","bbb"));
>
> Thread.sleep(Integer.MAX_VALUE); } } @Override public void cancel()
> { isRuning = false;
> }
> }
> }
> {code}
> System.out.println
> {code:java}
> SQL 0 Plan:
> == Abstract Syntax Tree ==
> LogicalProject(biz_bill_no=[$0], task_type=[$1], task_mode=[$2],
> parent_task_no=[$3], total_stage_num=[$4], current_stage_index=[$5],
> use_pre_task_owner=[$6], poi_type=[$7], biz_origin_bill_type=[$8],
> sowing_task_no=[$9])
> +- LogicalFilter(condition=[=($12, 1)])
> +- LogicalProject(biz_bill_no=[$0], task_type=[$1], task_mode=[$2],
> parent_task_no=[$3], total_stage_num=[$4], current_stage_index=[$5],
> use_pre_task_owner=[$6], poi_type=[$7], biz_origin_bill_type=[$8],
> sowing_task_no=[$9], dt=[$10], sowing_task_detail_id=[$11], rn=[ROW_NUMBER()
> OVER (PARTITION BY $10, $11 ORDER BY $1 DESC NULLS LAST)])
> +- LogicalTableScan(table=[[default_catalog, default_database,
> wosOutSowingTaskDetail]])
> == Optimized Logical Plan ==
> Calc(select=[biz_bill_no, task_type, task_mode, parent_task_no,
> total_stage_num, current_stage_index, use_pre_task_owner, poi_type,
> biz_origin_bill_type, sowing_task_no], changelogMode=[I,UA,D])
> +- Rank(strategy=[AppendFastStrategy], rankType=[ROW_NUMBER],
> rankRange=[rankStart=1, rankEnd=1], partitionBy=[dt, sowing_task_detail_id],
> orderBy=[task_type DESC], select=[biz_bill_no, task_type, task_mode,
> parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
> poi_type, biz_origin_bill_type, sowing_task_no, dt, sowing_task_detail_id],
> changelogMode=[I,UA,D])
> +- Exchange(distribution=[hash[dt, sowing_task_detail_id]],
> changelogMode=[I])
> +- DataStreamScan(table=[[default_catalog, default_database,
> wosOutSowingTaskDetail]], fields=[biz_bill_no, task_type, task_mode,
> parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
> poi_type, biz_origin_bill_type, sowing_task_no, dt, sowing_task_detail_id],
> changelogMode=[I])
> == Physical Execution Plan ==
> Stage 1 : Data Source
> content : Source: Custom Source
> Stage 7 : Operator
> content :
> SourceConversion(table=[default_catalog.default_database.wosOutSowingTaskDetail],
> fields=[biz_bill_no, task_type, task_mode, parent_task_no, total_stage_num,
> current_stage_index, use_pre_task_owner, poi_type, biz_origin_bill_type,
> sowing_task_no, dt, sowing_task_detail_id])
> ship_strategy : FORWARD
> Stage 9 : Operator
> content : Rank(strategy=[AppendFastStrategy],
> rankType=[ROW_NUMBER], rankRange=[rankStart=1, rankEnd=1], partitionBy=[dt,
> sowing_task_detail_id], orderBy=[task_type DESC], select=[biz_bill_no,
> task_type, task_mode, parent_task_no, total_stage_num, current_stage_index,
> use_pre_task_owner, poi_type, biz_origin_bill_type, sowing_task_no, dt,
> sowing_task_detail_id])
> ship_strategy : HASH
> Stage 10 : Operator
> content : Calc(select=[biz_bill_no, task_type, task_mode,
> parent_task_no, total_stage_num, current_stage_index, use_pre_task_owner,
> poi_type, biz_origin_bill_type, sowing_task_no])
> ship_strategy : FORWARD
> SQL 1 Plan:
> org.apache.flink.table.api.TableException: The window can only be ordered in
> ASCENDING mode. {code}
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