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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
import org.apache.doris.nereids.rules.RuleType;
import org.apache.doris.nereids.trees.expressions.Slot;
import org.apache.doris.nereids.trees.plans.Plan;
import org.apache.doris.nereids.trees.plans.algebra.Limit;
import org.apache.doris.nereids.trees.plans.logical.LogicalAggregate;
import org.apache.doris.nereids.trees.plans.logical.LogicalJoin;
import org.apache.doris.nereids.trees.plans.logical.LogicalLimit;
Expand All @@ -47,7 +48,7 @@ public List<Rule> buildRules() {
LogicalJoin<Plan, Plan> join = agg.child();

Plan newJoin = pushLimitThroughJoin(limit, join);
if (newJoin == null || join.children().equals(newJoin.children())) {
if (newJoin == null) {
return null;
}
return limit.withChildren(agg.withChildren(newJoin));
Expand All @@ -63,7 +64,7 @@ public List<Rule> buildRules() {
LogicalJoin<Plan, Plan> join = project.child();

Plan newJoin = pushLimitThroughJoin(limit, join);
if (newJoin == null || join.children().equals(newJoin.children())) {
if (newJoin == null) {
return null;
}
return limit.withChildren(agg.withChildren(project.withChildren(newJoin)));
Expand All @@ -77,25 +78,26 @@ private Plan pushLimitThroughJoin(LogicalLimit<?> limit, LogicalJoin<Plan, Plan>
.flatMap(e -> e.getInputSlots().stream()).collect(Collectors.toList());
switch (join.getJoinType()) {
case LEFT_OUTER_JOIN:
if (join.left().getOutputSet().containsAll(groupBySlots)
if (!(join.left() instanceof Limit)
&& join.left().getOutputSet().containsAll(groupBySlots)
&& join.left().getOutputSet().equals(agg.getOutputSet())) {
return join.withChildren(limit.withLimitChild(limit.getLimit() + limit.getOffset(), 0,
agg.withChildren(join.left())), join.right());
}
return null;
case RIGHT_OUTER_JOIN:
if (join.right().getOutputSet().containsAll(groupBySlots)
if (!(join.right() instanceof Limit) && join.right().getOutputSet().containsAll(groupBySlots)
&& join.right().getOutputSet().equals(agg.getOutputSet())) {
return join.withChildren(join.left(), limit.withLimitChild(limit.getLimit() + limit.getOffset(), 0,
agg.withChildren(join.right())));
}
return null;
case CROSS_JOIN:
if (join.left().getOutputSet().containsAll(groupBySlots)
if (!(join.left() instanceof Limit) && join.left().getOutputSet().containsAll(groupBySlots)
&& join.left().getOutputSet().equals(agg.getOutputSet())) {
return join.withChildren(limit.withLimitChild(limit.getLimit() + limit.getOffset(), 0,
agg.withChildren(join.left())), join.right());
} else if (join.right().getOutputSet().containsAll(groupBySlots)
} else if (!(join.right() instanceof Limit) && join.right().getOutputSet().containsAll(groupBySlots)
&& join.right().getOutputSet().equals(agg.getOutputSet())) {
return join.withChildren(join.left(), limit.withLimitChild(limit.getLimit() + limit.getOffset(), 0,
agg.withChildren(join.right())));
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
import org.apache.doris.nereids.rules.RuleType;
import org.apache.doris.nereids.trees.expressions.Slot;
import org.apache.doris.nereids.trees.plans.Plan;
import org.apache.doris.nereids.trees.plans.algebra.TopN;
import org.apache.doris.nereids.trees.plans.logical.LogicalAggregate;
import org.apache.doris.nereids.trees.plans.logical.LogicalJoin;
import org.apache.doris.nereids.trees.plans.logical.LogicalProject;
Expand Down Expand Up @@ -93,6 +94,9 @@ private Plan pushTopNThroughJoin(LogicalTopN<? extends Plan> topN, LogicalJoin<P
.flatMap(e -> e.getInputSlots().stream()).collect(Collectors.toSet());
switch (join.getJoinType()) {
case LEFT_OUTER_JOIN: {
if (join.left() instanceof TopN) {
return null;
}
List<OrderKey> pushedOrderKeys = getPushedOrderKeys(groupBySlots,
join.left().getOutputSet(), topN.getOrderKeys());
if (!pushedOrderKeys.isEmpty()) {
Expand All @@ -104,6 +108,9 @@ private Plan pushTopNThroughJoin(LogicalTopN<? extends Plan> topN, LogicalJoin<P
return null;
}
case RIGHT_OUTER_JOIN: {
if (join.right() instanceof TopN) {
return null;
}
List<OrderKey> pushedOrderKeys = getPushedOrderKeys(groupBySlots,
join.right().getOutputSet(), topN.getOrderKeys());
if (!pushedOrderKeys.isEmpty()) {
Expand All @@ -119,14 +126,14 @@ private Plan pushTopNThroughJoin(LogicalTopN<? extends Plan> topN, LogicalJoin<P
Plan rightChild = join.right();
List<OrderKey> leftPushedOrderKeys = getPushedOrderKeys(groupBySlots,
join.left().getOutputSet(), topN.getOrderKeys());
if (!leftPushedOrderKeys.isEmpty()) {
if (!(join.left() instanceof TopN) && !leftPushedOrderKeys.isEmpty()) {
leftChild = topN.withLimitOrderKeyAndChild(
topN.getLimit() + topN.getOffset(), 0, leftPushedOrderKeys,
PlanUtils.distinct(join.left()));
}
List<OrderKey> rightPushedOrderKeys = getPushedOrderKeys(groupBySlots,
join.right().getOutputSet(), topN.getOrderKeys());
if (!rightPushedOrderKeys.isEmpty()) {
if (!(join.right() instanceof TopN) && !rightPushedOrderKeys.isEmpty()) {
rightChild = topN.withLimitOrderKeyAndChild(
topN.getLimit() + topN.getOffset(), 0, rightPushedOrderKeys,
PlanUtils.distinct(join.right()));
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
import org.apache.doris.nereids.rules.RuleType;
import org.apache.doris.nereids.trees.expressions.Slot;
import org.apache.doris.nereids.trees.plans.Plan;
import org.apache.doris.nereids.trees.plans.algebra.TopN;
import org.apache.doris.nereids.trees.plans.logical.LogicalJoin;
import org.apache.doris.nereids.trees.plans.logical.LogicalProject;
import org.apache.doris.nereids.trees.plans.logical.LogicalTopN;
Expand All @@ -48,7 +49,7 @@ public List<Rule> buildRules() {
.then(topN -> {
LogicalJoin<Plan, Plan> join = topN.child();
Plan newJoin = pushLimitThroughJoin(topN, join);
if (newJoin == null || topN.child().children().equals(newJoin.children())) {
if (newJoin == null) {
return null;
}
return topN.withChildren(newJoin);
Expand All @@ -75,7 +76,7 @@ public List<Rule> buildRules() {
}

Plan newJoin = pushLimitThroughJoin(topN, join);
if (newJoin == null || join.children().equals(newJoin.children())) {
if (newJoin == null) {
return null;
}
return topN.withChildren(project.withChildren(newJoin));
Expand All @@ -88,13 +89,19 @@ private Plan pushLimitThroughJoin(LogicalTopN<? extends Plan> topN, LogicalJoin<
.flatMap(e -> e.getInputSlots().stream()).collect(Collectors.toList());
switch (join.getJoinType()) {
case LEFT_OUTER_JOIN:
if (join.left() instanceof TopN) {
return null;
}
if (join.left().getOutputSet().containsAll(orderbySlots)) {
return join.withChildren(
topN.withLimitChild(topN.getLimit() + topN.getOffset(), 0, join.left()),
join.right());
}
return null;
case RIGHT_OUTER_JOIN:
if (join.right() instanceof TopN) {
return null;
}
if (join.right().getOutputSet().containsAll(orderbySlots)) {
return join.withChildren(
join.left(),
Expand All @@ -104,10 +111,16 @@ private Plan pushLimitThroughJoin(LogicalTopN<? extends Plan> topN, LogicalJoin<
case CROSS_JOIN:

if (join.left().getOutputSet().containsAll(orderbySlots)) {
if (join.left() instanceof TopN) {
return null;
}
return join.withChildren(
topN.withLimitChild(topN.getLimit() + topN.getOffset(), 0, join.left()),
join.right());
} else if (join.right().getOutputSet().containsAll(orderbySlots)) {
if (join.right() instanceof TopN) {
return null;
}
return join.withChildren(
join.left(),
topN.withLimitChild(topN.getLimit() + topN.getOffset(), 0, join.right()));
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,159 @@
package mv.pre_rewrite.limit
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.

suite("query_with_limit") {
String db = context.config.getDbNameByFile(context.file)
sql "use ${db}"
sql "set runtime_filter_mode=OFF";
sql "SET ignore_shape_nodes='PhysicalDistribute,PhysicalProject'"

sql """
drop table if exists orders
"""

sql """
CREATE TABLE IF NOT EXISTS orders (
o_orderkey INTEGER NOT NULL,
o_custkey INTEGER NOT NULL,
o_orderstatus CHAR(1) NOT NULL,
o_totalprice DECIMALV3(15,2) NOT NULL,
o_orderdate DATE NOT NULL,
o_orderpriority CHAR(15) NOT NULL,
o_clerk CHAR(15) NOT NULL,
o_shippriority INTEGER NOT NULL,
O_COMMENT VARCHAR(79) NOT NULL
)
DUPLICATE KEY(o_orderkey, o_custkey)
DISTRIBUTED BY HASH(o_orderkey) BUCKETS 3
PROPERTIES (
"replication_num" = "1"
);
"""

sql """
drop table if exists lineitem
"""

sql """
CREATE TABLE IF NOT EXISTS lineitem (
l_orderkey INTEGER NOT NULL,
l_partkey INTEGER NOT NULL,
l_suppkey INTEGER NOT NULL,
l_linenumber INTEGER NOT NULL,
l_quantity DECIMALV3(15,2) NOT NULL,
l_extendedprice DECIMALV3(15,2) NOT NULL,
l_discount DECIMALV3(15,2) NOT NULL,
l_tax DECIMALV3(15,2) NOT NULL,
l_returnflag CHAR(1) NOT NULL,
l_linestatus CHAR(1) NOT NULL,
l_shipdate DATE NOT NULL,
l_commitdate DATE NOT NULL,
l_receiptdate DATE NOT NULL,
l_shipinstruct CHAR(25) NOT NULL,
l_shipmode CHAR(10) NOT NULL,
l_comment VARCHAR(44) NOT NULL
)
DUPLICATE KEY(l_orderkey, l_partkey, l_suppkey, l_linenumber)
DISTRIBUTED BY HASH(l_orderkey) BUCKETS 3
PROPERTIES (
"replication_num" = "1"
)
"""

sql """
drop table if exists partsupp
"""

sql """
CREATE TABLE IF NOT EXISTS partsupp (
ps_partkey INTEGER NOT NULL,
ps_suppkey INTEGER NOT NULL,
ps_availqty INTEGER NOT NULL,
ps_supplycost DECIMALV3(15,2) NOT NULL,
ps_comment VARCHAR(199) NOT NULL
)
DUPLICATE KEY(ps_partkey, ps_suppkey)
DISTRIBUTED BY HASH(ps_partkey) BUCKETS 3
PROPERTIES (
"replication_num" = "1"
)
"""

sql """ insert into lineitem values
(1, 2, 3, 4, 5.5, 6.5, 7.5, 8.5, 'o', 'k', '2023-12-08', '2023-12-09', '2023-12-10', 'a', 'b', 'yyyyyyyyy'),
(2, 4, 3, 4, 5.5, 6.5, 7.5, 8.5, 'o', 'k', '2023-12-09', '2023-12-09', '2023-12-10', 'a', 'b', 'yyyyyyyyy'),
(3, 2, 4, 4, 5.5, 6.5, 7.5, 8.5, 'o', 'k', '2023-12-10', '2023-12-09', '2023-12-10', 'a', 'b', 'yyyyyyyyy'),
(4, 3, 3, 4, 5.5, 6.5, 7.5, 8.5, 'o', 'k', '2023-12-11', '2023-12-09', '2023-12-10', 'a', 'b', 'yyyyyyyyy'),
(5, 2, 3, 6, 7.5, 8.5, 9.5, 10.5, 'k', 'o', '2023-12-12', '2023-12-12', '2023-12-13', 'c', 'd', 'xxxxxxxxx');
"""

sql """
insert into orders values
(1, 1, 'o', 9.5, '2023-12-08', 'a', 'b', 1, 'yy'),
(1, 1, 'o', 10.5, '2023-12-08', 'a', 'b', 1, 'yy'),
(1, 1, 'o', 10.5, '2023-12-08', 'a', 'b', 1, 'yy'),
(1, 1, 'o', 10.5, '2023-12-08', 'a', 'b', 1, 'yy'),
(2, 1, 'o', 11.5, '2023-12-09', 'a', 'b', 1, 'yy'),
(2, 1, 'o', 11.5, '2023-12-09', 'a', 'b', 1, 'yy'),
(2, 1, 'o', 11.5, '2023-12-09', 'a', 'b', 1, 'yy'),
(3, 1, 'o', 12.5, '2023-12-10', 'a', 'b', 1, 'yy'),
(3, 1, 'o', 12.5, '2023-12-10', 'a', 'b', 1, 'yy'),
(3, 1, 'o', 12.5, '2023-12-10', 'a', 'b', 1, 'yy'),
(3, 1, 'o', 33.5, '2023-12-10', 'a', 'b', 1, 'yy'),
(4, 2, 'o', 43.2, '2023-12-11', 'c','d',2, 'mm'),
(4, 2, 'o', 43.2, '2023-12-11', 'c','d',2, 'mm'),
(4, 2, 'o', 43.2, '2023-12-11', 'c','d',2, 'mm'),
(5, 2, 'o', 56.2, '2023-12-12', 'c','d',2, 'mi'),
(5, 2, 'o', 56.2, '2023-12-12', 'c','d',2, 'mi'),
(5, 2, 'o', 56.2, '2023-12-12', 'c','d',2, 'mi'),
(5, 2, 'o', 1.2, '2023-12-12', 'c','d',2, 'mi');
"""

sql """
insert into partsupp values
(2, 3, 9, 10.01, 'supply1'),
(2, 3, 10, 11.01, 'supply2');
"""

sql """analyze table partsupp with sync"""
sql """analyze table lineitem with sync"""
sql """analyze table orders with sync"""
sql """alter table lineitem modify column l_comment set stats ('row_count'='5');"""
sql """alter table orders modify column O_COMMENT set stats ('row_count'='8');"""
sql """alter table partsupp modify column ps_comment set stats ('row_count'='2');"""

explain {
sql """
select
o_orderdate,
o_shippriority,
o_comment,
l_orderkey,
l_partkey
from
orders left
join lineitem on l_orderkey = o_orderkey
left join partsupp on ps_partkey = l_partkey and l_suppkey = ps_suppkey
order by l_orderkey
limit 2
offset 1;
"""
notContains "group expression count exceeds memo_max_group_expression_size(10000)"
}
}

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