morrySnow commented on code in PR #13216:
URL: https://github.com/apache/doris/pull/13216#discussion_r990880286
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/logical/LogicalJoin.java:
##########
@@ -45,8 +45,10 @@
public class LogicalJoin<LEFT_CHILD_TYPE extends Plan, RIGHT_CHILD_TYPE
extends Plan>
extends LogicalBinary<LEFT_CHILD_TYPE, RIGHT_CHILD_TYPE> implements
Join {
+ public static final List<Expression> EMPTY_LIST = ImmutableList.of();
Review Comment:
```suggestion
public static final List<Expression> EMPTY_CONDITIONS =
ImmutableList.of();
```
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/logical/MultiJoin.java:
##########
@@ -133,8 +133,8 @@ private Plan reorderJoinsAccordingToConditions(List<Plan>
joinInputs, List<Expre
conjuncts);
List<Expression> joinConditions = pair.first;
List<Expression> nonJoinConditions = pair.second;
- LogicalJoin join = new LogicalJoin<>(JoinType.INNER_JOIN, new
ArrayList<>(),
- ExpressionUtils.optionalAnd(joinConditions),
+ LogicalJoin join = new LogicalJoin<>(JoinType.INNER_JOIN,
LogicalJoin.EMPTY_LIST,
+ joinConditions,
left, right);
Review Comment:
```suggestion
joinConditions, left, right);
```
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/logical/LogicalJoin.java:
##########
@@ -45,8 +45,10 @@
public class LogicalJoin<LEFT_CHILD_TYPE extends Plan, RIGHT_CHILD_TYPE
extends Plan>
extends LogicalBinary<LEFT_CHILD_TYPE, RIGHT_CHILD_TYPE> implements
Join {
+ public static final List<Expression> EMPTY_LIST = ImmutableList.of();
Review Comment:
btw, we could move it to expression utils since it is general enough
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/logical/LogicalJoin.java:
##########
@@ -58,28 +60,39 @@
* @param joinType logical type for join
*/
public LogicalJoin(JoinType joinType, LEFT_CHILD_TYPE leftChild,
RIGHT_CHILD_TYPE rightChild) {
- this(joinType, ImmutableList.of(),
- Optional.empty(), Optional.empty(),
+ this(joinType, ImmutableList.of(), EMPTY_LIST, Optional.empty(),
Review Comment:
```suggestion
this(joinType, EMPTY_CONDITIONS, EMPTY_CONDITIONS, Optional.empty(),
```
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