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[nereids] fix join fd computing bug #28849

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merged 2 commits into from
Dec 23, 2023
Merged

[nereids] fix join fd computing bug #28849

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5b85286
[nereids] fix join fd computing bug
Dec 22, 2023
379185e
[nereids] fix join fd computing bug
Dec 22, 2023
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4 changes: 2 additions & 2 deletions fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/logical/LogicalJoin.java
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Original file line number Diff line number Diff line change
Expand Up @@ -423,8 +423,8 @@ public FunctionalDependencies computeFuncDeps(Supplier<List<Slot>> outputSupplie
// TODO: consider Null-safe hash condition when left and rigth is not nullable
boolean isLeftUnique = left().getLogicalProperties()
.getFunctionalDependencies().isUnique(keys.first);
boolean isRightUnique = left().getLogicalProperties()
.getFunctionalDependencies().isUnique(keys.first);
boolean isRightUnique = right().getLogicalProperties()
.getFunctionalDependencies().isUnique(keys.second);
Builder fdBuilder = new Builder();
if (joinType.isInnerJoin()) {
// inner join propagate uniforms slots
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6 changes: 4 additions & 2 deletions fe/fe-core/src/test/java/org/apache/doris/nereids/rules/rewrite/EliminateJoinByFkTest.java
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Expand Up @@ -107,7 +107,8 @@ void testNullWithPredicate() throws Exception {

@Test
void testMultiJoin() throws Exception {
addConstraint("Alter table foreign_null add constraint uk unique (id3)\n");
addConstraint("Alter table foreign_null add constraint uk_id3 unique (id3)\n");
addConstraint("Alter table foreign_not_null add constraint uk_id2 unique (id2)\n");
String sql = "select id1 from "
+ "foreign_null inner join foreign_not_null on id2 = id3\n"
+ "inner join pri on id1 = id3";
Expand All @@ -116,6 +117,7 @@ void testMultiJoin() throws Exception {
.rewrite()
.nonMatch(logicalOlapScan().when(scan -> scan.getTable().getName().equals("pri")))
.printlnTree();
dropConstraint("Alter table foreign_null drop constraint uk\n");
dropConstraint("Alter table foreign_null drop constraint uk_id3\n");
dropConstraint("Alter table foreign_not_null drop constraint uk_id2");
}
}
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