morrySnow commented on code in PR #29227:
URL: https://github.com/apache/doris/pull/29227#discussion_r1437598424
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/mapping/RelationMapping.java:
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@@ -59,54 +61,84 @@ public static RelationMapping
of(ImmutableBiMap<MappedRelation, MappedRelation>
*/
public static List<RelationMapping> generate(List<CatalogRelation>
sources, List<CatalogRelation> targets) {
// Construct tmp map, key is the table qualifier, value is the
corresponding catalog relations
- LinkedListMultimap<Long, MappedRelation> sourceTableRelationIdMap =
LinkedListMultimap.create();
+ HashMultimap<Long, MappedRelation> sourceTableRelationIdMap =
HashMultimap.create();
for (CatalogRelation relation : sources) {
sourceTableRelationIdMap.put(getTableQualifier(relation.getTable()),
MappedRelation.of(relation.getRelationId(), relation));
}
- LinkedListMultimap<Long, MappedRelation> targetTableRelationIdMap =
LinkedListMultimap.create();
+ HashMultimap<Long, MappedRelation> targetTableRelationIdMap =
HashMultimap.create();
for (CatalogRelation relation : targets) {
targetTableRelationIdMap.put(getTableQualifier(relation.getTable()),
MappedRelation.of(relation.getRelationId(), relation));
}
Set<Long> sourceTableKeySet = sourceTableRelationIdMap.keySet();
- List<List<Pair<MappedRelation, MappedRelation>>> mappedRelations = new
ArrayList<>();
+ List<List<RelationMapping>> mappedRelations = new ArrayList<>();
Review Comment:
i think we should do it right now
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