private void buildRelations(String nodeId, List<FieldRelation> relations) {
        relations.add(new FieldRelation(new FieldInfo("id", new LongFormatInfo()),
                new FieldInfo("cf1:id", nodeId, new LongFormatInfo())));
        relations.add(new FieldRelation(new FieldInfo("name", new StringFormatInfo()),
                new FieldInfo("cf1:name", nodeId, new StringFormatInfo())));
        relations.add(new FieldRelation(new FieldInfo("age", new IntFormatInfo()),
                new FieldInfo("cf2:age", nodeId, new IntFormatInfo())));
        relations.add(new FieldRelation(new FieldInfo("ts", new TimestampFormatInfo()),
                new FieldInfo("cf2:ts", nodeId, new TimestampFormatInfo())));
    }
Test for union sql parse {@link UnionNodeRelation}
inlong-sort/sort-core/src/test/java/org/apache/inlong/sort/parser/UnionSqlParseTest.java