dosubot[bot] commented on issue #2780:
URL:
https://github.com/apache/incubator-hugegraph/issues/2780#issuecomment-2921165718
<!-- Answer -->
HugeGraph 的 properties 支持多种比较操作符，包括你提到的 `=`, `>`, `<`, `!=`, `in`, 以及
`contains` 等。这些操作符在 HugeGraph 的查询系统中有明确实现，例如：
- `=`（等于）：如 `"city": "Beijing"`
- `>`（大于）：如 `"age": {">": 20}`
- `<`（小于）：如 `"age": {"<": 30}`
- `!=`（不等于）：如 `"name": {"!=": "Alice"}`
- `in`（在列表中）：如 `"age": {"in": [20, 30]}`
- `contains`（集合属性包含）：如 `"tags": {"contains": "VIP"}`
这些操作符在 HugeGraph 的底层通过 `Condition.java` 中的 `RelationType` 枚举实现，支持 EQ (`==`),
GT (`>`), GTE (`>=`), LT (`<`), LTE (`<=`), NEQ (`!=`), IN (`in`), NOT_IN
(`notin`), CONTAINS (`contains`), TEXT_CONTAINS (`textcontains`)
等多种操作符，适用于属性过滤和复杂查询需求。具体实现可参考 [Condition.java
源码](https://github.com/apache/incubator-hugegraph/blob/337dc86567834acd717a2240a79fef2815d4bb6f/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/backend/query/Condition.java)。
对于集合属性（如 SET 或 LIST），可以使用 `CONTAINS` 或 `TEXT_CONTAINS` 操作符进行查询。例如，Gremlin
查询中可以这样写：
```groovy
g.V().hasLabel("org").has("alias", CONTAINS, "广州软件")
```
需要注意，使用 `CONTAINS` 或 `TEXT_CONTAINS` 时，相关属性需建立 Search
Index，否则无法生效。详细用法和注意事项可参考 [相关 issue
讨论](https://github.com/apache/incubator-hugegraph/issues/2753)。
此外，HugeGraph
支持二级索引、范围索引、分片索引和全文索引，分别对应不同类型的属性过滤和检索场景，进一步提升查询灵活性和性能。更多索引类型说明见
[这里](https://github.com/apache/incubator-hugegraph/discussions/2739)。
如需具体语法或更多示例，可补充说明你的实际查询场景。
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