diqiu50 commented on code in PR #11211:
URL: https://github.com/apache/gravitino/pull/11211#discussion_r3308956968
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docs/spark-connector/spark-connector.md:
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@@ -104,3 +104,8 @@ Gravitino spark connector support the following datatype
mapping between Spark a
| `ArrayType` | `array` | 0.5.0
|
| `MapType` | `map` | 0.5.0
|
| `StructType` | `struct` | 0.5.0
|
+
+:::note
+For Gravitino `UUID` type, Spark connector represents it as `StringType`
because Spark has no native UUID type.
+This behavior is consistent with Spark built-in PostgreSQL JDBC mapping
(`uuid` -> `StringType`).
+:::
Review Comment:
What is the behavior when writing to a PostgreSQL table with a UUID field
using Spark?
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