From 5e121459a969cb0c3c8aab174d0191d5d21a5773 Mon Sep 17 00:00:00 2001
From: George Sittas <giwrgos.sittas@gmail.com>
Date: Mon, 9 Sep 2024 18:01:36 +0300
Subject: [PATCH] Feat(bigquery): transpile UUID type to STRING

---
 sqlglot/dialects/bigquery.py  | 3 ++-
 tests/dialects/test_duckdb.py | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/sqlglot/dialects/bigquery.py b/sqlglot/dialects/bigquery.py
index 4c6747d161..6c76635c8a 100644
--- a/sqlglot/dialects/bigquery.py
+++ b/sqlglot/dialects/bigquery.py
@@ -753,8 +753,9 @@ class Generator(generator.Generator):
             exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
             exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
             exp.DataType.Type.TINYINT: "INT64",
-            exp.DataType.Type.VARBINARY: "BYTES",
             exp.DataType.Type.ROWVERSION: "BYTES",
+            exp.DataType.Type.UUID: "STRING",
+            exp.DataType.Type.VARBINARY: "BYTES",
             exp.DataType.Type.VARCHAR: "STRING",
             exp.DataType.Type.VARIANT: "ANY TYPE",
         }
diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py
index 18a030c6bd..98d1604bde 100644
--- a/tests/dialects/test_duckdb.py
+++ b/tests/dialects/test_duckdb.py
@@ -18,6 +18,13 @@ def test_duckdb(self):
             "WITH _data AS (SELECT [STRUCT(1 AS a, 2 AS b), STRUCT(2 AS a, 3 AS b)] AS col) SELECT col.b FROM _data, UNNEST(_data.col) AS col WHERE col.a = 1",
         )
 
+        self.validate_all(
+            "CAST(x AS UUID)",
+            write={
+                "bigquery": "CAST(x AS STRING)",
+                "duckdb": "CAST(x AS UUID)",
+            },
+        )
         self.validate_all(
             """SELECT CASE WHEN JSON_VALID('{"x: 1}') THEN '{"x: 1}' ELSE NULL END""",
             read={