Fixup

Author: georgesittas

sqlglot/dialects/hive.py

@@ -24,7 +24,6 @@ class Hive(Dialect):
     ARRAY_AGG_INCLUDES_NULLS = None
     REGEXP_EXTRACT_DEFAULT_GROUP = 1
     ALTER_TABLE_SUPPORTS_CASCADE = True
-    UUID_IS_STRING_TYPE = False
 
     # https://spark.apache.org/docs/latest/sql-ref-identifier.html#description
     NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE

sqlglot/parser.py

@@ -421,6 +421,11 @@ class Parser:
         "UNNEST": lambda args: exp.Unnest(expressions=ensure_list(seq_get(args, 0))),
         "UPPER": build_upper,
         "UUID": lambda args, dialect: exp.Uuid(is_string=dialect.UUID_IS_STRING_TYPE or None),
+        "UUID_STRING": lambda args, dialect: exp.Uuid(
+            this=seq_get(args, 0),
+            name=seq_get(args, 1),
+            is_string=dialect.UUID_IS_STRING_TYPE or None,
+        ),
         "VAR_MAP": build_var_map,
     }
 

sqlglot/parsers/snowflake.py

@@ -715,7 +715,6 @@ class SnowflakeParser(parser.Parser):
         ),
         "SYSTIMESTAMP": exp.CurrentTimestamp.from_arg_list,
         "UNICODE": lambda args: exp.Unicode(this=seq_get(args, 0), empty_is_zero=True),
-        "UUID_STRING": lambda args: exp.Uuid(this=seq_get(args, 0), name=seq_get(args, 1)),
         "WEEKISO": exp.WeekOfYear.from_arg_list,
         "WEEKOFYEAR": exp.Week.from_arg_list,
     }

tests/dialects/test_dialect.py

@@ -3881,7 +3881,6 @@ def test_uuid(self):
                 "trino": "UUID()",
                 "mysql": "UUID()",
                 "postgres": "GEN_RANDOM_UUID()",
-                "snowflake": "UUID_STRING()",
                 "tsql": "NEWID()",
             },
             write={

tests/dialects/test_snowflake.py

@@ -2217,13 +2217,13 @@ def test_snowflake(self):
                 "snowflake": "UUID_STRING('fe971b24-9572-4005-b22f-351e9c09274d', 'foo')",
             },
             write={
-                "hive": "UUID()",
-                "spark2": "UUID()",
-                "spark": "UUID()",
-                "databricks": "UUID()",
+                "hive": "CAST(UUID() AS STRING)",
+                "spark2": "CAST(UUID() AS STRING)",
+                "spark": "CAST(UUID() AS STRING)",
+                "databricks": "CAST(UUID() AS STRING)",
                 "duckdb": "(SELECT LOWER(SUBSTRING(h, 1, 8) || '-' || SUBSTRING(h, 9, 4) || '-' || '5' || SUBSTRING(h, 14, 3) || '-' || FORMAT('{:02x}', CAST('0x' || SUBSTRING(h, 17, 2) AS INT) & 63 | 128) || SUBSTRING(h, 19, 2) || '-' || SUBSTRING(h, 21, 12)) FROM (SELECT SUBSTRING(SHA1(UNHEX(REPLACE('fe971b24-9572-4005-b22f-351e9c09274d', '-', '')) || ENCODE('foo')), 1, 32) AS h))",
-                "presto": "UUID()",
-                "trino": "UUID()",
+                "presto": "CAST(UUID() AS VARCHAR)",
+                "trino": "CAST(UUID() AS VARCHAR)",
                 "postgres": "GEN_RANDOM_UUID()",
                 "bigquery": "GENERATE_UUID()",
             },