Fix!(spark): create temporary table needs provider (#2322)

* fix(spark) add tests for temp tables

* fix!(spark) Create Temporary Table needs provider

sqlglot/dialects/spark.py

@@ -96,3 +96,17 @@ def datediff_sql(self, expression: exp.DateDiff) -> str:
                 return self.func("DATEDIFF", unit, start, end)
 
             return self.func("DATEDIFF", end, start)
+
+        def create_sql(self, expression: exp.Create) -> str:
+            kind = self.sql(expression, "kind").upper()
+            properties = expression.args.get("properties")
+            temporary = any(
+                isinstance(prop, exp.TemporaryProperty)
+                for prop in (properties.expressions if properties else [])
+            )
+            if kind == "TABLE" and temporary:
+                provider = exp.FileFormatProperty(this=exp.Literal.string("parquet"))
+                expression = expression.copy()
+                expression.args["properties"].append("expressions", provider)
+
+            return super().create_sql(expression)

tests/dialects/test_spark.py

@@ -8,6 +8,7 @@ class TestSpark(Validator):
     dialect = "spark"
 
     def test_ddl(self):
+        self.validate_identity("CREATE TEMPORARY VIEW test AS SELECT 1")
         self.validate_identity("CREATE TABLE foo (col VARCHAR(50))")
         self.validate_identity("CREATE TABLE foo (col STRUCT<struct_col_a: VARCHAR((50))>)")
         self.validate_identity("CREATE TABLE foo (col STRING) CLUSTERED BY (col) INTO 10 BUCKETS")

tests/dialects/test_tsql.py

@@ -564,7 +564,7 @@ def test_ddl(self):
         self.validate_all(
             "CREATE TABLE #mytemp (a INTEGER, b CHAR(2), c TIME(4), d FLOAT(24))",
             write={
-                "spark": "CREATE TEMPORARY TABLE mytemp (a INT, b CHAR(2), c TIMESTAMP, d FLOAT)",
+                "spark": "CREATE TEMPORARY TABLE mytemp (a INT, b CHAR(2), c TIMESTAMP, d FLOAT) USING PARQUET",
                 "tsql": "CREATE TABLE #mytemp (a INTEGER, b CHAR(2), c TIME(4), d FLOAT(24))",
             },
         )