fix(tsql): generate correct DateFromParts naming (#4563)

geooo109 · web-flow · commit 2495508fa7b3 · 2025-01-06T15:47:29.000-08:00
diff --git a/sqlglot/dialects/tsql.py b/sqlglot/dialects/tsql.py
@@ -948,6 +948,7 @@ class Generator(generator.Generator):
             exp.TsOrDsAdd: date_delta_sql("DATEADD", cast=True),
             exp.TsOrDsDiff: date_delta_sql("DATEDIFF"),
             exp.TimestampTrunc: lambda self, e: self.func("DATETRUNC", e.unit, e.this),
+            exp.DateFromParts: rename_func("DATEFROMPARTS"),
         }
 
         TRANSFORMS.pop(exp.ReturnsProperty)
diff --git a/tests/dialects/test_tsql.py b/tests/dialects/test_tsql.py
@@ -1220,7 +1220,10 @@ def test_json(self):
     def test_datefromparts(self):
         self.validate_all(
             "SELECT DATEFROMPARTS('2020', 10, 01)",
-            write={"spark": "SELECT MAKE_DATE('2020', 10, 01)"},
+            write={
+                "spark": "SELECT MAKE_DATE('2020', 10, 01)",
+                "tsql": "SELECT DATEFROMPARTS('2020', 10, 01)",
+            },
         )
 
     def test_datename(self):

Original file line number	Diff line number	Diff line change
`@@ -948,6 +948,7 @@ class Generator(generator.Generator):`
`948`	`948`	`exp.TsOrDsAdd: date_delta_sql("DATEADD", cast=True),`
`949`	`949`	`exp.TsOrDsDiff: date_delta_sql("DATEDIFF"),`
`950`	`950`	`exp.TimestampTrunc: lambda self, e: self.func("DATETRUNC", e.unit, e.this),`
	`951`	`+ exp.DateFromParts: rename_func("DATEFROMPARTS"),`
`951`	`952`	`}`
`952`	`953`
`953`	`954`	`TRANSFORMS.pop(exp.ReturnsProperty)`