feat(tsql)!: Annotate CURRENT_TIMEZONE() for TSQL

AbhishekASLK · AbhishekASLK · commit 8b9d769ee430 · 2026-01-28T07:49:13.000+05:30
diff --git a/sqlglot/typing/tsql.py b/sqlglot/typing/tsql.py
@@ -18,5 +18,6 @@
             exp.Tan,
         }
     },
+    exp.CurrentTimezone: {"returns": exp.DataType.Type.VARCHAR},
     exp.Radians: {"annotator": lambda self, e: self._annotate_by_args(e, "this")},
 }
diff --git a/tests/fixtures/optimizer/annotate_functions.sql b/tests/fixtures/optimizer/annotate_functions.sql
@@ -5540,6 +5540,10 @@ FLOAT;
 ATAN(tbl.float_col);
 FLOAT;
 
+# dialect: tsql
+CURRENT_TIMEZONE();
+VARCHAR;
+
 --------------------------------------
 -- MySQL
 --------------------------------------

Original file line number	Diff line number	Diff line change
`@@ -18,5 +18,6 @@`
`18`	`18`	`exp.Tan,`
`19`	`19`	`}`
`20`	`20`	`},`
	`21`	`+ exp.CurrentTimezone: {"returns": exp.DataType.Type.VARCHAR},`
`21`	`22`	`exp.Radians: {"annotator": lambda self, e: self._annotate_by_args(e, "this")},`
`22`	`23`	`}`