Adding upstream version 16.4.0.upstream/16.4.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/sqlglot/dataframe/sql/normalize.py b/sqlglot/dataframe/sql/normalize.py
index 75feba7..4eec782 100644
--- a/sqlglot/dataframe/sql/normalize.py
+++ b/sqlglot/dataframe/sql/normalize.py
@@ -5,6 +5,7 @@ import typing as t
 from sqlglot import expressions as exp
 from sqlglot.dataframe.sql.column import Column
 from sqlglot.dataframe.sql.util import get_tables_from_expression_with_join
+from sqlglot.dialects import Spark
 from sqlglot.helper import ensure_list
 
 NORMALIZE_INPUT = t.TypeVar("NORMALIZE_INPUT", bound=t.Union[str, exp.Expression, Column])
@@ -19,6 +20,7 @@ def normalize(spark: SparkSession, expression_context: exp.Select, expr: t.List[
     for expression in expressions:
         identifiers = expression.find_all(exp.Identifier)
         for identifier in identifiers:
+            Spark.normalize_identifier(identifier)
             replace_alias_name_with_cte_name(spark, expression_context, identifier)
             replace_branch_and_sequence_ids_with_cte_name(spark, expression_context, identifier)