diff --git a/sqllineage/__init__.py b/sqllineage/__init__.py
index f7d35854..bef62ffe 100644
--- a/sqllineage/__init__.py
+++ b/sqllineage/__init__.py
@@ -2,7 +2,7 @@
 
 
 NAME = "openmetadata-sqllineage"
-VERSION = "1.0.4"
+VERSION = "1.1.0.0"
 DEFAULT_LOGGING = {
     "version": 1,
     "disable_existing_loggers": False,
diff --git a/sqllineage/core/parser/sqlfluff/extractors/dml_insert_extractor.py b/sqllineage/core/parser/sqlfluff/extractors/dml_insert_extractor.py
index 4e7700b9..7ca9239a 100644
--- a/sqllineage/core/parser/sqlfluff/extractors/dml_insert_extractor.py
+++ b/sqllineage/core/parser/sqlfluff/extractors/dml_insert_extractor.py
@@ -22,6 +22,7 @@ class DmlInsertExtractor(LineageHolderExtractor):
     SUPPORTED_STMT_TYPES = [
         "insert_statement",
         "create_table_statement",
+        "create_table_as_statement",
         "create_view_statement",
         "update_statement",
         "copy_statement",
diff --git a/sqllineage/core/parser/sqlfluff/models.py b/sqllineage/core/parser/sqlfluff/models.py
index 4d353cfb..eaaaf063 100644
--- a/sqllineage/core/parser/sqlfluff/models.py
+++ b/sqllineage/core/parser/sqlfluff/models.py
@@ -185,7 +185,9 @@ def _get_column_from_subquery(
             ).get_column_lineage(exclude_subquery=False)
         ]
         source_columns = [
-            ColumnQualifierTuple(src_col.raw_name, src_col.parent.raw_name)
+            ColumnQualifierTuple(
+                src_col.raw_name, src_col.parent.raw_name if src_col.parent else None
+            )
             for src_col in src_cols
         ]
         return source_columns
diff --git a/sqllineage/core/parser/sqlparse/models.py b/sqllineage/core/parser/sqlparse/models.py
index 7a78dbc3..6499773a 100644
--- a/sqllineage/core/parser/sqlparse/models.py
+++ b/sqllineage/core/parser/sqlparse/models.py
@@ -116,7 +116,10 @@ def _extract_source_columns(token: Token) -> List[ColumnQualifierTuple]:
                     )
                 ]
                 source_columns = [
-                    ColumnQualifierTuple(src_col.raw_name, src_col.parent.raw_name)
+                    ColumnQualifierTuple(
+                        src_col.raw_name,
+                        src_col.parent.raw_name if src_col.parent else None,
+                    )
                     for src_col in src_cols
                 ]
             else: