Alias sql method to query (#219)

* Alias sql method to query

* Fix py code style

chdb/__init__.py

@@ -9,7 +9,7 @@ class ChdbError(Exception):
 _arrow_format = set({"dataframe", "arrowtable"})
 _process_result_format_funs = {
     "dataframe": lambda x: to_df(x),
-    "arrowtable": lambda x: to_arrowTable(x)
+    "arrowtable": lambda x: to_arrowTable(x),
 }
 
 # If any UDF is defined, the path of the UDF will be set to this variable
@@ -18,7 +18,7 @@ class ChdbError(Exception):
 # UDF script path will be f"{g_udf_path}/{func_name}.py"
 g_udf_path = ""
 
-chdb_version = ('0', '6', '0')
+chdb_version = ("0", "6", "0")
 if sys.version_info[:2] >= (3, 7):
     # get the path of the current file
     current_path = os.path.dirname(os.path.abspath(__file__))
@@ -79,5 +79,15 @@ def query(sql, output_format="CSV", path="", udf_path=""):
     return result_func(res)
 
 
-__all__ = ["ChdbError", "query", "chdb_version",
-           "engine_version", "to_df", "to_arrowTable"]
+# alias for query
+sql = query
+
+__all__ = [
+    "ChdbError",
+    "query",
+    "sql",
+    "chdb_version",
+    "engine_version",
+    "to_df",
+    "to_arrowTable",
+]

chdb/dataframe/query.py

@@ -134,6 +134,9 @@ def query(self, sql: str, **kwargs) -> "Table":
         else:
             raise ValueError("Table object is not initialized correctly")
 
+    # alias sql = query
+    sql = query
+
     def show(self):
         print(self.to_pandas())
 

chdb/session/state.py

@@ -45,3 +45,6 @@ def query(self, sql, fmt="CSV"):
         Execute a query.
         """
         return query(sql, fmt, path=self._path)
+
+    # alias sql = query
+    sql = query

tests/test_udf.py

@@ -3,7 +3,7 @@
 import unittest
 from chdb.udf import chdb_udf
 from chdb.session import Session
-from chdb import query
+from chdb import query, sql
 
 
 @chdb_udf()
@@ -30,7 +30,8 @@ def test_define_in_function(self):
         def sum_udf2(lhs, rhs):
             return int(lhs) + int(rhs)
 
-        ret = query("select sum_udf2(11, 22)", "Debug")
+        # sql is a alias for query
+        ret = sql("select sum_udf2(11, 22)", "Debug")
         self.assertEqual(str(ret), '"33"\n')
 
 
@@ -51,7 +52,8 @@ def sum_udf2(lhs, rhs):
             return int(lhs) + int(rhs)
 
         with Session() as session:
-            ret = session.query("select sum_udf2(11, 22)", "Debug")
+            # sql is a alias for query
+            ret = session.sql("select sum_udf2(11, 22)", "Debug")
             self.assertEqual(str(ret), '"33"\n')
 
 if __name__ == "__main__":