refactor(example_data): replace the way the birth_names data is loaded to DB (#18060)

* refactor: replace the way the birth_names data is loaded to DB

* fix failed unit test

* fix failed unit test

* fix failed tests

* fix pass wrong flag of support datetime type

* remove unused fixture

tests/example_data/data_loading/data_definitions/birth_names.py

@@ -0,0 +1,64 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing,
+#  software distributed under the License is distributed on an
+#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#  KIND, either express or implied.  See the License for the
+#  specific language governing permissions and limitations
+#  under the License.
+from sqlalchemy import DateTime, Integer, String
+
+from tests.consts.birth_names import (
+    DS,
+    GENDER,
+    NAME,
+    NUM,
+    NUM_BOYS,
+    NUM_GIRLS,
+    STATE,
+    TABLE_NAME,
+)
+from tests.example_data.data_loading.data_definitions.types import (
+    TableMetaData,
+    TableMetaDataFactory,
+)
+
+BIRTH_NAMES_COLUMNS = {
+    DS: DateTime,
+    GENDER: String(16),
+    NAME: String(255),
+    NUM: Integer,
+    STATE: String(10),
+    NUM_BOYS: Integer,
+    NUM_GIRLS: Integer,
+}
+
+BIRTH_NAMES_COLUMNS_WITHOUT_DATETIME = {
+    DS: String(255),
+    GENDER: String(16),
+    NAME: String(255),
+    NUM: Integer,
+    STATE: String(10),
+    NUM_BOYS: Integer,
+    NUM_GIRLS: Integer,
+}
+
+
+class BirthNamesMetaDataFactory(TableMetaDataFactory):
+    _datetime_type_support: bool
+
+    def __init__(self, datetime_type_support: bool = True):
+        self._datetime_type_support = datetime_type_support
+
+    def make(self) -> TableMetaData:
+        if self._datetime_type_support:
+            return TableMetaData(TABLE_NAME, BIRTH_NAMES_COLUMNS.copy())
+        return TableMetaData(TABLE_NAME, BIRTH_NAMES_COLUMNS_WITHOUT_DATETIME.copy())