bito-code-review[bot] commented on code in PR #37368:
URL: https://github.com/apache/superset/pull/37368#discussion_r2718385511


##########
tests/unit_tests/db_engine_specs/test_mongodb.py:
##########
@@ -0,0 +1,128 @@
+# 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 datetime import datetime
+from typing import Optional
+
+import pytest
+
+from superset.constants import TimeGrain
+from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
+from tests.unit_tests.fixtures.common import dttm  # noqa: F401
+
+
[email protected](
+    "target_type,expected_result",
+    [
+        ("text", "'2019-01-02 03:04:05'"),
+        ("TEXT", "'2019-01-02 03:04:05'"),
+        ("dateTime", "'2019-01-02 03:04:05'"),
+        ("DateTime", "'2019-01-02 03:04:05'"),
+        ("DATETIME", "'2019-01-02 03:04:05'"),
+        ("string", "'2019-01-02 03:04:05'"),
+        ("String", "'2019-01-02 03:04:05'"),
+        ("STRING", "'2019-01-02 03:04:05'"),
+        ("integer", None),
+        ("number", None),
+        ("unknowntype", None),
+    ],
+)
+def test_convert_dttm(
+    target_type: str,
+    expected_result: Optional[str],
+    dttm: datetime,  # noqa: F811
+) -> None:
+    """Test datetime conversion for various MongoDB column types.
+    """
+    from superset.db_engine_specs.mongodb import (
+        MongoDBEngineSpec as spec,  # noqa: N813
+    )
+
+    assert_convert_dttm(spec, target_type, expected_result, dttm)
+
+
+def test_epoch_to_dttm() -> None:
+    """Test epoch to datetime conversion."""
+    from superset.db_engine_specs.mongodb import (
+        MongoDBEngineSpec as spec,  # noqa: N813
+    )
+
+    # MongoDB engine just passes through the column expression
+    assert spec.epoch_to_dttm() == "{col}"

Review Comment:
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Incorrect test expectation for epoch conversion</b></div>
   <div id="fix">
   
   The test expects epoch_to_dttm() to return "{col}", but the implementation 
returns "datetime({col}, 'unixepoch')", which will cause this assertion to 
fail. It looks like the test comment assumes pass-through behavior, but the 
code uses SQLite-style datetime conversion for PyMongoSQL compatibility.
   </div>
   
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    --- a/tests/unit_tests/db_engine_specs/test_mongodb.py
    +++ b/tests/unit_tests/db_engine_specs/test_mongodb.py
    @@ -63,7 +63,7 @@ def test_epoch_to_dttm() -> None:
         # MongoDB engine just passes through the column expression
         assert spec.epoch_to_dttm() == "{col}"
    +    assert spec.epoch_to_dttm() == "datetime({col}, 'unixepoch')"
   ```
   
   </div>
   </details>
   
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run #53b056</i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



##########
tests/unit_tests/db_engine_specs/test_mongodb.py:
##########
@@ -0,0 +1,128 @@
+# 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 datetime import datetime
+from typing import Optional
+
+import pytest
+
+from superset.constants import TimeGrain
+from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
+from tests.unit_tests.fixtures.common import dttm  # noqa: F401
+
+
[email protected](
+    "target_type,expected_result",
+    [
+        ("text", "'2019-01-02 03:04:05'"),
+        ("TEXT", "'2019-01-02 03:04:05'"),
+        ("dateTime", "'2019-01-02 03:04:05'"),
+        ("DateTime", "'2019-01-02 03:04:05'"),
+        ("DATETIME", "'2019-01-02 03:04:05'"),
+        ("string", "'2019-01-02 03:04:05'"),
+        ("String", "'2019-01-02 03:04:05'"),
+        ("STRING", "'2019-01-02 03:04:05'"),
+        ("integer", None),
+        ("number", None),
+        ("unknowntype", None),
+    ],
+)
+def test_convert_dttm(
+    target_type: str,
+    expected_result: Optional[str],
+    dttm: datetime,  # noqa: F811
+) -> None:
+    """Test datetime conversion for various MongoDB column types.
+    """
+    from superset.db_engine_specs.mongodb import (
+        MongoDBEngineSpec as spec,  # noqa: N813
+    )
+
+    assert_convert_dttm(spec, target_type, expected_result, dttm)
+
+
+def test_epoch_to_dttm() -> None:
+    """Test epoch to datetime conversion."""
+    from superset.db_engine_specs.mongodb import (
+        MongoDBEngineSpec as spec,  # noqa: N813
+    )
+
+    # MongoDB engine just passes through the column expression
+    assert spec.epoch_to_dttm() == "{col}"
+
+
[email protected](
+    "grain,expected_expression",
+    [
+        (None, "{col}"),
+        (TimeGrain.SECOND, "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:%S', {col}))"),
+        (TimeGrain.MINUTE, "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:00', {col}))"),
+        (TimeGrain.HOUR, "DATETIME(STRFTIME('%Y-%m-%dT%H:00:00', {col}))"),
+        (TimeGrain.DAY, "DATETIME({col}, 'start of day')"),
+        (
+            TimeGrain.WEEK,
+            "DATETIME({col}, 'start of day',             "
+            "-strftime('%w', {col}) || ' days')",
+        ),
+        (TimeGrain.MONTH, "DATETIME({col}, 'start of month')"),
+        (
+            TimeGrain.QUARTER,
+            "DATETIME({col}, 'start of month', "
+            "printf('-%d month', (strftime('%m', {col}) - 1) % 3))",
+        ),
+        (TimeGrain.YEAR, "DATETIME({col}, 'start of year')"),
+        (
+            TimeGrain.WEEK_ENDING_SATURDAY,
+            "DATETIME({col}, 'start of day', 'weekday 6')",
+        ),
+        (
+            TimeGrain.WEEK_ENDING_SUNDAY,
+            "DATETIME({col}, 'start of day', 'weekday 0')",
+        ),
+        (
+            TimeGrain.WEEK_STARTING_SUNDAY,
+            "DATETIME({col}, 'start of day', 'weekday 0', '-7 days')",
+        ),

Review Comment:
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Wrong expected SQL for week starting Sunday</b></div>
   <div id="fix">
   
   The test expects a different SQL expression for WEEK_STARTING_SUNDAY than 
what's in the implementation, which will cause assertion failure. The code uses 
-strftime('%w', {col}) || ' days' to adjust to Sunday start, but the test has 
'weekday 0', '-7 days' which would go to the previous Sunday.
   </div>
   
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    --- a/tests/unit_tests/db_engine_specs/test_mongodb.py
    +++ b/tests/unit_tests/db_engine_specs/test_mongodb.py
    @@ -96,8 +96,7 @@
             (
                 TimeGrain.WEEK_STARTING_SUNDAY,
    -            "DATETIME({col}, 'start of day', 'weekday 0', '-7 days')",
    +            "DATETIME({col}, 'start of day', -strftime('%w', {col}) || ' 
days')",
             ),
   ```
   
   </div>
   </details>
   
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run #53b056</i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



##########
superset/db_engine_specs/mongodb.py:
##########
@@ -0,0 +1,112 @@
+# 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.
+"""MongoDB engine spec for Superset.
+
+Uses PyMongoSQL (https://github.com/passren/PyMongoSQL) as the SQLAlchemy 
dialect
+to enable SQL queries on MongoDB collections.
+"""
+
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any, Optional
+
+from sqlalchemy import types
+
+from superset.constants import TimeGrain
+from superset.db_engine_specs.base import BaseEngineSpec, DatabaseCategory
+
+
+class MongoDBEngineSpec(BaseEngineSpec):
+    """Engine spec for MongoDB using PyMongoSQL dialect."""
+
+    engine = "mongodb"
+    engine_name = "MongoDB"
+    force_column_alias_quotes = False
+
+    metadata = {
+        "description": (
+            "MongoDB is a document-oriented, operational NoSQL database."
+        ),
+        "logo": "mongodb.png",
+        "homepage_url": "https://www.mongodb.com/";,
+        "categories": [
+            DatabaseCategory.SEARCH_NOSQL,
+            DatabaseCategory.PROPRIETARY,
+        ],
+        "pypi_packages": ["pymongosql"],
+        "connection_string": (
+            
"mongodb://{username}:{password}@{host}:{port}/{database}?mode=superset"
+        ),
+        "parameters": {
+            "username": "Username for MongoDB",
+            "password": "Password for MongoDB",
+            "host": "MongoDB host",
+            "port": "MongoDB port",
+            "database": "Database name",
+        },
+        "notes": "Uses PartiQL for SQL queries. Requires mode=superset 
parameter.",
+        "docs_url": "https://github.com/passren/PyMongoSQL";,
+    }
+
+    _time_grain_expressions = {
+        None: "{col}",
+        TimeGrain.SECOND: "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:%S', {col}))",
+        TimeGrain.MINUTE: "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:00', {col}))",
+        TimeGrain.HOUR: "DATETIME(STRFTIME('%Y-%m-%dT%H:00:00', {col}))",
+        TimeGrain.DAY: "DATETIME({col}, 'start of day')",
+        TimeGrain.WEEK: (
+            "DATETIME({col}, 'start of day', "
+            "-strftime('%w', {col}) || ' days')"
+        ),
+        TimeGrain.MONTH: "DATETIME({col}, 'start of month')",
+        TimeGrain.QUARTER: (
+            "DATETIME({col}, 'start of month', "
+            "printf('-%d month', (strftime('%m', {col}) - 1) % 3))"
+        ),
+        TimeGrain.YEAR: "DATETIME({col}, 'start of year')",
+        TimeGrain.WEEK_ENDING_SATURDAY: "DATETIME({col}, 'start of day', 
'weekday 6')",
+        TimeGrain.WEEK_ENDING_SUNDAY: "DATETIME({col}, 'start of day', 
'weekday 0')",
+        TimeGrain.WEEK_STARTING_SUNDAY: (
+            "DATETIME({col}, 'start of day', -strftime('%w', {col}) || ' 
days')"
+        ),
+        TimeGrain.WEEK_STARTING_MONDAY: (
+            "DATETIME({col}, 'start of day', "
+            "'-' || ((strftime('%w', {col}) + 6) % 7) || ' days')"
+        ),
+    }
+
+    @classmethod
+    def epoch_to_dttm(cls) -> str:
+        return "datetime({col}, 'unixepoch')"

Review Comment:
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Incorrect epoch conversion</b></div>
   <div id="fix">
   
   The epoch_to_dttm method returns a SQLite-style expression, but the test 
expects a pass-through of the column for MongoDB. Update to return "{col}" as 
MongoDB handles epoch conversion differently.
   </div>
   
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    --- superset/db_engine_specs/mongodb.py
    +++ superset/db_engine_specs/mongodb.py
    @@ -94,2 +94,2 @@
    -    @classmethod
    -    def epoch_to_dttm(cls) -> str:
    -        return "datetime({col}, 'unixepoch')"
    +    @classmethod
    +    def epoch_to_dttm(cls) -> str:
    +        return "{col}"
   ```
   
   </div>
   </details>
   
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run #53b056</i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



##########
superset/db_engine_specs/mongodb.py:
##########
@@ -0,0 +1,112 @@
+# 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.
+"""MongoDB engine spec for Superset.
+
+Uses PyMongoSQL (https://github.com/passren/PyMongoSQL) as the SQLAlchemy 
dialect
+to enable SQL queries on MongoDB collections.
+"""
+
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any, Optional
+
+from sqlalchemy import types
+
+from superset.constants import TimeGrain
+from superset.db_engine_specs.base import BaseEngineSpec, DatabaseCategory
+
+
+class MongoDBEngineSpec(BaseEngineSpec):
+    """Engine spec for MongoDB using PyMongoSQL dialect."""
+
+    engine = "mongodb"
+    engine_name = "MongoDB"
+    force_column_alias_quotes = False
+
+    metadata = {
+        "description": (
+            "MongoDB is a document-oriented, operational NoSQL database."
+        ),
+        "logo": "mongodb.png",
+        "homepage_url": "https://www.mongodb.com/";,
+        "categories": [
+            DatabaseCategory.SEARCH_NOSQL,
+            DatabaseCategory.PROPRIETARY,
+        ],
+        "pypi_packages": ["pymongosql"],
+        "connection_string": (
+            
"mongodb://{username}:{password}@{host}:{port}/{database}?mode=superset"
+        ),
+        "parameters": {
+            "username": "Username for MongoDB",
+            "password": "Password for MongoDB",
+            "host": "MongoDB host",
+            "port": "MongoDB port",
+            "database": "Database name",
+        },
+        "notes": "Uses PartiQL for SQL queries. Requires mode=superset 
parameter.",
+        "docs_url": "https://github.com/passren/PyMongoSQL";,
+    }
+
+    _time_grain_expressions = {
+        None: "{col}",
+        TimeGrain.SECOND: "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:%S', {col}))",
+        TimeGrain.MINUTE: "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:00', {col}))",
+        TimeGrain.HOUR: "DATETIME(STRFTIME('%Y-%m-%dT%H:00:00', {col}))",
+        TimeGrain.DAY: "DATETIME({col}, 'start of day')",
+        TimeGrain.WEEK: (
+            "DATETIME({col}, 'start of day', "
+            "-strftime('%w', {col}) || ' days')"
+        ),
+        TimeGrain.MONTH: "DATETIME({col}, 'start of month')",
+        TimeGrain.QUARTER: (
+            "DATETIME({col}, 'start of month', "
+            "printf('-%d month', (strftime('%m', {col}) - 1) % 3))"
+        ),
+        TimeGrain.YEAR: "DATETIME({col}, 'start of year')",
+        TimeGrain.WEEK_ENDING_SATURDAY: "DATETIME({col}, 'start of day', 
'weekday 6')",
+        TimeGrain.WEEK_ENDING_SUNDAY: "DATETIME({col}, 'start of day', 
'weekday 0')",
+        TimeGrain.WEEK_STARTING_SUNDAY: (
+            "DATETIME({col}, 'start of day', -strftime('%w', {col}) || ' 
days')"
+        ),
+        TimeGrain.WEEK_STARTING_MONDAY: (
+            "DATETIME({col}, 'start of day', "
+            "'-' || ((strftime('%w', {col}) + 6) % 7) || ' days')"
+        ),

Review Comment:
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Wrong week start expression</b></div>
   <div id="fix">
   
   The WEEK_STARTING_MONDAY time grain expression does not match the test 
expectation. Update to the expected expression for correct week start 
calculation.
   </div>
   
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    --- superset/db_engine_specs/mongodb.py
    +++ superset/db_engine_specs/mongodb.py
    @@ -87,4 +87,2 @@
    -        TimeGrain.WEEK_STARTING_MONDAY: (
    -            "DATETIME({col}, 'start of day', "
    -            "'-' || ((strftime('%w', {col}) + 6) % 7) || ' days')"
    -        ),
    +        TimeGrain.WEEK_STARTING_MONDAY: "DATETIME({col}, 'start of day', 
'weekday 1', '-7 days')",
   ```
   
   </div>
   </details>
   
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run #53b056</i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



##########
superset/db_engine_specs/mongodb.py:
##########
@@ -0,0 +1,112 @@
+# 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.
+"""MongoDB engine spec for Superset.
+
+Uses PyMongoSQL (https://github.com/passren/PyMongoSQL) as the SQLAlchemy 
dialect
+to enable SQL queries on MongoDB collections.
+"""
+
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any, Optional
+
+from sqlalchemy import types
+
+from superset.constants import TimeGrain
+from superset.db_engine_specs.base import BaseEngineSpec, DatabaseCategory
+
+
+class MongoDBEngineSpec(BaseEngineSpec):
+    """Engine spec for MongoDB using PyMongoSQL dialect."""
+
+    engine = "mongodb"
+    engine_name = "MongoDB"
+    force_column_alias_quotes = False
+
+    metadata = {
+        "description": (
+            "MongoDB is a document-oriented, operational NoSQL database."
+        ),
+        "logo": "mongodb.png",
+        "homepage_url": "https://www.mongodb.com/";,
+        "categories": [
+            DatabaseCategory.SEARCH_NOSQL,
+            DatabaseCategory.PROPRIETARY,
+        ],
+        "pypi_packages": ["pymongosql"],
+        "connection_string": (
+            
"mongodb://{username}:{password}@{host}:{port}/{database}?mode=superset"
+        ),
+        "parameters": {
+            "username": "Username for MongoDB",
+            "password": "Password for MongoDB",
+            "host": "MongoDB host",
+            "port": "MongoDB port",
+            "database": "Database name",
+        },
+        "notes": "Uses PartiQL for SQL queries. Requires mode=superset 
parameter.",
+        "docs_url": "https://github.com/passren/PyMongoSQL";,
+    }
+
+    _time_grain_expressions = {
+        None: "{col}",
+        TimeGrain.SECOND: "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:%S', {col}))",
+        TimeGrain.MINUTE: "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:00', {col}))",
+        TimeGrain.HOUR: "DATETIME(STRFTIME('%Y-%m-%dT%H:00:00', {col}))",
+        TimeGrain.DAY: "DATETIME({col}, 'start of day')",
+        TimeGrain.WEEK: (
+            "DATETIME({col}, 'start of day', "
+            "-strftime('%w', {col}) || ' days')"
+        ),
+        TimeGrain.MONTH: "DATETIME({col}, 'start of month')",
+        TimeGrain.QUARTER: (
+            "DATETIME({col}, 'start of month', "
+            "printf('-%d month', (strftime('%m', {col}) - 1) % 3))"
+        ),
+        TimeGrain.YEAR: "DATETIME({col}, 'start of year')",
+        TimeGrain.WEEK_ENDING_SATURDAY: "DATETIME({col}, 'start of day', 
'weekday 6')",
+        TimeGrain.WEEK_ENDING_SUNDAY: "DATETIME({col}, 'start of day', 
'weekday 0')",
+        TimeGrain.WEEK_STARTING_SUNDAY: (
+            "DATETIME({col}, 'start of day', -strftime('%w', {col}) || ' 
days')"
+        ),

Review Comment:
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Wrong week start expression</b></div>
   <div id="fix">
   
   The WEEK_STARTING_SUNDAY time grain expression does not match the test 
expectation. Update to the expected SQLite-style expression for correct week 
start calculation.
   </div>
   
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    --- superset/db_engine_specs/mongodb.py
    +++ superset/db_engine_specs/mongodb.py
    @@ -82,2 +82,2 @@
    -        TimeGrain.WEEK_STARTING_SUNDAY: (
    -            "DATETIME({col}, 'start of day', -strftime('%w', {col}) || ' 
days')"
    -        ),
    +        TimeGrain.WEEK_STARTING_SUNDAY: "DATETIME({col}, 'start of day', 
'weekday 0', '-7 days')",
   ```
   
   </div>
   </details>
   
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run #53b056</i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



##########
tests/unit_tests/db_engine_specs/test_mongodb.py:
##########
@@ -0,0 +1,128 @@
+# 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 datetime import datetime
+from typing import Optional
+
+import pytest
+
+from superset.constants import TimeGrain
+from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
+from tests.unit_tests.fixtures.common import dttm  # noqa: F401
+
+
[email protected](
+    "target_type,expected_result",
+    [
+        ("text", "'2019-01-02 03:04:05'"),
+        ("TEXT", "'2019-01-02 03:04:05'"),
+        ("dateTime", "'2019-01-02 03:04:05'"),
+        ("DateTime", "'2019-01-02 03:04:05'"),
+        ("DATETIME", "'2019-01-02 03:04:05'"),
+        ("string", "'2019-01-02 03:04:05'"),
+        ("String", "'2019-01-02 03:04:05'"),
+        ("STRING", "'2019-01-02 03:04:05'"),
+        ("integer", None),
+        ("number", None),
+        ("unknowntype", None),
+    ],
+)
+def test_convert_dttm(
+    target_type: str,
+    expected_result: Optional[str],
+    dttm: datetime,  # noqa: F811
+) -> None:
+    """Test datetime conversion for various MongoDB column types.
+    """
+    from superset.db_engine_specs.mongodb import (
+        MongoDBEngineSpec as spec,  # noqa: N813
+    )
+
+    assert_convert_dttm(spec, target_type, expected_result, dttm)
+
+
+def test_epoch_to_dttm() -> None:
+    """Test epoch to datetime conversion."""
+    from superset.db_engine_specs.mongodb import (
+        MongoDBEngineSpec as spec,  # noqa: N813
+    )
+
+    # MongoDB engine just passes through the column expression
+    assert spec.epoch_to_dttm() == "{col}"
+
+
[email protected](
+    "grain,expected_expression",
+    [
+        (None, "{col}"),
+        (TimeGrain.SECOND, "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:%S', {col}))"),
+        (TimeGrain.MINUTE, "DATETIME(STRFTIME('%Y-%m-%dT%H:%M:00', {col}))"),
+        (TimeGrain.HOUR, "DATETIME(STRFTIME('%Y-%m-%dT%H:00:00', {col}))"),
+        (TimeGrain.DAY, "DATETIME({col}, 'start of day')"),
+        (
+            TimeGrain.WEEK,
+            "DATETIME({col}, 'start of day',             "
+            "-strftime('%w', {col}) || ' days')",
+        ),
+        (TimeGrain.MONTH, "DATETIME({col}, 'start of month')"),
+        (
+            TimeGrain.QUARTER,
+            "DATETIME({col}, 'start of month', "
+            "printf('-%d month', (strftime('%m', {col}) - 1) % 3))",
+        ),
+        (TimeGrain.YEAR, "DATETIME({col}, 'start of year')"),
+        (
+            TimeGrain.WEEK_ENDING_SATURDAY,
+            "DATETIME({col}, 'start of day', 'weekday 6')",
+        ),
+        (
+            TimeGrain.WEEK_ENDING_SUNDAY,
+            "DATETIME({col}, 'start of day', 'weekday 0')",
+        ),
+        (
+            TimeGrain.WEEK_STARTING_SUNDAY,
+            "DATETIME({col}, 'start of day', 'weekday 0', '-7 days')",
+        ),
+        (
+            TimeGrain.WEEK_STARTING_MONDAY,
+            "DATETIME({col}, 'start of day', 'weekday 1', '-7 days')",
+        ),

Review Comment:
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Wrong expected SQL for week starting Monday</b></div>
   <div id="fix">
   
   The expected SQL for WEEK_STARTING_MONDAY doesn't match the code's 
expression, leading to test failure. The implementation uses a calculation to 
adjust to Monday start, but the test has 'weekday 1', '-7 days' which shifts to 
the prior Monday.
   </div>
   
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    --- a/tests/unit_tests/db_engine_specs/test_mongodb.py
    +++ b/tests/unit_tests/db_engine_specs/test_mongodb.py
    @@ -100,8 +100,7 @@
             (
                 TimeGrain.WEEK_STARTING_MONDAY,
    -            "DATETIME({col}, 'start of day', 'weekday 1', '-7 days')",
    +            "DATETIME({col}, 'start of day', '-' || ((strftime('%w', 
{col}) + 6) % 7) || ' days')",
             ),
   ```
   
   </div>
   </details>
   
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run #53b056</i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



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