[Bug] Azure Table row key not honoured

[d-s-dc]

Expected Behavior

I want to read only rows for specific row key and partition key from a table storage in azure.

Actual Behavior

The function returned all rows for the partition instead of filtering on row key.

Steps to Reproduce

1. Create a python v2 function in vs code on mac.
2. Specify the table as input binding with the relevant details
3. Print the table data read

Relevant code being tried

import logging
import azure.functions as func
import json

app = func.FunctionApp()

@app.table_input(arg_name="messageJSON",
    connection="table_conn",
    table_name="lastSyncStatus",
    row_key="inspector",
    partition_key="category")
@app.timer_trigger(schedule="0 */5 * * * *", arg_name="myTimer", run_on_startup=False, use_monitor=False) 
def table_in_binding(myTimer: func.TimerRequest, messageJSON):
    message = json.loads(messageJSON)
    logging.info(message)

Relevant log output

Executing 'Functions.table_in_binding' (Reason='This function was programmatically called via the host APIs.', Id=33c96dd8-2a8a-4182-af0c-fe5b884e4373)
[2025-07-28T18:44:02.465Z] [{'PartitionKey': 'category', 'RowKey': 'infrastructure', 'last_sync_time': '2025-07-28T18:15:00.004945+00:00', 'pipeline_succeeded': False}, {'PartitionKey': 'category', 'RowKey': 'inspector', 'last_sync_time': '2025-07-28T18:15:00.004945+00:00', 'pipeline_succeeded': True}]
[2025-07-28T18:44:02.476Z] Executed 'Functions.table_in_binding' (Succeeded, Id=33c96dd8-2a8a-4182-af0c-fe5b884e4373, Duration=1025ms)

requirements.txt file

azure-functions

Where are you facing this problem?

Local - Core Tools

Function app name

No response

Additional Information

No response

[AartBluestoke]

I have seen this and was in the process of diagnosing the issue.
It is to do with the binding of the output type. At bind time the host missidentifies the output as an array type not a single object type so even though the host has an table entity binding with a row key it falls back to a query pattern which only uses the partition.

[AartBluestoke]

You can reproduce this in vscode using the local azurite storage emulator.