[Python] Getting "Container not found" error when trying to modify GridDB container column...

I need to add columns to an existing GridDB container in my Python application, but getting a "Container not found" error when trying to modify the ColumnInfo after container creation.

`import griddb_python as griddb

Original container creation works fine


container_info = griddb.ContainerInfo("sensor_data",

[ ["timestamp", griddb.Type.TIMESTAMP],

["sensor_id", griddb.Type.STRING],

["temperature", griddb.Type.DOUBLE]

],

griddb.ContainerType.TIME_SERIES, True)

container = store.put_container(container_info)

This fails with "Container not found" error


try:

new_column_info = griddb.ContainerInfo("sensor_data",

[

["timestamp", griddb.Type.TIMESTAMP],

["sensor_id", griddb.Type.STRING],

["temperature", griddb.Type.DOUBLE],

["humidity", griddb.Type.DOUBLE]

],

griddb.ContainerType.TIME_SERIES, True)

modified_container = store.put_container(new_column_info) # FAILS HERE

except Exception as e: print(f"Error: {e}")`

I need to asked three specific questions

Why does put_container() with modified ColumnInfo throw "Container not found"?

Is there a different API method for adding columns to existing containers?

Do I need to drop and recreate the container, or can I modify schema in-place?

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