How to filter and insert data in milvus-haystack?

[Hyongyi]

Hi, i'd like to ask a few questions about how to use milvus-haystack.

I'm developing a bot using LLM with milvus-haystack. And I've gone through official website. but couldn't figure it out these two problems. Could you please help me?

First question :
If i insert data like this format(refer to first image), is it possible to filter "meta" data? I managed to select data using "content" like this format.
{
"store_name": "test",
"content": "",
"meta": {},
"filters": {
"content": "Test"
}
}

But, I couldn't figure out how to filter "meta" (i mean dict type, string type work well). I am only able to filter it in only Python now(back-end). If it is possible to filter dict type in front-end, could you please share it?

*"report_key_example2.report_code": "repokey" this one didn't work.

Second question :
I created a collection using milvus-haystack function which is "_create_collection" with "auto_id=True". I do know "wrtie_document" method create collection by itself. But the reason i didn't use the method is i want to insert dupilcated "content". Since "write_document" generates id with "content" and doesn't allow it.

Aftter i created a collection, i tried to insert data using "write_documents" but it raise an error which is like this "pymilvus.exceptions.ParamError: <ParamError: (code=1, message=auto id enabled, id shouldn't in entities[0])> "

Is there other ways to insert data when the target collection is set as "auto_id=True"?

Thanks