Feature/add vector upsert ability

[HenryHengZJ]

Currently Vector Store has Upsert and Load Existing Index nodes.

• Problem - when user use an upsert node, and changed some configs on the flow, and start asking question in chat, it causes the upsert to be done again.

• Solution - combine upsert and load existing into a node, and have a UPSERT button on UI to allow user to manually upsert, hence the node on flow will always load from existing index.

[tirongi]

In any case upserting nodes should be kept, as they are useful in case you need to create a flow (and hence an API) for upserting documents from a specific folder.
Another solution could be that of having a flag in the node configuration allowing the user to specify if the node should upsert documents or use those already upserted.

[HenryHengZJ]

@tirongi in this new update, you have a separate API for upsert:

reason we will be deprecating these upserts nodes is because when there is a slight change on the flow, everything will be re-upsert again, and we want to avoid that, leaving user with the options to manually kick off the upsert

[HenryHengZJ]

@vinodkiran everything should be addressed. Kindly take a look again

[vijaykammili]

@tirongi in this new update, you have a separate API for upsert:

reason we will be deprecating these upserts nodes is because when there is a slight change on the flow, everything will be re-upsert again, and we want to avoid that, leaving user with the options to manually kick off the upsert

@HenryHengZJ - What is the process to get to this screen? I don't see this screen in the latest build. I see deprecating Vector stores and NEW Vector stores but can't see the screen where you have the upsert button.