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langchain/docs/modules/indexes/vectorstores
rajib 1c51d3db0f
Created fix for 5475 (#5659)
Created fix for 5475
Currently in PGvector, we do not have any function that returns the
instance of an existing store. The from_documents always adds embeddings
and then returns the store. This fix is to add a function that will
return the instance of an existing store

Also changed the jupyter example for PGVector to show the example of
using the function

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Fixes # 5475

#### Before submitting

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#### Who can review?
@dev2049
@hwchase17 

Tag maintainers/contributors who might be interested:

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  @hwchase17 - project lead

  Tracing / Callbacks
  - @agola11

  Async
  - @agola11

  DataLoaders
  - @eyurtsev

  Models
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  Agents / Tools / Toolkits
  - @vowelparrot

  VectorStores / Retrievers / Memory
  - @dev2049

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---------

Co-authored-by: rajib76 <rajib76@yahoo.com>
Co-authored-by: Dev 2049 <dev.dev2049@gmail.com>
1 year ago
..
examples Created fix for 5475 (#5659) 1 year ago
getting_started.ipynb docs: improved `vectorstore` notebooks (#3724) 1 year ago