Adding support more filters pinecone (#9683)

adding support for one more filter  i.e not in array for pinecone vector store.

.pre-commit-config.yaml

@@ -64,6 +64,7 @@ repos:
       - id: codespell
         additional_dependencies: [tomli]
         exclude: llama_index/_static
+        args: ["--ignore-words-list", "nin"]
   - repo: https://github.com/srstevenson/nb-clean
     rev: 3.1.0
     hooks:

llama_index/vector_stores/pinecone.py

-"""Pinecone Vector store index.
+"""
+Pinecone Vector store index.
 
 An index that that is built on top of an existing vector store.
 
@@ -61,6 +62,8 @@ def _transform_pinecone_filter_operator(operator: str) -> str:
         return "$lte"
     elif operator == "in":
         return "$in"
+    elif operator == "nin":
+        return "$nin"
     else:
         raise ValueError(f"Filter operator {operator} not supported")
 

llama_index/vector_stores/types.py

@@ -69,6 +69,7 @@ class FilterOperator(str, Enum):
     GTE = ">="  # greater than or equal to (int, float)
     LTE = "<="  # less than or equal to (int, float)
     IN = "in"  # In array (string or number)
+    NIN = "nin"  # Not in array (string or number)
 
 
 class FilterCondition(str, Enum):