Add $not operator to list of supported operator in pgvector doc-string (#69)

eyurtsev · web-flow · commit 7129e2bb0cac · 2024-06-10T14:53:26.000-04:00
Document $not operator
diff --git a/langchain_postgres/vectorstores.py b/langchain_postgres/vectorstores.py
@@ -318,6 +318,7 @@ class PGVector(VectorStore):
     * $ilike: Case insensitive like operator
     * $and: Logical AND operator
     * $or: Logical OR operator
+    * $not: Logical NOT operator
 
     Example:
 
