Vector Store Pg Vector¶

Node: vectorStorePGVector · Full type: @n8n/n8n-nodes-langchain.vectorStorePGVector · Version: 1.3

Credentials¶

postgres (alias: @postgres)

CREDENTIAL @postgres = postgres "My Vector Store Pg Vector"

Parameters¶

Parameter	Type	Default	Details
`mode`	options	"retrieve"	`load`, `insert`, `retrieve`, `retrieve-as-tool`
`toolName`	string	""	required
`toolDescription`	string	""	required
`tableName`	string	"n8n_vectors"
`embeddingBatchSize`	number	200
`options`	collection	{}	keys: `collection`, `columnNames`
`prompt`	string	""	required
`topK`	number	4
`includeDocumentMetadata`	boolean	true
`useReranker`	boolean	false
`id`	string	""	required

options children:

Parameter	Type	Default	Details
`collection`	fixedCollection	{...}	groups: `values`
`columnNames`	fixedCollection	{...}	groups: `values`

Example¶

NODE "vectorStorePGVector" @postgres AS "Vector Store Pg Vector" {
  toolName: {{ $json.toolName }},
  toolDescription: {{ $json.toolDescription }},
  prompt: {{ $json.prompt }},
  id: {{ $json.id }}
}