n8n/docs/generated/postgres-schema/public.agents_memory_entries.md

public.agents_memory_entries

Columns

Name	Type	Default	Nullable	Children	Parents	Comment
agentId	varchar(36)		false		public.agents	Agent that owns this episodic memory entry
content	text		false
contentHash	varchar(64)		false
createdAt	timestamp(3) with time zone	CURRENT_TIMESTAMP(3)	false
embedding	json		true			Embedding vector for episodic recall
embeddingModel	varchar(128)		true			Embedding model used to produce embedding
id	varchar(36)		false	public.agents_memory_entries public.agents_memory_entry_sources
lastSeenAt	timestamp(3) with time zone		false			Last time equivalent content was observed; updatedAt tracks row mutation time
metadata	json		true			Optional system metadata for ranking and debugging
resourceId	varchar(255)		false		public.agents_resources	agents_resources.id partition used for episodic recall scope
status	varchar(16)		false
supersededBy	varchar(36)		true		public.agents_memory_entries	Self-reference to replacement memory entry
updatedAt	timestamp(3) with time zone	CURRENT_TIMESTAMP(3)	false

Constraints

Name	Type	Definition
CHK_agents_memory_entries_status	CHECK	CHECK (((status)::text = ANY ((ARRAY['active'::character varying, 'superseded'::character varying, 'dropped'::character varying])::text[])))
FK_0edf1226b77ddc525eae4938079	FOREIGN KEY	FOREIGN KEY ("supersededBy") REFERENCES agents_memory_entries(id)
FK_1443a75e59adbfb796071d66393	FOREIGN KEY	FOREIGN KEY ("resourceId") REFERENCES agents_resources(id) ON DELETE CASCADE
FK_28e981fb675e9b44ce02f0ec1dd	FOREIGN KEY	FOREIGN KEY ("agentId") REFERENCES agents(id) ON DELETE CASCADE
PK_bfbc45dc88f66fae4e4b4a15fec	PRIMARY KEY	PRIMARY KEY (id)
agents_memory_entries_agentId_not_null	n	NOT NULL "agentId"
agents_memory_entries_contentHash_not_null	n	NOT NULL "contentHash"
agents_memory_entries_content_not_null	n	NOT NULL content
agents_memory_entries_createdAt_not_null	n	NOT NULL "createdAt"
agents_memory_entries_id_not_null	n	NOT NULL id
agents_memory_entries_lastSeenAt_not_null	n	NOT NULL "lastSeenAt"
agents_memory_entries_resourceId_not_null	n	NOT NULL "resourceId"
agents_memory_entries_status_not_null	n	NOT NULL status
agents_memory_entries_updatedAt_not_null	n	NOT NULL "updatedAt"

Indexes

Name	Definition
IDX_0edf1226b77ddc525eae493807	CREATE INDEX "IDX_0edf1226b77ddc525eae493807" ON public.agents_memory_entries USING btree ("supersededBy")
IDX_1443a75e59adbfb796071d6639	CREATE INDEX "IDX_1443a75e59adbfb796071d6639" ON public.agents_memory_entries USING btree ("resourceId")
IDX_a03e04e94bea8439dd166d4b52	CREATE UNIQUE INDEX "IDX_a03e04e94bea8439dd166d4b52" ON public.agents_memory_entries USING btree ("agentId", "resourceId", "contentHash")
IDX_aff2807b31eccbafe59d0474f0	CREATE INDEX "IDX_aff2807b31eccbafe59d0474f0" ON public.agents_memory_entries USING btree ("agentId", "resourceId", status, "createdAt", id)
PK_bfbc45dc88f66fae4e4b4a15fec	CREATE UNIQUE INDEX "PK_bfbc45dc88f66fae4e4b4a15fec" ON public.agents_memory_entries USING btree (id)

Relations

erDiagram

"public.agents_memory_entries" }o--|| "public.agents" : "FOREIGN KEY (#quot;agentId#quot;) REFERENCES agents(id) ON DELETE CASCADE"
"public.agents_memory_entries" }o--o| "public.agents_memory_entries" : "FOREIGN KEY (#quot;supersededBy#quot;) REFERENCES agents_memory_entries(id)"
"public.agents_memory_entry_sources" }o--|| "public.agents_memory_entries" : "FOREIGN KEY (#quot;memoryEntryId#quot;) REFERENCES agents_memory_entries(id) ON DELETE CASCADE"
"public.agents_memory_entries" }o--|| "public.agents_resources" : "FOREIGN KEY (#quot;resourceId#quot;) REFERENCES agents_resources(id) ON DELETE CASCADE"

"public.agents_memory_entries" {
  varchar_36_ agentId FK
  text content
  varchar_64_ contentHash
  timestamp_3__with_time_zone createdAt
  json embedding
  varchar_128_ embeddingModel
  varchar_36_ id
  timestamp_3__with_time_zone lastSeenAt
  json metadata
  varchar_255_ resourceId FK
  varchar_16_ status
  varchar_36_ supersededBy FK
  timestamp_3__with_time_zone updatedAt
}
"public.agents" {
  varchar_36_ activeVersionId FK
  timestamp_3__with_time_zone createdAt
  varchar_36_ id
  json integrations
  varchar_128_ name
  varchar_255_ projectId FK
  json schema
  json skills
  json tools
  timestamp_3__with_time_zone updatedAt
  varchar_36_ versionId
}
"public.agents_memory_entry_sources" {
  varchar_36_ agentId FK
  timestamp_3__with_time_zone createdAt
  varchar_64_ evidenceHash
  text evidenceText
  varchar_36_ id
  varchar_36_ memoryEntryId FK
  varchar_36_ observationId FK
  varchar_255_ threadId FK
  timestamp_3__with_time_zone updatedAt
}
"public.agents_resources" {
  timestamp_3__with_time_zone createdAt
  varchar_255_ id
  text metadata
  timestamp_3__with_time_zone updatedAt
}

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