redis缓存替换+pgvector向量替换

init/pgvector-init.sql

@@ -0,0 +1,12 @@
+CREATE EXTENSION IF NOT EXISTS vector;
+
+CREATE TABLE IF NOT EXISTS chat_record_vectors (
+  id BIGSERIAL PRIMARY KEY,
+  record_id BIGINT NOT NULL,
+  keywords_text TEXT NOT NULL,
+  embedding vector(1024) NOT NULL,
+  created_at BIGINT NOT NULL
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS uq_chat_record_vectors_record_id
+  ON chat_record_vectors(record_id);