feat: ability to use unlogged table on Postgres

packages/postgres/README.md

@@ -51,6 +51,12 @@ import {createKeyv} from '@keyv/postgres';
 const keyv = createKeyv({ uri: 'postgresql://user:pass@localhost:5432/dbname', table: 'cache', schema: 'keyv' });
 ```
 
+For using of [unlogged](https://www.postgresql.org/docs/current/sql-createtable.html#SQL-CREATETABLE-UNLOGGED) Postgres table rather than logged pass `useUnloggedTable` option.
+
+```js
+const keyv = new Keyv(new KeyvPostgres('postgresql://user:pass@localhost:5432/dbname'), { table: 'cache', useUnloggedTable: true });
+```
+
 ## Testing
 
 When testing you can use our `docker compose` postgresql instance by having docker installed and running. This will start a postgres server, run the tests, and stop the server:

packages/postgres/src/index.ts

@@ -35,7 +35,7 @@ export class KeyvPostgres extends EventEmitter implements KeyvStoreAdapter {
 			...options,
 		};
 
-		let createTable = `CREATE TABLE IF NOT EXISTS ${this.opts.schema!}.${this.opts.table!}(key VARCHAR(${Number(this.opts.keySize!)}) PRIMARY KEY, value TEXT )`;
+		let createTable = `CREATE${this.opts.useUnloggedTable ? ' UNLOGGED ' : ' '}TABLE IF NOT EXISTS ${this.opts.schema!}.${this.opts.table!}(key VARCHAR(${Number(this.opts.keySize!)}) PRIMARY KEY, value TEXT )`;
 
 		if (this.opts.schema !== 'public') {
 			createTable = `CREATE SCHEMA IF NOT EXISTS ${this.opts.schema!}; ${createTable}`;

packages/postgres/src/types.ts

@@ -27,6 +27,7 @@ export type KeyvPostgresOptions = {
 	ssl?: any;
 	dialect?: string;
 	iterationLimit?: number;
+	useUnloggedTable?: boolean;
 } & PoolConfig;
 
 export type Query = (sqlString: string, values?: any) => Promise<any[]>;

packages/postgres/test/test.ts

@@ -83,3 +83,9 @@ test.it('helper to create Keyv instance with postgres', async t => {
 	t.expect(await keyv.set('foo', 'bar')).toBe(true);
 	t.expect(await keyv.get('foo')).toBe('bar');
 });
+
+test.it('test unlogged table', async t => {
+	const keyv = createKeyv({uri: postgresUri, useUnloggedTable: true});
+	t.expect(await keyv.set('foo', 'bar')).toBe(true);
+	t.expect(await keyv.get('foo')).toBe('bar');
+});