Feat: Allow empty namespaces in stores

redis has not been updated

Signed-off-by: Jytesh <44925963+Jytesh@users.noreply.github.com>

packages/keyv-mongo/src/index.js

@@ -96,13 +96,13 @@ class KeyvMongo extends EventEmitter {
 
 	clear() {
 		return this.connect
-			.then(store => store.deleteMany({ key: new RegExp(`^${this.namespace}:`) })
+			.then(store => store.deleteMany({ key: new RegExp(`^${this.namespace}`) })
 				.then(() => undefined));
 	}
 
 	async * iterator() {
 		const iterator = await this.connect
-			.then(store => store.find({ key: new RegExp(`^${this.namespace}:`) }).map(x => {
+			.then(store => store.find({ key: new RegExp(`^${this.namespace}`) }).map(x => {
 				return [x.key, x.value];
 			}));
 		yield * iterator;

packages/keyv-sql/src/index.js

@@ -65,14 +65,14 @@ class KeyvSql extends EventEmitter {
 	}
 
 	clear() {
-		const del = this.options.dialect === 'mysql' ? `DELETE FROM \`${this.options.table}\` WHERE (\`${this.options.table}\`.\`key\` LIKE '${this.namespace}:%')` : `DELETE FROM "${this.options.table}" WHERE ("${this.options.table}"."key" LIKE '${this.namespace}:%')`;
+		const del = this.options.dialect === 'mysql' ? `DELETE FROM \`${this.options.table}\` WHERE (\`${this.options.table}\`.\`key\` LIKE '${this.namespace}%')` : `DELETE FROM "${this.options.table}" WHERE ("${this.options.table}"."key" LIKE '${this.namespace}%')`;
 		return this.query(del)
 			.then(() => undefined);
 	}
 
 	async * iterator() {
 		const limit = Number.parseInt(this.options.iterationLimit, 10);
-		const selectChunk = this.options.dialect === 'mysql' ? `SELECT * FROM \`${this.options.table}\` WHERE (\`${this.options.table}\`.\`key\` LIKE '${this.namespace}:%') LIMIT ${limit} OFFSET ` : `SELECT * FROM "${this.options.table}" WHERE ("${this.options.table}"."key" LIKE '${this.namespace}:%') LIMIT ${limit} OFFSET `;
+		const selectChunk = this.options.dialect === 'mysql' ? `SELECT * FROM \`${this.options.table}\` WHERE (\`${this.options.table}\`.\`key\` LIKE '${this.namespace}%') LIMIT ${limit} OFFSET ` : `SELECT * FROM "${this.options.table}" WHERE ("${this.options.table}"."key" LIKE '${this.namespace}%') LIMIT ${limit} OFFSET `;
 
 		async function * iterate(offset, query) {
 			const entries = await query(selectChunk + offset);

packages/keyv/src/index.js

@@ -25,7 +25,7 @@ class Keyv extends EventEmitter {
 			this.store.on('error', error => this.emit('error', error));
 		}
 
-		this.store.namespace = this.options.namespace;
+		this.store.namespace = this.options.namespace ? this.options.namespace + ':' : '';
 
 		const generateIterator = iterator => async function * () {
 			for await (const [key, raw] of (typeof iterator === 'function' ? iterator() : iterator)) {