feat(MySql Node): use resource locator component for table parameter (#4313)

insert/update operation table parameter as resource locator

packages/nodes-base/nodes/MySql/GenericFunctions.ts

@@ -1,4 +1,5 @@
-import { IDataObject, INodeExecutionData } from 'n8n-workflow';
+import { ICredentialDataDecryptedObject, IDataObject, ILoadOptionsFunctions, INodeExecutionData, INodeListSearchResult } from 'n8n-workflow';
+import mysql2 from 'mysql2/promise';
 
 /**
  * Returns of copy of the items which only contains the json data and
@@ -22,3 +23,44 @@ export function copyInputItems(items: INodeExecutionData[], properties: string[]
 		return newItem;
 	});
 }
+
+export function createConnection(credentials: ICredentialDataDecryptedObject): Promise<mysql2.Connection> {
+	const { ssl, caCertificate, clientCertificate, clientPrivateKey, ...baseCredentials } =
+		credentials;
+
+	if (ssl) {
+		baseCredentials.ssl = {};
+
+		if (caCertificate) {
+			baseCredentials.ssl.ca = caCertificate;
+		}
+
+		if (clientCertificate || clientPrivateKey) {
+			baseCredentials.ssl.cert = clientCertificate;
+			baseCredentials.ssl.key = clientPrivateKey;
+		}
+	}
+
+	return mysql2.createConnection(baseCredentials);
+}
+
+export async function searchTables(
+	this: ILoadOptionsFunctions,
+	query?: string,
+): Promise<INodeListSearchResult> {
+	const credentials = await this.getCredentials('mySql');
+	const connection = await createConnection(credentials);
+	const sql = `
+	SELECT table_name FROM information_schema.tables
+	WHERE table_schema = '${credentials.database}'
+		and table_name like '%${query || ''}%'
+	ORDER BY table_name
+	`;
+	const [rows] = await connection.query(sql);
+	const results = (rows as IDataObject[]).map(r => ({
+		name: r.TABLE_NAME as string,
+		value: r.TABLE_NAME as string,
+	}));
+	connection.end();
+	return { results };
+}