Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nFy8H-0000sv-VP for pgsql-sql@arkaria.postgresql.org; Fri, 04 Feb 2022 12:56:10 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1nFy8G-000632-Nm for pgsql-sql@arkaria.postgresql.org; Fri, 04 Feb 2022 12:56:08 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nFy8G-00062s-CU for pgsql-sql@lists.postgresql.org; Fri, 04 Feb 2022 12:56:08 +0000 Received: from lana.depesz.com ([88.198.49.178] helo=depesz.com) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nFy89-0004zF-T2 for pgsql-sql@lists.postgresql.org; Fri, 04 Feb 2022 12:56:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=depesz.com; s=20170201; h=In-Reply-To:Content-Type:MIME-Version:References:Reply-To: Message-ID:Subject:Cc:To:Sender:From:Date:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=PoOW8kWOwKvMhfxmI5lx4O/BWfnFDurz8SyrEhG2gyE=; b=a686NxGaf2YEi80Gtp93qsIJU6 8zkv7gitEMKmEzayiHvpQ1ePx9OHtigH4HthdxP9SDRMbolHJFS3zbYCsElDbiidaECETZw6xvew6 I186fTqwaC8kaJ+ddSqOuPuUu/w5ajVrgVqMcot7kWH8I2IiMgLMRR8q1k3qkQPypO9Q=; Received: from lana.depesz.com ([88.198.49.178] helo=depesz.com) by depesz.com with esmtpa (Exim 4.92) (envelope-from ) id 1nFy86-00062N-MI; Fri, 04 Feb 2022 13:55:58 +0100 Date: Fri, 4 Feb 2022 13:55:58 +0100 From: hubert depesz lubaczewski Sender: depesz@depesz.com To: Shaozhong SHI Cc: pgsql-sql Subject: Re: How best to work around the issue - regex string cannot contain brackets Message-ID: <20220204125558.GA31459@depesz.com> Reply-To: depesz@depesz.com References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On Thu, Feb 03, 2022 at 04:53:18PM +0000, Shaozhong SHI wrote: > One would consider the following would work, but it did not because the > brackets. > select regexp_matches('Department for Transport (Parking)', 'Department for > Transport (Parking)', 'g') > Can anyone enlighten me? Perhaps you don't want regexp matching, but simple equality or substring match? depesz