From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 922 invoked from network); 17 Feb 2021 01:10:14 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 17 Feb 2021 01:10:14 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 58B639CA68; Wed, 17 Feb 2021 11:10:08 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 80BD39BA4D; Wed, 17 Feb 2021 11:09:06 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=dartmouth.edu header.i=@dartmouth.edu header.b="yEg/xewk"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 362989BA4D; Wed, 17 Feb 2021 11:08:32 +1000 (AEST) Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) by minnie.tuhs.org (Postfix) with ESMTPS id DB80A9B968 for ; Wed, 17 Feb 2021 11:08:30 +1000 (AEST) Received: by mail-wm1-f41.google.com with SMTP id w4so399530wmi.4 for ; Tue, 16 Feb 2021 17:08:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dartmouth.edu; s=google1; h=mime-version:from:date:message-id:subject:to; bh=0aFZ+8nwI3A3QT5qNnXE9bDvhx6DAGIgY+IayRaSFm0=; b=yEg/xewk9tnFFje0UfA8YmohCdQZvTJRWKKlc4v9qvdj/2jr8Vdq6X0BSsDle7/FDh 3SGqPwhNo+pz93jEfKg4O3bX+0oEGVZ0JOgCIbWB/RBIUPpJshGPskCnJW4T/cULMysB mA1DwmPHmhJERcCIRVVjk4UfR2c2VPUWYPeEa2WRq6ivqkAfZZvWfZZusgsPmh/B2J/3 O8uP1WcmZF432tLID2T7I2qXyUHOPYfqrB12dQ1AM0M/S0Q/xfu+POkdI3z0n6VTIDm/ 3iWXYAruaAcoaxmvhblUzPYKyNm1EMRK1+6nsNyz+LzEfkrPuRNat3w3iPQg4cWKcJhs K1Tg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=0aFZ+8nwI3A3QT5qNnXE9bDvhx6DAGIgY+IayRaSFm0=; b=Jfzml7VR4fhhVlUNXoNf8a11opIlCesa9uvU0wUHxYuiJEDIxtmR3X6evFnCQp/R2L SHnVKdFUfmVGwWdxNLdpXM5KfDcViRVEzchOEh4l0pSl0yXiRBmpFLDmF9AmUmPceeLE M7I3XVLBHtZXkhdZuyFmQQndWwoHExs16hFc41z84fJZU+pSNtuhSmWkrlQwUeE/xP80 Agb2yQl9batiAFtvBPIijN2G6VUa1y2rxMY3yBImWR2c75p1UJ+qhxyy6DPkmxbUHH+M KNw8k5nRPtvoJQOazUup9Wf2qWSW1epjzQnK8hoJL+KzzeyDr9XhSnYYdW4vGjfDvwLu s08w== X-Gm-Message-State: AOAM533P5Rk8zWgeGcZIKccQ3YByeJDtCY/imfk0JMQY4qJAoGbccT18 TucTOUfGVxFzlJmsSntkuRHYhxk2ls3v1D7G6VAtB5hkriXedg== X-Google-Smtp-Source: ABdhPJxhjBTju321FRNpHqNgjEzNyYDsMq7RV7GoouE+YKBQ9qLFBE3ndPso2vZS4xA0MrpTWq71CrLR9j8yMsEO3v0= X-Received: by 2002:a05:600c:4857:: with SMTP id j23mr5152896wmo.66.1613524109095; Tue, 16 Feb 2021 17:08:29 -0800 (PST) MIME-Version: 1.0 From: M Douglas McIlroy Date: Tue, 16 Feb 2021 20:08:13 -0500 Message-ID: To: tuhs@minnie.tuhs.org Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] cut, paste, join, etc. X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Will Senn wrote, > join seems like part of an aborted (aka never fully realized) attempt at a text based rdb to me As the original author of join, I can attest that there was no thought of parlaying join into a database system. It was inspired by databases, but liberated from them, much as grep was liberated from an editor. Doug