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help.h

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    • Andres Freund's avatar
      07c8651d
      Add new psql help topics, accessible to both --help and \?. · 07c8651d
      Andres Freund authored
      Add --help=<topic> for the commandline, and \? <topic> as a backslash
      command, to show more help than the invocations without parameters
      do. "commands", "variables" and "options" currently exist as help
      topics describing, respectively, backslash commands, psql variables,
      and commandline switches. Without parameters the help commands show
      their previous topic.
      
      Some further wordsmithing or extending of the added help content might
      be needed; but there seems little benefit delaying the overall feature
      further.
      
      Author: Pavel Stehule, editorialized by many
      
      Reviewed-By: Andres Freund, Petr Jelinek, Fujii Masao, MauMau, Abhijit
          Menon-Sen and Erik Rijkers.
      
      Discussion: CAFj8pRDVGuC-nXBfe2CK8vpyzd2Dsr9GVpbrATAnZO=2YQ0s2Q@mail.gmail.com,
          CAFj8pRA54AbTv2RXDTRxiAd8hy8wxmoVLqhJDRCwEnhdd7OUkw@mail.gmail.com
      07c8651d
      History
      Add new psql help topics, accessible to both --help and \?.
      Andres Freund authored
      Add --help=<topic> for the commandline, and \? <topic> as a backslash
      command, to show more help than the invocations without parameters
      do. "commands", "variables" and "options" currently exist as help
      topics describing, respectively, backslash commands, psql variables,
      and commandline switches. Without parameters the help commands show
      their previous topic.
      
      Some further wordsmithing or extending of the added help content might
      be needed; but there seems little benefit delaying the overall feature
      further.
      
      Author: Pavel Stehule, editorialized by many
      
      Reviewed-By: Andres Freund, Petr Jelinek, Fujii Masao, MauMau, Abhijit
          Menon-Sen and Erik Rijkers.
      
      Discussion: CAFj8pRDVGuC-nXBfe2CK8vpyzd2Dsr9GVpbrATAnZO=2YQ0s2Q@mail.gmail.com,
          CAFj8pRA54AbTv2RXDTRxiAd8hy8wxmoVLqhJDRCwEnhdd7OUkw@mail.gmail.com