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postgresql9.4-docs-9.4.24-1.mga6.noarch.rpm

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><P
>  The following conventions are used in the synopsis of a command:
  brackets (<TT
CLASS="LITERAL"
>[</TT
> and <TT
CLASS="LITERAL"
>]</TT
>) indicate
  optional parts.  (In the synopsis of a Tcl command, question marks
  (<TT
CLASS="LITERAL"
>?</TT
>) are used instead, as is usual in Tcl.)  Braces
  (<TT
CLASS="LITERAL"
>{</TT
> and <TT
CLASS="LITERAL"
>}</TT
>) and vertical lines
  (<TT
CLASS="LITERAL"
>|</TT
>) indicate that you must choose one
  alternative.  Dots (<TT
CLASS="LITERAL"
>...</TT
>) mean that the preceding element
  can be repeated.
 </P
><P
>  Where it enhances the clarity, SQL commands are preceded by the
  prompt <TT
CLASS="LITERAL"
>=&gt;</TT
>, and shell commands are preceded by the
  prompt <TT
CLASS="LITERAL"
>$</TT
>.  Normally, prompts are not shown, though.
 </P
><P
>  An <I
CLASS="FIRSTTERM"
>administrator</I
> is generally a person who is
  in charge of installing and running the server.  A <I
CLASS="FIRSTTERM"
>user</I
>
  could be anyone who is using, or wants to use, any part of the
  <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> system.  These terms should not
  be interpreted too narrowly; this book does not have fixed
  presumptions about system administration procedures.
 </P
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