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[icfp] move SQL/postgres alias to the end

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ben 2016-03-16 00:25:45 -04:00
parent a141456b52
commit ace737422c
1 changed files with 3 additions and 5 deletions
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8
icfp-2016/usage.scrbl
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@ -51,10 +51,6 @@ We use an infix @tt{:} to write explicit type annotations and casts,
for instance @racket[(x : Integer)].
These normally have two different syntaxes, respectively
@racket[(ann x Integer)] and @racket[(cast x Integer)].
} @item{
In @Secref{sec:sql}, @tt{sql} is short for @tt{postgresql}, i.e.
the code we present in that section is only implemented for the @tt{postgresql}
interface.
}
]
@ -366,7 +362,9 @@ We do, however, optimize vector references to unsafe primitives and
@; TODO connect to ew-haskell-2012 os-icfp-2008
Racket's @racket[db] library provides a string-based API for executing SQL
queries.
queries.@note{Technically, we use @tt{sql} as an abbreviation for @tt{postgresql}.
Although the Racket library supports many database systems, we have only implemented
a postgres front-end.}
After connecting to a database, SQL queries embedded in strings can be run
for effects and row values (represented as Racket vectors).
Queries may optionally contain @emph{query parameters}---natural numbers