package caqti

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  2. Docs
Abstraction over multiple database libraries

Install 

dune-project
 Dependency

github.com Readme Changelog Edit opam file Versions (21)

Authors

  1. P
    Petter A. Urkedal

Maintainers

  1. P
    paurkedal@gmail.com

Sources

caqti-0.9.0.tbz
sha256=4c84a16d983d0fed2786f536a3fa4d8fa113b8b30b4deea4a74772582d5489b2
md5=42a2e2d3b73d7fbaecc618549aad2865

doc/caqti.v1/Caqti1_sigs/module-type-TUPLE/index.html

Module type Caqti1_sigs.TUPLESource

Tuple decoding functions.

These functions extracts and decodes components from a returned tuple. The first argument is the index, starting from 0. The conversion performed are the inverse of the same named functions of PARAM, so the documentation is not repeated here.

Note! Calls to these functions are only valid during a callback from one of the query execution functions. Returning a partial call or embedding the call in a returned monad leads to undefined behaviour.

Sourcetype t

An abstract type for a tuple passed by a backend to callbacks during query execution.

Sourceval length : t -> int
Sourceval is_null : int -> t -> bool
Sourceval option : (int -> t -> 'a) -> int -> t -> 'a option
Sourceval bool : int -> t -> bool
Sourceval int : int -> t -> int
Sourceval int32 : int -> t -> int32
Sourceval int64 : int -> t -> int64
Sourceval float : int -> t -> float
Sourceval string : int -> t -> string
Sourceval bytes : int -> t -> bytes
Sourceval date_string : int -> t -> string
Sourceval date_tuple : int -> t -> int * int * int
Sourceval date_cl : int -> t -> CalendarLib.Date.t
Sourceval utc_float : int -> t -> float
Sourceval utc_string : int -> t -> string
Sourceval utc_cl : int -> t -> CalendarLib.Calendar.t