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Man Pages


Manual Reference Pages  -  PQREGISTERCOMPOSITES (3)

NAME

PQregisterComposites - Registers a composites.

CONTENTS

Synopsis
Deprecated
Description
Examples
     Using PQregisterComposites
Return Value
Examples
Author
Reporting Bugs
Copyright
See Also

SYNOPSIS

#include <libpqtypes.h>
int PQregisterComposites(PGconn *
conn, PGregisterType *types,
int count);

DEPRECATED

THIS FUNCTION IS DEPRECATED. New applications should use PQregisterTypes. This function is now a wrapper to PQregisterTypes.

DESCRIPTION

The PQregisterComposites() function allows an application to register one or more composites. This function can be called as many times as an application needs on a PGconn.

This function must execute a query against the backend to retrieve type information for each composite, thus this should not be called from within a transaction. It is recommended to register multiple composites at the same time to avoid round trip overhead.

The types argument is an array containing count composite types to register. Composites do not use the typput or typget members of the PGregisterType structure, thus these memebrs are ignored. If any composite does not exist, the register is aborted.

NOTE: The typname member of the PGregisterType structure can optionally contain the type’s schema: schema.typname.

WARNING: PQparamCreate is only aware of types that have already been registered. If you need to put a composite into a param, make sure it is first registered.

EXAMPLES

    Using PQregisterComposites

The example registers two composite types.

PGregisterType comp_types[] = {         {"myschema.simple", NULL, NULL},         {"complex", NULL, NULL} };

if (!PQregisterComposites(conn, comp_types, 2))         fprintf(stderr, "PQregisterComposites: %s\n", PQgeterror());

RETURN VALUE

On success, a non-zero value is returned. On error, zero is returned and PQgeterror(3) will contain an error message.

EXAMPLES

None.

AUTHOR

A contribution of eSilo, LLC. for the PostgreSQL Database Management System. Written by Andrew Chernow and Merlin Moncure.

REPORTING BUGS

Report bugs to <libpqtypes@esilo.com>.

COPYRIGHT

Copyright (c) 2011 eSilo, LLC. All rights reserved.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

pqt-handlers(3), PQputf(3), PQgetf(3)

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libpqtypes PQREGISTERCOMPOSITES (3) 2011

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