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Man Pages


Manual Reference Pages  -  PQSETERROR (3)

NAME

PQgeterror, PQseterror, PQgetErrorField - libpqtypes error system management functions

CONTENTS

Synopsis
Description
Return Value
Examples
Author
Reporting Bugs
Copyright
See Also

SYNOPSIS

#include <libpqtypes.h>

char *PQgeterror(void);
void PQseterror(const char *
format, ...);
char *PQgetErrorField(int fieldcode);

DESCRIPTION

The libpqtypes library maintains a per-thread global error message. The error message is managed by PQgeterror() and PQseterror().

PQseterror() takes a regular printf compatible format string for setting the libpqtypes error message.

PQgetErrorField() gets an error field from the last executed query. The error field is only set by PQparamExec and PQparamExecPrepared. When using libpq functions that return results, like PQexec, continue to use PQresultErrorField.

To clear the libpqtypes error message, call PQseterror() with a NULL format string: PQseterror(NULL); This will also clear error fields.

RETURN VALUE

PQgeterror() returns the last error message for the calling thread. It will never return NULL.

PQgetErrorField() returns the error field, referenced by fieldcode, for the last executed query. NULL is returned if no value exists.

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-specs(3)

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libpqtypes PQGETERROR (3) 2011

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