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Update libpq to store an error message in PGresult, per pgsq-interfaces discussion of 21-Sep.

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This commit is contained in:
Tom Lane
1998-10-01 01:40:26 +00:00
parent 502769d0de
commit 6428074e27
6 changed files with 205 additions and 79 deletions
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59
src/interfaces/libpq/libpq-fe.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: libpq-fe.h,v 1.43 1998/09/18 16:46:06 momjian Exp $
* $Id: libpq-fe.h,v 1.44 1998/10/01 01:40:23 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -67,6 +67,8 @@ extern "C"
/* PGnotify represents the occurrence of a NOTIFY message.
* Ideally this would be an opaque typedef, but it's so simple that it's
* unlikely to change.
* NOTE: in Postgres 6.4 and later, the be_pid is the notifying backend's,
* whereas in earlier versions it was always your own backend's PID.
*/
typedef struct pgNotify
{
@@ -78,7 +80,7 @@ extern "C"
/* PQnoticeProcessor is the function type for the notice-message callback.
*/
typedef void (*PQnoticeProcessor) (void * arg, const char * message);
typedef void (*PQnoticeProcessor) (void * arg, const char * message);
/* Print options for PQprint() */
@@ -219,15 +221,16 @@ typedef void (*PQnoticeProcessor) (void * arg, const char * message);
* use
*/
extern PGresult *PQfn(PGconn *conn,
int fnid,
int *result_buf,
int *result_len,
int result_is_int,
PQArgBlock *args,
int nargs);
int fnid,
int *result_buf,
int *result_len,
int result_is_int,
PQArgBlock *args,
int nargs);
/* Accessor functions for PGresult objects */
extern ExecStatusType PQresultStatus(PGresult *res);
extern const char *PQresultErrorMessage(PGresult *res);
extern int PQntuples(PGresult *res);
extern int PQnfields(PGresult *res);
extern int PQbinaryTuples(PGresult *res);
@@ -246,35 +249,39 @@ typedef void (*PQnoticeProcessor) (void * arg, const char * message);
/* Delete a PGresult */
extern void PQclear(PGresult *res);
/* Make an empty PGresult with given status (some apps find this useful) */
/* Make an empty PGresult with given status (some apps find this useful).
* If conn is not NULL and status indicates an error, the conn's
* errorMessage is copied.
*/
extern PGresult * PQmakeEmptyPGresult(PGconn *conn, ExecStatusType status);
/* === in fe-print.c === */
extern void PQprint(FILE *fout, /* output stream */
PGresult *res,
PQprintOpt *ps); /* option structure */
extern void PQprint(FILE *fout, /* output stream */
PGresult *res,
PQprintOpt *ps); /* option structure */
/*
* PQdisplayTuples() is a better version of PQprintTuples(), but both
* are obsoleted by PQprint().
*/
extern void PQdisplayTuples(PGresult *res,
FILE *fp, /* where to send the
* output */
int fillAlign, /* pad the fields with
* spaces */
const char *fieldSep, /* field separator */
int printHeader, /* display headers? */
int quiet);
FILE *fp, /* where to send the
* output */
int fillAlign, /* pad the fields with
* spaces */
const char *fieldSep, /* field separator */
int printHeader, /* display headers? */
int quiet);
extern void PQprintTuples(PGresult *res,
FILE *fout, /* output stream */
int printAttName, /* print attribute names
* or not */
int terseOutput, /* delimiter bars or
* not? */
int width); /* width of column, if
* 0, use variable width */
FILE *fout, /* output stream */
int printAttName, /* print attribute names
* or not */
int terseOutput, /* delimiter bars or
* not? */
int width); /* width of column, if
* 0, use variable width */
#ifdef MULTIBYTE
extern int PQmblen(unsigned char *s);