rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix ancient error in large objects usage example: overwrite() subroutine 

was opening with INV_READ flag and then writing.  Prior to 8.1 the backend
did not reject this, but now it does.
This commit is contained in:
Tom Lane 2006-03-02 21:49:09 +00:00
parent 9356877bba
commit 56aa84a69c
2 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
doc/src/sgml/lobj.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/lobj.sgml,v 1.37 2005/06/13 02:26:46 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/lobj.sgml,v 1.38 2006/03/02 21:49:09 tgl Exp $
-->
<chapter id="largeObjects">
@ -527,7 +527,7 @@ overwrite(PGconn *conn, Oid lobjId, int start, int len)
int nwritten;
int i;
lobj_fd = lo_open(conn, lobjId, INV_READ);
lobj_fd = lo_open(conn, lobjId, INV_WRITE);
if (lobj_fd &lt; 0)
{
fprintf(stderr, &quot;can't open large object %d\n&quot;,
@ -553,7 +553,8 @@ overwrite(PGconn *conn, Oid lobjId, int start, int len)
}
/*
* exportFile * export large object &quot;lobjOid&quot; to file &quot;out_filename&quot;
* exportFile
* export large object &quot;lobjOid&quot; to file &quot;out_filename&quot;
*
*/
void
@ -566,7 +567,7 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
int fd;
/*
* create an inversion &quot;object&quot;
* open the large object
*/
lobj_fd = lo_open(conn, lobjId, INV_READ);
if (lobj_fd &lt; 0)
@ -586,7 +587,7 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
}
/*
* read in from the Unix file and write to the inversion file
* read in from the inversion file and write to the Unix file
*/
while ((nbytes = lo_read(conn, lobj_fd, buf, BUFSIZE)) &gt; 0)
{

8
src/test/examples/testlo.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/test/examples/testlo.c,v 1.25 2004/12/31 22:03:58 pgsql Exp $
* $PostgreSQL: pgsql/src/test/examples/testlo.c,v 1.26 2006/03/02 21:49:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -113,7 +113,7 @@ overwrite(PGconn *conn, Oid lobjId, int start, int len)
int nwritten;
int i;
lobj_fd = lo_open(conn, lobjId, INV_READ);
lobj_fd = lo_open(conn, lobjId, INV_WRITE);
if (lobj_fd < 0)
fprintf(stderr, "can't open large object %u", lobjId);
@ -156,7 +156,7 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
int fd;
/*
* create an inversion "object"
* open the large object
*/
lobj_fd = lo_open(conn, lobjId, INV_READ);
if (lobj_fd < 0)
@ -173,7 +173,7 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
}
/*
* read in from the Unix file and write to the inversion file
* read in from the inversion file and write to the Unix file
*/
while ((nbytes = lo_read(conn, lobj_fd, buf, BUFSIZE)) > 0)
{