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体验新版 GitCode,发现更多精彩内容 >>
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a9e9f593
编写于
8月 15, 1998
作者:
T
Thomas G. Lockhart
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Update for new information on PQsetNoticeProcessor().
Now back in sync with libpq.3 man page, which should be obsolete soon.
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doc/src/sgml/libpq.sgml
doc/src/sgml/libpq.sgml
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doc/src/sgml/libpq.sgml
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a9e9f593
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@@ -129,8 +129,8 @@ sets the default cost for indexed searches for the optimizer.
</Para>
<Para>
See the set(l)
man page
for information on the arguments for these environment variables.
Refer to the <command>SET</command> <acronym>SQL</acronym> command
for information on the arguments for these environment variables.
</Sect1>
...
...
@@ -1073,6 +1073,49 @@ void PQuntrace(PGconn *conn)
</Sect1>
<Sect1>
<Title>
<FileName>libpq</FileName> Control Functions</Title>
<Para>
<ItemizedList>
<ListItem>
<Para>
<Function>PQsetNoticeProcessor</Function>
Control reporting of notice and warning messages generated by libpq.
<ProgramListing>
void PQsetNoticeProcessor (PGconn * conn,
void (*noticeProcessor) (void * arg, const char * message),
void * arg)
</ProgramListing>
</Para>
</ListItem>
</ItemizedList>
</Para>
<Para>
By default, <filename>libpq</filename> prints "notice" messages from the backend on stderr,
as well as a few error messages that it generates by itself.
This behavior can be overridden by supplying a callback function that
does something else with the messages. The callback function is passed
the text of the error message (which includes a trailing newline), plus
a void pointer that is the same one passed to <function>PQsetNoticeProcessor</function>.
(This pointer can be used to access application-specific state if needed.)
The default notice processor is simply
<ProgramListing>
static void
defaultNoticeProcessor(void * arg, const char * message)
{
fprintf(stderr, "%s", message);
}
</ProgramListing>
<Para>
To use a special notice processor, call <function>PQsetNoticeProcessor</function> just after
any creation of a new PGconn object.
</Sect1>
<Sect1>
<Title>User Authentication Functions</Title>
...
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@@ -1124,7 +1167,7 @@ void fe_setauthsvc(char *name,
</Sect1>
<Sect1>
<Title>
BUGS
</Title>
<Title>
Caveats
</Title>
<Para>
The query buffer is 8192 bytes long, and queries over
...
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