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Remove remaining references to version-0 calling convention in docs.

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Support for version-0 calling convention was removed in PostgreSQL v10.
Change the SPI example to use version 1 convention, so that it actually
works.

Author: John Naylor
Discussion: https://www.postgresql.org/message-id/CAJVSVGVydmhLBdm80Rw3G8Oq5TnA7eCxUv065yoZfNfLbF1tzA@mail.gmail.com
This commit is contained in:
Heikki Linnakangas 2018-05-02 17:51:11 +03:00
parent 445e31bdc7
commit f66912b0a0
2 changed files with 9 additions and 14 deletions
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5
doc/src/sgml/plhandler.sgml
View File

@ -11,9 +11,8 @@
<para>
All calls to functions that are written in a language other than
the current <quote>version 1</quote> interface for compiled
languages (this includes functions in user-defined procedural languages,
functions written in SQL, and functions using the version 0 compiled
language interface) go through a <firstterm>call handler</firstterm>
languages (this includes functions in user-defined procedural languages
and functions written in SQL) go through a <firstterm>call handler</firstterm>
function for the specific language. It is the responsibility of
the call handler to execute the function in a meaningful way, such
as by interpreting the supplied source text. This chapter outlines

18
doc/src/sgml/spi.sgml
View File

@ -4583,17 +4583,19 @@ INSERT INTO a SELECT * FROM a;
PG_MODULE_MAGIC;
int64 execq(text *sql, int cnt);
PG_FUNCTION_INFO_V1(execq);
int64
execq(text *sql, int cnt)
Datum
execq(PG_FUNCTION_ARGS)
{
char *command;
int cnt;
int ret;
uint64 proc;
/* Convert given text object to a C string */
command = text_to_cstring(sql);
command = text_to_cstring(PG_GETARG_TEXT_PP(1));
cnt = PG_GETARG_INT32(2);
SPI_connect();
@ -4626,16 +4628,10 @@ execq(text *sql, int cnt)
SPI_finish();
pfree(command);
return proc;
PG_RETURN_INT64(proc);
}
</programlisting>
<para>
(This function uses call convention version 0, to make the example
easier to understand. In real applications you should use the new
version 1 interface.)
</para>
<para>
This is how you declare the function after having compiled it into
a shared library (details are in <xref linkend="dfunc"/>.):