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Document SPI_push() and SPI_pop().

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This commit is contained in:
Bruce Momjian 2004-03-17 01:05:10 +00:00
parent c1352052ef
commit d245b6bd9f
3 changed files with 69 additions and 5 deletions
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64
doc/src/sgml/spi.sgml
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@ -1,5 +1,5 @@
<!-- <!--
$PostgreSQL: pgsql/doc/src/sgml/spi.sgml,v 1.32 2004/03/05 01:00:45 momjian Exp $ $PostgreSQL: pgsql/doc/src/sgml/spi.sgml,v 1.33 2004/03/17 01:05:10 momjian Exp $
--> -->
<chapter id="spi"> <chapter id="spi">
@ -199,6 +199,68 @@ int SPI_finish(void)
<!-- *********************************************** --> <!-- *********************************************** -->
<refentry id="spi-spi-push">
<refmeta>
<refentrytitle>SPI_push</refentrytitle>
</refmeta>
<refnamediv>
<refname>SPI_push</refname>
<refpurpose>pushes SPI stack to allow recursive SPI calls</refpurpose>
</refnamediv>
<indexterm><primary>SPI_push</primary></indexterm>
<refsynopsisdiv>
<synopsis>
void SPI_push(void)
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<function>SPI_push</function> pushes a new environment on to the
SPI call stack, allowing recursive calls to use a new environment.
</para>
</refsect1>
</refentry>
<!-- *********************************************** -->
<refentry id="spi-spi-pop">
<refmeta>
<refentrytitle>SPI_pop</refentrytitle>
</refmeta>
<refnamediv>
<refname>SPI_pop</refname>
<refpurpose>pops SPI stack to allow recursive SPI calls</refpurpose>
</refnamediv>
<indexterm><primary>SPI_pop</primary></indexterm>
<refsynopsisdiv>
<synopsis>
void SPI_pop(void)
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<function>SPI_pop</function> pops the previous environment from the
SPI call stack. For use when returning from recursive SPI calls.
</para>
</refsect1>
</refentry>
<!-- *********************************************** -->
<refentry id="spi-spi-exec"> <refentry id="spi-spi-exec">
<refmeta> <refmeta>
<refentrytitle>SPI_exec</refentrytitle> <refentrytitle>SPI_exec</refentrytitle>

4
src/backend/executor/spi.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/spi.c,v 1.110 2004/03/05 00:47:01 momjian Exp $ * $PostgreSQL: pgsql/src/backend/executor/spi.c,v 1.111 2004/03/17 01:05:10 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -201,12 +201,14 @@ AtEOXact_SPI(bool isCommit)
SPI_tuptable = NULL; SPI_tuptable = NULL;
} }
/* Pushes SPI stack to allow recursive SPI calls */
void void
SPI_push(void) SPI_push(void)
{ {
_SPI_curid++; _SPI_curid++;
} }
/* Pops SPI stack to allow recursive SPI calls */
void void
SPI_pop(void) SPI_pop(void)
{ {

6
src/include/executor/spi.h
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@ -2,7 +2,7 @@
* *
* spi.h * spi.h
* *
* $PostgreSQL: pgsql/src/include/executor/spi.h,v 1.42 2004/03/05 00:47:01 momjian Exp $ * $PostgreSQL: pgsql/src/include/executor/spi.h,v 1.43 2004/03/17 01:05:10 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -81,8 +81,8 @@ extern int SPI_connect(void);
extern int SPI_finish(void); extern int SPI_finish(void);
extern void SPI_push(void); extern void SPI_push(void);
extern void SPI_pop(void); extern void SPI_pop(void);
extern int SPI_exec(const char *src, int tcount); extern int SPI_exec(const char *src, int tcount);
extern int SPI_execp(void *plan, Datum *values, const char *Nulls, extern int SPI_execp(void *plan, Datum *values, const char *Nulls,
int tcount); int tcount);
extern int SPI_execp_current(void *plan, Datum *values, const char *Nulls, extern int SPI_execp_current(void *plan, Datum *values, const char *Nulls,
bool useCurrentSnapshot, int tcount); bool useCurrentSnapshot, int tcount);