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I noticed that pltcl didn't have any way to get to SPI_lastoid like plpgsql does.. I started using pltcl a lot because I like to decide when and how my queries get planned.. so I put one together really quick

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Sorry I don't have the original around to make a quick diff, but its a very small change... I think this should be in the next release, there's no reason not to have it.

its a function with no expected arguments, so you can use it like:
spi_exec "INSERT INTO mytable(columns...) VALUES(values..)"
set oid [spi_lastoid]
spi_exec "SELECT mytable_id from mytable WHERE oid=$oid"

It just didn't make sense for me to use plpgsql and pltcl, or just screw
them both and use SPI from C.


bob@redivi.com
This commit is contained in:
Bruce Momjian 2001-08-02 15:45:55 +00:00
parent d00b272299
commit 84d2c518fe
2 changed files with 34 additions and 3 deletions
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14
doc/src/sgml/pltcl.sgml
View File

@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/pltcl.sgml,v 2.11 2001/06/09 02:19:07 tgl Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/pltcl.sgml,v 2.12 2001/08/02 15:45:55 momjian Exp $
--> -->
<chapter id="pltcl"> <chapter id="pltcl">
@ -394,6 +394,18 @@ CREATE TRIGGER trig_mytab_modcount BEFORE INSERT OR UPDATE ON mytab
</listitem> </listitem>
</varlistentry> </varlistentry>
<varlistentry>
<indexterm>
<primary>spi_lastoid</primary>
</indexterm>
<term>spi_lastoid</term>
<listitem>
<para>
Returns the OID of the last query if it was an INSERT.
</para>
</listitem>
</varlistentry>
<varlistentry> <varlistentry>
<term>spi_exec ?-count <replaceable>n</replaceable>? ?-array <replaceable>name</replaceable>? <replaceable>query</replaceable> ?<replaceable>loop-body</replaceable>?</term> <term>spi_exec ?-count <replaceable>n</replaceable>? ?-array <replaceable>name</replaceable>? <replaceable>query</replaceable> ?<replaceable>loop-body</replaceable>?</term>
<listitem> <listitem>

21
src/pl/tcl/pltcl.c
View File

@ -31,7 +31,7 @@
* ENHANCEMENTS, OR MODIFICATIONS. * ENHANCEMENTS, OR MODIFICATIONS.
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/pl/tcl/pltcl.c,v 1.37 2001/06/09 02:19:07 tgl Exp $ * $Header: /cvsroot/pgsql/src/pl/tcl/pltcl.c,v 1.38 2001/08/02 15:45:55 momjian Exp $
* *
**********************************************************************/ **********************************************************************/
@ -144,6 +144,8 @@ static void pltcl_set_tuple_values(Tcl_Interp *interp, char *arrayname,
int tupno, HeapTuple tuple, TupleDesc tupdesc); int tupno, HeapTuple tuple, TupleDesc tupdesc);
static void pltcl_build_tuple_argument(HeapTuple tuple, TupleDesc tupdesc, static void pltcl_build_tuple_argument(HeapTuple tuple, TupleDesc tupdesc,
Tcl_DString *retval); Tcl_DString *retval);
static int pltcl_SPI_lastoid(ClientData cdata, Tcl_Interp *interp,
int argc, char *argv[]);
/* /*
* This routine is a crock, and so is everyplace that calls it. The problem * This routine is a crock, and so is everyplace that calls it. The problem
@ -251,6 +253,8 @@ pltcl_init_interp(Tcl_Interp *interp)
pltcl_SPI_prepare, NULL, NULL); pltcl_SPI_prepare, NULL, NULL);
Tcl_CreateCommand(interp, "spi_execp", Tcl_CreateCommand(interp, "spi_execp",
pltcl_SPI_execp, NULL, NULL); pltcl_SPI_execp, NULL, NULL);
Tcl_CreateCommand(interp, "spi_lastoid",
pltcl_SPI_lastoid, NULL, NULL);
#ifdef ENABLE_PLTCL_UNKNOWN #ifdef ENABLE_PLTCL_UNKNOWN
/************************************************************ /************************************************************
@ -2275,6 +2279,21 @@ pltcl_SPI_execp(ClientData cdata, Tcl_Interp *interp,
} }
/**********************************************************************
* pltcl_SPI_lastoid() - return the last oid. To
* be used after insert queries
**********************************************************************/
static int
pltcl_SPI_lastoid(ClientData cdata, Tcl_Interp *interp,
int argc, char *argv[])
{
char buf[64];
sprintf(buf,"%u",SPI_lastoid);
Tcl_SetResult(interp, buf, TCL_VOLATILE);
return TCL_OK;
}
/********************************************************************** /**********************************************************************
* pltcl_set_tuple_values() - Set variables for all attributes * pltcl_set_tuple_values() - Set variables for all attributes
* of a given tuple * of a given tuple