On Tue, Sep 19, 2006 at 04:00:43PM -0400, Jack Orenstein wrote:
Can you provide some guidance (or point to some documentation) on how
to manage memory? Is the idea that I should (must?) not pfree
palloc'ed memory from Int64GetDatum, but I should free anything I
allocate myself using palloc? Or
On 9/20/06, Martijn van Oosterhout kleptog@svana.org wrote:
On Tue, Sep 19, 2006 at 04:00:43PM -0400, Jack Orenstein wrote:
Can you provide some guidance (or point to some documentation) on how
to manage memory? Is the idea that I should (must?) not pfree
palloc'ed memory from Int64GetDatum,
On Wed, Sep 20, 2006 at 11:02:46AM -0400, Jack Orenstein wrote:
http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mmgr/README?rev=1.9
Thank you, that is a useful document. So let me make sure I understand:
- My C function is invoked in a MessageContext (which you referred
On 9/18/06, Jack Orenstein [EMAIL PROTECTED] wrote:
-- Forwarded message --
From: Andrew - Supernews [EMAIL PROTECTED]
...
Jack I have an int8 that I need as a Datum for use with
Jack SPI_execute_plan.
Int64GetDatum(your_variable)
which then has to be pfree'd, correct?
On Tue, Sep 19, 2006 at 01:27:56PM -0400, Jack Orenstein wrote:
On 9/18/06, Jack Orenstein [EMAIL PROTECTED] wrote:
-- Forwarded message --
From: Andrew - Supernews [EMAIL PROTECTED]
...
Jack I have an int8 that I need as a Datum for use with
Jack SPI_execute_plan.
On 9/19/06, Martijn van Oosterhout kleptog@svana.org wrote:
On Tue, Sep 19, 2006 at 01:27:56PM -0400, Jack Orenstein wrote:
On 9/18/06, Jack Orenstein [EMAIL PROTECTED] wrote:
-- Forwarded message --
From: Andrew - Supernews [EMAIL PROTECTED]
...
Jack I have an int8 that I
Jack Orenstein [EMAIL PROTECTED] writes:
The C extension I'm writing, which uses the SPI, will be called
thousands or millions of times as part of a data conversion -- I do
have to worry about memory leaks.
Not if it's called in a short-lived context, which should ordinarily be
the case.
On 9/14/06, Andrew - Supernews [EMAIL PROTECTED] wrote:
On 2006-09-14, Jack Orenstein [EMAIL PROTECTED] wrote:
I don't think I explained myself clearly. I have a C string (char*,
terminating zero) and a byte array (char*, possibly containing zeros,
and I know the length). I want to obtain
On 2006-09-18, Jack Orenstein [EMAIL PROTECTED] wrote:
On 9/14/06, Andrew - Supernews [EMAIL PROTECTED] wrote:
One way:
Thank you, I hope you can help with some clarifications.
bytea *my_bytea = (bytea *) palloc(byte_array_len + VARHDRSZ);
memcpy(VARDATA(my_bytea), byte_array,
On 9/13/06, Martijn van Oosterhout kleptog@svana.org wrote:
On Tue, Sep 12, 2006 at 09:57:33PM -0400, Jack Orenstein wrote:
...
int, bigint: From looking at postgres.h, I realize that Datum is an
unsigned long. I'm guessing that I should just be able to assign Datums
carrying ints or
On 2006-09-14, Jack Orenstein [EMAIL PROTECTED] wrote:
I don't think I explained myself clearly. I have a C string (char*,
terminating zero) and a byte array (char*, possibly containing zeros,
and I know the length). I want to obtain Datums wrapping these values
that will be used to bind
I am trying to write a postgresql extension in C, which uses
SPI_prepare and SPI_execute_plan. What I want to do is to create a
prepared INSERT statement, bind some int, bigint, varchar and
bytea values, and then execute the INSERT.
I'm stuck on how to bind the values. The problem is that the
On Tue, Sep 12, 2006 at 09:57:33PM -0400, Jack Orenstein wrote:
I'm stuck on how to bind the values. The problem is that the values
being bound are not present as Datums. I don't get them as function
parameters, or from a table. I have data encoded, in a proprietary
format in one bytea column
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