The structure SPITupleTable is defined thus:
typedef struct
{
MemoryContext tuptabcxt; /* memory context of result table */
uint32 alloced; /* number of alloced vals */
uint32 free; /* number of free vals */
TupleDesc tupdesc; /* row descriptor */
HeapTuple *vals; /* rows */
} SPITupleTable;
If the select query returns 10 rows (say),
how to access the result of each row separately?
Can you please help me with the syntax of the same?
Regards,
~Jas
On 9/1/06, Martijn van Oosterhout <kleptog@svana.org> wrote:On Fri, Sep 01, 2006 at 02:24:32AM -0400, Jasbinder Bali wrote:
> Hi,
>
> While using SPI_execute for a select statement, how do we store the result
> returned by select statement (say a C variable)?
> SPI_execute returns different values for success or failure only as per the
> postgres manual.
Did you read the whole page?
http://www.postgresql.org/docs/8.1/interactive/spi-spi-execute.html
Especially the bit where it says:
If the return value of the function is SPI_OK_SELECT then you may use
the global pointer SPITupleTable *SPI_tuptable to access the result
rows.
From there you can get the data. There's also the helper functions like
SPI_getvalue().
http://www.postgresql.org/docs/8.1/interactive/spi-interface-support.html
Hope this helps,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.
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