SPI_getvalue

SPI_getvalue
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SPI_getvalue

SPI_getvalue - return the string value of the specified column

Synopsis

char * SPI_getvalue(HeapTuple row, TupleDesc rowdesc, int colnumber)

Description

SPI_getvalue returns the string representation of the value of the specified column.

The result is returned in memory allocated using palloc . (You can use pfree to release the memory when you don't need it anymore.)

Arguments

HeapTuple row: input row to be examined
TupleDesc rowdesc: input row description
int colnumber: column number (count starts at 1)

Return Value

Column value, or NULL if the column is null, colnumber is out of range ( SPI_result is set to SPI_ERROR_NOATTRIBUTE ), or no output function is available ( SPI_result is set to SPI_ERROR_NOOUTFUNC ).

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