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This document uses PHP Chinese website manual Release
char * SPI_gettype(TupleDesc rowdesc, int colnumber)
SPI_gettype
returns a copy of the data type name of the
specified column. (You can use pfree
to
release the copy of the name when you don't need it anymore.)
input row description
column number (count starts at 1)
The data type name of the specified column, or NULL on error. SPI_result is set to SPI_ERROR_NOATTRIBUTE on error.