PostgreSQL 8.0.26 Documentation | ||||
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SPI_fnumber
returns the column
number for the column with the specified name.
If colname refers to a system column (e.g., oid) then the appropriate negative column number will be returned. The caller should be careful to test the return value for exact equality to SPI_ERROR_NOATTRIBUTE to detect an error; testing the result for less than or equal to 0 is not correct unless system columns should be rejected.