1SPI_FNUMBER(3)           PostgreSQL 14.3 Documentation          SPI_FNUMBER(3)
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NAME

6       SPI_fnumber - determine the column number for the specified column name
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SYNOPSIS

9       int SPI_fnumber(TupleDesc rowdesc, const char * colname)
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DESCRIPTION

12       SPI_fnumber returns the column number for the column with the specified
13       name.
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15       If colname refers to a system column (e.g., ctid) then the appropriate
16       negative column number will be returned. The caller should be careful
17       to test the return value for exact equality to SPI_ERROR_NOATTRIBUTE to
18       detect an error; testing the result for less than or equal to 0 is not
19       correct unless system columns should be rejected.
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ARGUMENTS

22       TupleDesc rowdesc
23           input row description
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25       const char * colname
26           column name
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RETURN VALUE

29       Column number (count starts at 1 for user-defined columns), or
30       SPI_ERROR_NOATTRIBUTE if the named column was not found.
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34PostgreSQL 14.3                      2022                       SPI_FNUMBER(3)
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