Changes between Version 6 and Version 7 of DevWikiPostGISCoding

Show
Ignore:
Timestamp:
12/09/10 13:43:55 (2 years ago)
Author:
pramsey
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • DevWikiPostGISCoding

    v6 v7  
    2424 
    2525Most of the PG_GETARG calls are pretty self explanatory. There's the PG_GETARG part, the part that declares the data type you are retrieving, and the argument number you are retrieving. So, PG_GETARG_INT32(0) gets the first argument as an integer. 
     26{{{ 
     27#!c 
     28 PG_FUNCTION_INFO_V1(multiply) 
     29 Datum multiply(PG_FUNCTION_ARGS) 
     30 { 
     31   int count = PG_GETARG_INT32(0); 
     32   double factor = PG_GETARG_DOUBLE(1); 
     33   PG_RETURN_DOUBLE(factor * count); 
     34} 
     35}}} 
    2636 
    2737