Writing a language handler: pl_language_handler. Need to do a variety of data conversions. One of them is char* C-string to and from Text/Varchar. The include file postgres.h has the macro CStringGetDatum but this is of no use: it’s just a cast. There is a builtin macro CStringGetTextDatum which calls a function and looks like it might work. Questions: 1. Is this the right function? 2. Is it OK to use, or are there restrictions? 3. Does it have friends: are there other conversion functions like this for other data types (decimal, time in particular)? 4. Is there any particular documentation I can read? Regards David M Bennett FACS Andl - A New Database Language - andl.org |
