On Tue, Aug 14, 2018 at 10:04 PM, 王翔宇 <wxy...@gmail.com> wrote: > Yes, I had read this document, BUT it's call from PL/PGSQL. I want call it > from c function.
You could look up the OID using e.g. LookupFuncWithArgs and then call it using one of the OidFunctionCall macros, but it might be a bit awkward. Perhaps it would be better to look at the C code inside that function and use some of that same logic directly from your C code. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
