On 22.03.2011 05:39, Vaibhav Kaushal wrote:
You said:

ExecMakeFunctionResultNoSets is used to evaluate function calls.

What are the 'functions' there? Are they the user supplied pl/PGSQL style
user functions, the functions handled by fmgr or are they just another C
function which make the Expression Evaluator?

Functions you can use in queries, written in PL/pgSQL or other PL languages. Including user-defined and built-in functions, and functions implementing operators.

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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