Re: Composite types as parameters

Elijah Stone <elronnd(at)elronnd(dot)net> writes:
> I want to execute a query like this:

> PQexecParams("insert into sometable values($1, ...);", paramValues[0] = serialize some record, ...)

> However this fails in coerce_record_to_complex(), because it receives a
> node of type Param, but it can only handle RowExpr and Var.

You probably would have better results from specifying the composite
type explicitly in the query:

PQexecParams("insert into sometable values($1::composite, ...);",

I gather from the complaint that you're currently doing something that
causes the Param to be typed as a generic "record", which is problematic
since the record's details are not available from anyplace. But if you
cast it directly to a named composite type, that should work.

If it still doesn't work, please provide a more concrete example.

regards, tom lane