On Thu, Apr 29, 2021 at 02:52:23PM +0530, aditya desai wrote: > Hi, > One of the procs which accept tabletype as parameter gives below error > while being called from Application. Could not find a concrete solution for > this. Can someone help? > > call PROCEDURE ABC (p_optiontable optiontype) What is PROCEDURE ABC ? If you created it, send its definition with your problem report. > Below is the error while executing proc - How are you executing it? This seems like an error from npgsl, not postgres. It may be a client-side error, and it may be that the query isn't even being sent to the server at that point. > “the clr type system.data.datatable isn't natively supported by npgsql or > your postgresql. to use it with a postgresql composite you need to specify > datatypename or to map it, please refer to the documentation.” Did you do this ? https://www.npgsql.org/doc/types/enums_and_composites.html -- Justin