Re: plpgsql: return multiple result sets

Jeff,

Sorry for the delay response. We have problems with our mail server and my
first mail didn't get to the list.

Thank you for the idea about cursor unfortunately it's not a right solution in
my situation.

I think I didn't explain properly what my problem is.
It's obvious that Eng is not my native language:)

I need to write a plpgsql function which returns information selected from the
50 tables (in the following example: title, descriptions and locations) to
the other application. By the way, data has a tree structure.

I have an idea to use function to build a temp table.
Is it feasible to return temporary table as a plpgsql function result ?


For example, 3 tables:
CREATE TABLE "lom" (
   "id" int4 DEFAULT nextval('"lom_id_seq"'::text) NOT NULL,
   "title" varchar(1000));

CREATE TABLE "description" (
   "id" int4 DEFAULT nextval('"description_id_seq"'::text) NOT NULL,
   "lom_id" int4,
   "description" varchar(2000));

CREATE TABLE "location" (
   "id" int4 DEFAULT nextval('"location_id_seq"'::text) NOT NULL,
   "lom_id" int4,
   "uri" varchar(1000));

With the following information:

INSERT INTO "lom" ("id", "title") VALUES(948, 'title');

INSERT INTO "description" ("id", "lom_id", "description") VALUES(564, 948,
'description1');
INSERT INTO "description" ("id", "lom_id", "description") VALUES(565, 948,
'description2');

INSERT INTO "location" ("id", "lom_id", "uri") VALUES(1258, 948,
'http://yahoo.ca - location1');
INSERT INTO "location" ("id", "lom_id", "uri") VALUES(1259, 948,
'http://google.ca - location2');



Oksana