Hola Jaime, busque acerca de crosstab y encontre la sgt pagina: http://www.postgresonline.com/journal/index.php?/archives/14-guid.html
<http://www.postgresonline.com/journal/index.php?/archives/14-guid.html>el paso que indica: path\to\postgresql\bin\psql -h localhost -U someuser -d somedb -f "path\to\postgresql\share\contrib\tablefunc.sql" en el postgresql 8.3 funciono perfecto, pero en el 8.2.4 me sale el sgt mensaje: *HINT: No function matches the given name and argument types. You may need to add explicit type casts.* *-- recursion detection* *INSERT INTO connectby_int VALUES(10,9);* *INSERT 0 1* *INSERT INTO connectby_int VALUES(11,10);* *INSERT 0 1* *INSERT INTO connectby_int VALUES(9,11);* *INSERT 0 1* *-- should fail due to infinite recursion* *SELECT * FROM connectby('connectby_int', 'keyid', 'parent_keyid', '2', 0, '~') AS t(keyid int, parent_keyid int, level int, branch text);* *psql:/usr/src/postgresql-8.2.4/contrib/tablefunc/sql/tablefunc.sql:178: ERROR: function connectby("unknown", "unknown", "unknown", "unknown", integer, "unknown") does not exist* *LINE 1: SELECT * FROM connectby('connectby_int', 'keyid', 'parent_ke...* * ^* *HINT: No function matches the given name and argument types. You may need to add explicit type casts.* *-- infinite recursion failure avoided by depth limit* *SELECT * FROM connectby('connectby_int', 'keyid', 'parent_keyid', '2', 4, '~') AS t(keyid int, parent_keyid int, level int, branch text);* *psql:/usr/src/postgresql-8.2.4/contrib/tablefunc/sql/tablefunc.sql:181: ERROR: function connectby("unknown", "unknown", "unknown", "unknown", integer, "unknown") does not exist* *LINE 1: SELECT * FROM connectby('connectby_int', 'keyid', 'parent_ke...* * ^* *HINT: No function matches the given name and argument types. You may need to add explicit type casts.* *-- test for falsely detected recursion* *DROP TABLE connectby_int;* *DROP TABLE* *CREATE TABLE connectby_int(keyid int, parent_keyid int);* *CREATE TABLE* *INSERT INTO connectby_int VALUES(11,NULL);* *INSERT 0 1* *INSERT INTO connectby_int VALUES(10,11);* *INSERT 0 1* *INSERT INTO connectby_int VALUES(111,11);* *INSERT 0 1* *INSERT INTO connectby_int VALUES(1,111);* *INSERT 0 1* *-- this should not fail due to recursion detection* *SELECT * FROM connectby('connectby_int', 'keyid', 'parent_keyid', '11', 0, '-') AS t(keyid int, parent_keyid int, level int, branch text);* *psql:/usr/src/postgresql-8.2.4/contrib/tablefunc/sql/tablefunc.sql:191: ERROR: function connectby("unknown", "unknown", "unknown", "unknown", integer, "unknown") does not exist* *LINE 1: SELECT * FROM connectby('connectby_int', 'keyid', 'parent_ke...* * ^* *HINT: No function matches the given name and argument types. You may need to add explicit type casts.* 2010/5/20 Jaime Casanova <ja...@2ndquadrant.com> > 2010/5/20 Dan <danstr...@gmail.com>: > > > > dias 19/05/2010 20/05/2010 > > ------------------------------------------------------------------- > > 1 | Juan Perez | 08:00-16:00 | 08:02-16:45 > > 2 | Luis Rodriguez | 08:05-16:30 | 08:05-18:00 > > 3 | Damian Diaz | 08:06-16:00 | 08:00-17:00 > > > > > > para hacerlo tal como esta en tu ejemplo necesitaras usar crosstab > > -- > Jaime Casanova www.2ndQuadrant.com > Soporte y capacitación de PostgreSQL > -- ----------------- [) /-\ |\|
