UPDATE schema1.A SET col = z.col FROM schema2.A z WHERE z.match = schema1.A.match This should always work. Observe schema1.A.match in the last line of the query. If this does not work please post the error message you are getting when you tried this. -Chandra Sekhar Surapaneni -----Original Message----- From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Mike G. Sent: Thursday, February 09, 2006 2:21 PM To: pgsql-general@xxxxxxxxxxxxxx Subject: [GENERAL] Update table with data from another table Hi, I was hoping to update the results of one table with data from another table. I have done this many times before using UPDATE X SET Z FROM Y. The catch this time is the tables involved both have the same column names, same table names but reside in different schemas. UPDATE schema1.A SET col = z.col FROM schema2.A z WHERE z.match = match; I can't get postgres to accept the above or any variation such as adding the full schema and table name to each column. I also can't seem to declare an alias for the destination table (UPDATE schema1.A w SET w.col = z.col). As a workaround I will rename one of the tables temporarily. If someone has been able to get this to work I would appreciate any tips to reference for next time. Mike ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend