On Wed, Oct 8, 2014 at 12:49 AM, Vitaly Isaev <vis...@team112.ru> wrote: > I am trying to figure out how to dump the contents of several selected > tables from server in order to update the tables on development > workstations. The biggest challenge is that the tables I'm trying to > synchronize may be diverged (developers may add - but not delete - new > fields to the tables through the Django ORM, while schema of the production > database remains unchanged for a long time).
The COPY trick will probably help you. Note that I specify a column list in the last COPY statement. skonoplev@[local]:5432 ~=# create table t (i integer); CREATE TABLE skonoplev@[local]:5432 ~=# insert into t select * from generate_series(1, 5); INSERT 0 5 skonoplev@[local]:5432 ~=# copy t to '/tmp/t.dump'; COPY 5 skonoplev@[local]:5432 ~=# truncate t; TRUNCATE TABLE skonoplev@[local]:5432 ~=# alter table t add s text; ALTER TABLE skonoplev@[local]:5432 ~=# copy t(i) from '/tmp/t.dump'; COPY 5 skonoplev@[local]:5432 ~=# select * from t; i | s ---+--- 1 | 2 | 3 | 4 | 5 | (5 rows) -- Kind regards, Sergey Konoplev PostgreSQL Consultant and DBA http://www.linkedin.com/in/grayhemp +1 (415) 867-9984, +7 (499) 346-7196, +7 (988) 888-1979 gray...@gmail.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
