Thread: Triggers when importing data
Hi,
I am trying to export and import sql file of a database. I would like to know whether it will execute all the triggers when importing the sql dump which is for Insert or Update or Delete.
Export:pg_dump -h test -U db_admin --format=plain --no-owner --no-acl production | sed -E 's/(DROP|CREATE|COMMENT ON) EXTENSION/-- \1 EXTENSION/g' > test.sql
Import: psql -h test -U db_admin -d production -W < test.sql
Sathish Kumar wrote: > I am trying to export and import sql file of a database. I would like to know > whether it will execute all the triggers when importing the sql dump which > is for Insert or Update or Delete. > > Export:pg_dump -h test -U db_admin --format=plain --no-owner --no-acl production | sed -E 's/(DROP|CREATE|COMMENT ON)EXTENSION/-- \1 EXTENSION/g' > test.sql > > Import: psql -h test -U db_admin -d production -W < test.sql That will call all triggers on tables that have no primary key or unique constraints. On all other tables, that will give you a constraint violation because the same rows are already in the table... What are you trying to achieve? Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com
On 11/28/18 9:43 PM, Sathish Kumar wrote: > Hi, > > I am trying to export and import sql file of a database. I would like to know whether it will execute all the triggerswhen importing the sql dump which is for Insert or Update or Delete. Well you command as constructed below will have no INSERTs(or UPDATES OR DELETES). The data will be moved into the tables using COPY. Even if you use --inserts(https://www.postgresql.org/docs/10/app-pgdump.html) that is all you will get. Can you explain more what it is you are trying to achieve or expect? > > Export:pg_dump -h test -U db_admin --format=plain --no-owner --no-acl production | sed -E 's/(DROP|CREATE|COMMENT ON)EXTENSION/-- \1 EXTENSION/g' > test.sql > > Import: psql -h test -U db_admin -d production -W < test.sql > -- Adrian Klaver adrian.klaver@aklaver.com