Re: [GENERAL] how to create dump of selected rows from a table
And to get the structure of a table, you can use pg_describe_object(catalog_id, object_id, object_sub_id) On Fri, Dec 18, 2015 at 10:16 AM, Adrian Klaver wrote: > On 12/17/2015 09:28 AM, anj patnaik wrote: > >> Currently, I am running pg_dump on an entire table of a database by doing: >> >> PGPASSWORD=$PGPASSWORDB /opt/data/PostgreSQL/9.4/bin/pg_dump -t >> RECORDER -Fc $i -U pguser -Z0 | xz -9 > >> "$backup_dir/$i-$timeslot-database" >> >> However, this table has a lot of rows. >> >> Is there a way I could do pg_dump on a subset of rows that match a >> criteria say via a sql statement? >> > > Yes it is called COPY:): > > http://www.postgresql.org/docs/9.4/interactive/sql-copy.html > > or its psql equivalent \copy: > > http://www.postgresql.org/docs/9.4/interactive/app-psql.html > > > >> Does anyone have any snippets on how to do that? >> >> Thank you >> > > > -- > Adrian Klaver > adrian.kla...@aklaver.com > > > -- > Sent via pgsql-general mailing list (pgsql-general@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general > -- *Melvin Davidson* I reserve the right to fantasize. Whether or not you wish to share my fantasy is entirely up to you.
Re: [GENERAL] how to create dump of selected rows from a table
On 12/17/2015 09:28 AM, anj patnaik wrote: Currently, I am running pg_dump on an entire table of a database by doing: PGPASSWORD=$PGPASSWORDB /opt/data/PostgreSQL/9.4/bin/pg_dump -t RECORDER -Fc $i -U pguser -Z0 | xz -9 > "$backup_dir/$i-$timeslot-database" However, this table has a lot of rows. Is there a way I could do pg_dump on a subset of rows that match a criteria say via a sql statement? Yes it is called COPY:): http://www.postgresql.org/docs/9.4/interactive/sql-copy.html or its psql equivalent \copy: http://www.postgresql.org/docs/9.4/interactive/app-psql.html Does anyone have any snippets on how to do that? Thank you -- Adrian Klaver adrian.kla...@aklaver.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
[GENERAL] how to create dump of selected rows from a table
Currently, I am running pg_dump on an entire table of a database by doing: PGPASSWORD=$PGPASSWORDB /opt/data/PostgreSQL/9.4/bin/pg_dump -t RECORDER -Fc $i -U pguser -Z0 | xz -9 > "$backup_dir/$i-$timeslot-database" However, this table has a lot of rows. Is there a way I could do pg_dump on a subset of rows that match a criteria say via a sql statement? Does anyone have any snippets on how to do that? Thank you