if that were me, I'd probably use the ORM to just copy the tables and rows I care about to a blank database, then use mysqldump on that database. dumping is hard, there's lots of formatting and escaping issues that you'd otherwise need to work out on your own.
On 01/12/2016 04:17 PM, Sam Raker wrote: > I want to dump a subsection of a database. I've found this > <http://docs.sqlalchemy.org/en/rel_1_0/faq/metadata_schema.html#how-can-i-get-the-create-table-drop-table-output-as-a-string> > in > the SQLA documentation to dump schemata, and found this SO answer > <http://stackoverflow.com/questions/135835/limiting-the-number-of-records-from-mysqldump> > to > indiscriminately dump the first n rows of one or more tables, but that > doesn't guarantee that all related objects will 'come along'--there's a > decent chance, for example, that relevant rows in many-to-many tables > won't get included. Is there a way to do something like (using > SQLAlchemy 1.0.9 with MySQL) > > | > my_objects =session.query(MyTable).filter(MyTable.created_at >>=some_date).all() > withopen('my_objects_dump.sql','w')asdump_file: > do_some_magic_with(my_objects,dump_file) > > ... > > > $ mysql my_database <my_objects_dump.sql > | > > and then have my_database contain my_objects AND their related objects? > I'm perfectly happy wrangling schemata and data separately. > > -- > You received this message because you are subscribed to the Google > Groups "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to sqlalchemy+unsubscr...@googlegroups.com > <mailto:sqlalchemy+unsubscr...@googlegroups.com>. > To post to this group, send email to sqlalchemy@googlegroups.com > <mailto:sqlalchemy@googlegroups.com>. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
