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I'm trying to create a dump file that only contains the data in my database. I would like it to create the data with the INSERT command. In reading the manual, ( i see that I can use either

  • --column-insert
  • --attribute-insert

It wasn't clear from the manual what the difference is. So I tried both and did a diff on the files. There are differences and I'm wondering why. Can someone tell me what the difference is between these two commands?

Here's the full command I'm running:

pg_dump -a --column-inserts -U postgres testdb > /tmp/test_data_as_inserts2.sql

and :

 pg_dump -a --attribute-inserts -U postgres testdb > /tmp/test_data_as_inserts.sql

Any tips would be appreciated. In the meantime, I'm going to dig in and see what's different between these two files... why certain records are included and others not.


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1 Answer 1

They are the same. Check the documentation (where they are mentioned together):

Dump data as INSERT commands with explicit column names (INSERT INTO table (column, ...) VALUES ...). This will make restoration very slow; it is mainly useful for making dumps that can be loaded into non-PostgreSQL databases. However, since this option generates a separate command for each row, an error in reloading a row causes only that row to be lost rather than the entire table contents.

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