Optionally specify the database type of columns in a seed, by providing a dictionary where the keys are the column names, and the values are a valid datatype (this varies across databases).
Without specifying this, dbt will infer the datatype based on the column values in your seed file.
Specify column types in your
seeds:jaffle_shop:country_codes:+column_types:country_code: varchar(2)country_name: varchar(32)
Or (as of v0.21):
version: 2seeds:- name: country_codesconfig:country_code: varchar(2)country_name: varchar(32)
If you have previously run
dbt seed, you'll need to run
dbt seed --full-refresh for the changes to take effect.
Note that you will need to use the fully directory path of a seed when configuring
column_types. For example, for a seed file at
data/marketing/utm_mappings.csv, you will need to configure it like so:
Use a varchar column type to preserve leading zeros in a zipcode
(Note: preservation of leading zeros works for v0.16.0 onwards)
seeds:jaffle_shop: # you must include the project namewarehouse_locations:+column_types:zipcode: varchar(5)
Use this configuration only when required, i.e. when the type inference is not working as expected. Otherwise you can omit this configuration.