jdvkivu

#
# Check for every table with temporal columns if there are records that have dates set to '0000-00-00'

conn = ActiveRecord::Base.connection

# get a list of tables and columns with a date type excluding merge tables
query = "select concat(`table_schema`,'.',`table_name`) as table_name,`COLUMN_NAME` from information_schema.`columns` where data_type like '%date%' AND concat(`table_schema`,'.',`table_name`) not in (select concat(`table_schema`,'.',`table_name`) from information_schema.tables where engine='mrg_myisam');"
list = conn.select_all( query )

# transform the list a bit for later querying