John Platte replaid

## spec_helper.rb
...

def check_for_pollution
  tables_with_records = []
  all_tables = ActiveRecord::Base.connection.tables
  all_tables.each do |table_name|
    has_records = (ActiveRecord::Base.connection.select_value("select exists (select 1 from #{table_name} limit 1)") > 0)
    tables_with_records << table_name if has_records
  end
  expected_tables_with_records = ['schema_migrations']

## command to run
sh my-fancy-script.sh input.txt > log-file
	...

	def check_for_pollution
	tables_with_records = []
	all_tables = ActiveRecord::Base.connection.tables
	all_tables.each do \|table_name\|
	has_records = (ActiveRecord::Base.connection.select_value("select exists (select 1 from #{table_name} limit 1)") > 0)
	tables_with_records << table_name if has_records
	end
	expected_tables_with_records = ['schema_migrations']