@raw_parsed = EXTRACT child_id int,
                hd_demo_sk string,
	hd_income_band_sk string,
	hd_buy_potential string,
	hd_dep_count string,
	hd_vehicle_count string,
	empty string
FROM "wasb://household-demographics@<blob storage account name>/{*}_{child_id}_100.dat"
USING Extractors.Text(delimiter: '|');

@filtered_results = SELECT hd_demo_sk,
	hd_income_band_sk,
	hd_buy_potential,
	hd_dep_count,
	hd_vehicle_count
FROM @raw_parsed
WHERE child_id BETWEEN 1 AND 100;

OUTPUT @filtered_results
TO "/large_multiple/household_demographics.csv"
USING Outputters.Csv(outputHeader: true);