data-storage/delta-lake/read-delta-lake-by-trino-matlab/main.m
conn = database('hm-trino', 'hadoop', '');
eventId = 'ad7953cd-6d49-4929-8180-99555bebc255';
fieldNames = {'current', 'voltage', 'temperature'};
columnNames = strjoin(fieldNames, ', ');
sqlQuery = [
'with ', ...
't0 as (select * from delta.production_hm_delta_db.motor_data_0 where _event_id = ''', eventId, '''), ', ...
't1 as (select * from delta.production_hm_delta_db.motor_data_1 where _event_id = ''', eventId, '''), ', ...
't2 as (select * from delta.production_hm_delta_db.motor_data_2 where _event_id = ''', eventId, '''), ', ...
't3 as (select * from delta.production_hm_delta_db.motor_data_3 where _event_id = ''', eventId, '''), ', ...
't4 as (select * from delta.production_hm_delta_db.motor_data_4 where _event_id = ''', eventId, '''), ', ...
't5 as (select * from delta.production_hm_delta_db.motor_data_5 where _event_id = ''', eventId, '''), ', ...
't6 as (select * from delta.production_hm_delta_db.motor_data_6 where _event_id = ''', eventId, '''), ', ...
't7 as (select * from delta.production_hm_delta_db.motor_data_7 where _event_id = ''', eventId, '''), ', ...
't8 as (select * from delta.production_hm_delta_db.motor_data_8 where _event_id = ''', eventId, '''), ', ...
't9 as (select * from delta.production_hm_delta_db.motor_data_9 where _event_id = ''', eventId, '''), ', ...
'ta as (select * from delta.production_hm_delta_db.motor_data_a where _event_id = ''', eventId, '''), ', ...
'tb as (select * from delta.production_hm_delta_db.motor_data_b where _event_id = ''', eventId, '''), ', ...
'tc as (select * from delta.production_hm_delta_db.motor_data_c where _event_id = ''', eventId, '''), ', ...
'td as (select * from delta.production_hm_delta_db.motor_data_d where _event_id = ''', eventId, '''), ', ...
'te as (select * from delta.production_hm_delta_db.motor_data_e where _event_id = ''', eventId, '''), ', ...
'tf as (select * from delta.production_hm_delta_db.motor_data_f where _event_id = ''', eventId, ''') ', ...
'select from_unixtime_nanos(t0._time) as _time, ', columnNames, ' ', ...
'from t0 ', ...
'join t1 on t0._time = t1._time ', ...
'join t2 on t0._time = t2._time ', ...
'join t3 on t0._time = t3._time ', ...
'join t4 on t0._time = t4._time ', ...
'join t5 on t0._time = t5._time ', ...
'join t6 on t0._time = t6._time ', ...
'join t7 on t0._time = t7._time ', ...
'join t8 on t0._time = t8._time ', ...
'join t9 on t0._time = t9._time ', ...
'join ta on t0._time = ta._time ', ...
'join tb on t0._time = tb._time ', ...
'join tc on t0._time = tc._time ', ...
'join td on t0._time = td._time ', ...
'join te on t0._time = te._time ', ...
'join tf on t0._time = tf._time ', ...
'order by _time asc'
];
data = fetch(conn, sqlQuery);
close(conn);
clear columnNames;
clear conn;
clear fieldNames;
clear sqlQuery;