Optimizing SQL query with a lot of entries in the table
0
I am trying to optimize SQL query that has embedded selects:
SELECT *
FROM orders o
LEFT JOIN alarms a ON o.id = a.order_id
INNER JOIN order_events o4_ ON o.id = o4_.order_id AND (o4_.event_type_id IN (6, 4, 5, 9))
LEFT JOIN event_types et ON o4_.event_type_id = et.id
WHERE o.arrival > '2018-01-01'
AND o.arrival <= '2018-12-31'
AND EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 4
)
AND NOT EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 5
)
The main problem that I have is that I want to exclude orders with order_events type 4, and to keep orders with order_events type 5.
Can someone suggest how to optimize this query?
My order_events is huge (650.000 lines).
mysql sql
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
add a comment |
0
I am trying to optimize SQL query that has embedded selects:
SELECT *
FROM orders o
LEFT JOIN alarms a ON o.id = a.order_id
INNER JOIN order_events o4_ ON o.id = o4_.order_id AND (o4_.event_type_id IN (6, 4, 5, 9))
LEFT JOIN event_types et ON o4_.event_type_id = et.id
WHERE o.arrival > '2018-01-01'
AND o.arrival <= '2018-12-31'
AND EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 4
)
AND NOT EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 5
)
The main problem that I have is that I want to exclude orders with order_events type 4, and to keep orders with order_events type 5.
Can someone suggest how to optimize this query?
My order_events is huge (650.000 lines).
mysql sql
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
see for reference stackoverflow.com/questions/45401307/optimizing-order-by
– user4321
Nov 15 '18 at 19:25
why don't you just remove 5 from the IN expression, like: o4_.event_type_id IN (6, 4, 9)
– Eray Balkanli
Nov 15 '18 at 19:38
@ErayBalkanli because it is important for me that it does not show orders that have event_type_id 5. If I remove that from the query it will show orders that has event_type_id 4,6 or 9, but it will not check if it has event_type_id 5.
– bla0009
Nov 15 '18 at 21:50
add a comment |
0
0
0
I am trying to optimize SQL query that has embedded selects:
SELECT *
FROM orders o
LEFT JOIN alarms a ON o.id = a.order_id
INNER JOIN order_events o4_ ON o.id = o4_.order_id AND (o4_.event_type_id IN (6, 4, 5, 9))
LEFT JOIN event_types et ON o4_.event_type_id = et.id
WHERE o.arrival > '2018-01-01'
AND o.arrival <= '2018-12-31'
AND EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 4
)
AND NOT EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 5
)
The main problem that I have is that I want to exclude orders with order_events type 4, and to keep orders with order_events type 5.
Can someone suggest how to optimize this query?
My order_events is huge (650.000 lines).
mysql sql
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
I am trying to optimize SQL query that has embedded selects:
SELECT *
FROM orders o
LEFT JOIN alarms a ON o.id = a.order_id
INNER JOIN order_events o4_ ON o.id = o4_.order_id AND (o4_.event_type_id IN (6, 4, 5, 9))
LEFT JOIN event_types et ON o4_.event_type_id = et.id
WHERE o.arrival > '2018-01-01'
AND o.arrival <= '2018-12-31'
AND EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 4
)
AND NOT EXISTS (SELECT 1
FROM order_events as o_e
WHERE o_e.order_id = o.id
AND o_e.event_type_id = 5
)
The main problem that I have is that I want to exclude orders with order_events type 4, and to keep orders with order_events type 5.
Can someone suggest how to optimize this query?
My order_events is huge (650.000 lines).
mysql sql
mysql sql
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
asked Nov 15 '18 at 19:08
bla0009bla0009
3,01893165
3,01893165
see for reference stackoverflow.com/questions/45401307/optimizing-order-by
– user4321
Nov 15 '18 at 19:25
why don't you just remove 5 from the IN expression, like: o4_.event_type_id IN (6, 4, 9)
– Eray Balkanli
Nov 15 '18 at 19:38
@ErayBalkanli because it is important for me that it does not show orders that have event_type_id 5. If I remove that from the query it will show orders that has event_type_id 4,6 or 9, but it will not check if it has event_type_id 5.
– bla0009
Nov 15 '18 at 21:50
add a comment |
see for reference stackoverflow.com/questions/45401307/optimizing-order-by
– user4321
Nov 15 '18 at 19:25
why don't you just remove 5 from the IN expression, like: o4_.event_type_id IN (6, 4, 9)
– Eray Balkanli
Nov 15 '18 at 19:38
@ErayBalkanli because it is important for me that it does not show orders that have event_type_id 5. If I remove that from the query it will show orders that has event_type_id 4,6 or 9, but it will not check if it has event_type_id 5.
– bla0009
Nov 15 '18 at 21:50
see for reference stackoverflow.com/questions/45401307/optimizing-order-by
– user4321
Nov 15 '18 at 19:25
see for reference stackoverflow.com/questions/45401307/optimizing-order-by
– user4321
Nov 15 '18 at 19:25
why don't you just remove 5 from the IN expression, like: o4_.event_type_id IN (6, 4, 9)
– Eray Balkanli
Nov 15 '18 at 19:38
why don't you just remove 5 from the IN expression, like: o4_.event_type_id IN (6, 4, 9)
– Eray Balkanli
Nov 15 '18 at 19:38
@ErayBalkanli because it is important for me that it does not show orders that have event_type_id 5. If I remove that from the query it will show orders that has event_type_id 4,6 or 9, but it will not check if it has event_type_id 5.
– bla0009
Nov 15 '18 at 21:50
@ErayBalkanli because it is important for me that it does not show orders that have event_type_id 5. If I remove that from the query it will show orders that has event_type_id 4,6 or 9, but it will not check if it has event_type_id 5.
– bla0009
Nov 15 '18 at 21:50
add a comment |
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see for reference stackoverflow.com/questions/45401307/optimizing-order-by
– user4321
Nov 15 '18 at 19:25
why don't you just remove 5 from the IN expression, like: o4_.event_type_id IN (6, 4, 9)
– Eray Balkanli
Nov 15 '18 at 19:38
@ErayBalkanli because it is important for me that it does not show orders that have event_type_id 5. If I remove that from the query it will show orders that has event_type_id 4,6 or 9, but it will not check if it has event_type_id 5.
– bla0009
Nov 15 '18 at 21:50