flask-admin list view is too slow for large table
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I have a table which has about 35,000,000 rows, It took more than 15 seconds to showing the list view of the table by using flask-admin, how can I speed it up?
flask flask-sqlalchemy flask-admin
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
add a comment |
0
I have a table which has about 35,000,000 rows, It took more than 15 seconds to showing the list view of the table by using flask-admin, how can I speed it up?
flask flask-sqlalchemy flask-admin
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
What's the database, model definition and view definition? Install Flask-DebugToolbar and analyze the query/queries(!) being executed.
– pjcunningham
Nov 25 '18 at 10:45
It's actually more depends on your database and table structure, more than on flask-admin. One of possible improvements, try to optimize count query.
– Zaytsev Dmitry
Nov 25 '18 at 10:45
I'm using postgresql, yes, the count query is too slow
– Jas6033
Dec 12 '18 at 10:36
add a comment |
0
0
0
I have a table which has about 35,000,000 rows, It took more than 15 seconds to showing the list view of the table by using flask-admin, how can I speed it up?
flask flask-sqlalchemy flask-admin
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
I have a table which has about 35,000,000 rows, It took more than 15 seconds to showing the list view of the table by using flask-admin, how can I speed it up?
flask flask-sqlalchemy flask-admin
flask flask-sqlalchemy flask-admin
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
edited Nov 24 '18 at 0:45
Jas6033
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
asked Nov 23 '18 at 14:55
Jas6033Jas6033
459
459
What's the database, model definition and view definition? Install Flask-DebugToolbar and analyze the query/queries(!) being executed.
– pjcunningham
Nov 25 '18 at 10:45
It's actually more depends on your database and table structure, more than on flask-admin. One of possible improvements, try to optimize count query.
– Zaytsev Dmitry
Nov 25 '18 at 10:45
I'm using postgresql, yes, the count query is too slow
– Jas6033
Dec 12 '18 at 10:36
add a comment |
What's the database, model definition and view definition? Install Flask-DebugToolbar and analyze the query/queries(!) being executed.
– pjcunningham
Nov 25 '18 at 10:45
It's actually more depends on your database and table structure, more than on flask-admin. One of possible improvements, try to optimize count query.
– Zaytsev Dmitry
Nov 25 '18 at 10:45
I'm using postgresql, yes, the count query is too slow
– Jas6033
Dec 12 '18 at 10:36
What's the database, model definition and view definition? Install Flask-DebugToolbar and analyze the query/queries(!) being executed.
– pjcunningham
Nov 25 '18 at 10:45
What's the database, model definition and view definition? Install Flask-DebugToolbar and analyze the query/queries(!) being executed.
– pjcunningham
Nov 25 '18 at 10:45
It's actually more depends on your database and table structure, more than on flask-admin. One of possible improvements, try to optimize count query.
– Zaytsev Dmitry
Nov 25 '18 at 10:45
It's actually more depends on your database and table structure, more than on flask-admin. One of possible improvements, try to optimize count query.
– Zaytsev Dmitry
Nov 25 '18 at 10:45
I'm using postgresql, yes, the count query is too slow
– Jas6033
Dec 12 '18 at 10:36
I'm using postgresql, yes, the count query is too slow
– Jas6033
Dec 12 '18 at 10:36
add a comment |
1 Answer
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If you're using postgresql you can override flask-admin count function using pg_class table which can return approximate count of table very fast
count = self.session.execute(
"""
SELECT reltuples::bigint AS count
FROM pg_class
WHERE oid = '{0}'::regclass
""".format(self.model.__table__.fullname)
).scalar()
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
0
If you're using postgresql you can override flask-admin count function using pg_class table which can return approximate count of table very fast
count = self.session.execute(
"""
SELECT reltuples::bigint AS count
FROM pg_class
WHERE oid = '{0}'::regclass
""".format(self.model.__table__.fullname)
).scalar()
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
add a comment |
0
If you're using postgresql you can override flask-admin count function using pg_class table which can return approximate count of table very fast
count = self.session.execute(
"""
SELECT reltuples::bigint AS count
FROM pg_class
WHERE oid = '{0}'::regclass
""".format(self.model.__table__.fullname)
).scalar()
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
add a comment |
0
0
0
If you're using postgresql you can override flask-admin count function using pg_class table which can return approximate count of table very fast
count = self.session.execute(
"""
SELECT reltuples::bigint AS count
FROM pg_class
WHERE oid = '{0}'::regclass
""".format(self.model.__table__.fullname)
).scalar()
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
If you're using postgresql you can override flask-admin count function using pg_class table which can return approximate count of table very fast
count = self.session.execute(
"""
SELECT reltuples::bigint AS count
FROM pg_class
WHERE oid = '{0}'::regclass
""".format(self.model.__table__.fullname)
).scalar()
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
answered Feb 5 at 11:28
Zaytsev DmitryZaytsev Dmitry
6502620
6502620
add a comment |
add a comment |
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What's the database, model definition and view definition? Install Flask-DebugToolbar and analyze the query/queries(!) being executed.
– pjcunningham
Nov 25 '18 at 10:45
It's actually more depends on your database and table structure, more than on flask-admin. One of possible improvements, try to optimize count query.
– Zaytsev Dmitry
Nov 25 '18 at 10:45
I'm using postgresql, yes, the count query is too slow
– Jas6033
Dec 12 '18 at 10:36