Mongo DB showing erroneous count
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1
I am trying to find count of entries in a mongo collection. I am using robomongo as the querying platform. These are my queries:
db.getCollection('non_time_reduced_price_points').count()
db.getCollection('non_time_reduced_price_points').find().count()
db.getCollection('non_time_reduced_price_points').find({vt: {'$exists': true}}).count()
The first 2 queries are giving 63967 as answer while last query is giving 63975.
How's it possible?
mongodb count robomongo
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
add a comment |
1
I am trying to find count of entries in a mongo collection. I am using robomongo as the querying platform. These are my queries:
db.getCollection('non_time_reduced_price_points').count()
db.getCollection('non_time_reduced_price_points').find().count()
db.getCollection('non_time_reduced_price_points').find({vt: {'$exists': true}}).count()
The first 2 queries are giving 63967 as answer while last query is giving 63975.
How's it possible?
mongodb count robomongo
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
How does it work with aggregation? E.g.db.non_time_reduced_price_points.aggregate([{ $facet: {total: [{$group: {_id: null, cnt: {$sum: 1}}}], vt: [{$match:{vt:{$exists: true}}}, {$group: {_id: null, cnt: {$sum: 1}}}]}}])
– Alex Blex
Nov 16 '18 at 10:52
@AlexBlex: It returned 63975.
– tusharmakkar08
Nov 20 '18 at 10:27
Then you did something wrong. It have to return 2 numbers.
– Alex Blex
Nov 20 '18 at 11:19
add a comment |
1
1
1
1
I am trying to find count of entries in a mongo collection. I am using robomongo as the querying platform. These are my queries:
db.getCollection('non_time_reduced_price_points').count()
db.getCollection('non_time_reduced_price_points').find().count()
db.getCollection('non_time_reduced_price_points').find({vt: {'$exists': true}}).count()
The first 2 queries are giving 63967 as answer while last query is giving 63975.
How's it possible?
mongodb count robomongo
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
I am trying to find count of entries in a mongo collection. I am using robomongo as the querying platform. These are my queries:
db.getCollection('non_time_reduced_price_points').count()
db.getCollection('non_time_reduced_price_points').find().count()
db.getCollection('non_time_reduced_price_points').find({vt: {'$exists': true}}).count()
The first 2 queries are giving 63967 as answer while last query is giving 63975.
How's it possible?
mongodb count robomongo
mongodb count robomongo
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
edited Nov 16 '18 at 10:24
Hamza Abdaoui
1,53321122
1,53321122
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
asked Nov 16 '18 at 10:20
tusharmakkar08tusharmakkar08
4871929
4871929
How does it work with aggregation? E.g.db.non_time_reduced_price_points.aggregate([{ $facet: {total: [{$group: {_id: null, cnt: {$sum: 1}}}], vt: [{$match:{vt:{$exists: true}}}, {$group: {_id: null, cnt: {$sum: 1}}}]}}])
– Alex Blex
Nov 16 '18 at 10:52
@AlexBlex: It returned 63975.
– tusharmakkar08
Nov 20 '18 at 10:27
Then you did something wrong. It have to return 2 numbers.
– Alex Blex
Nov 20 '18 at 11:19
add a comment |
How does it work with aggregation? E.g.db.non_time_reduced_price_points.aggregate([{ $facet: {total: [{$group: {_id: null, cnt: {$sum: 1}}}], vt: [{$match:{vt:{$exists: true}}}, {$group: {_id: null, cnt: {$sum: 1}}}]}}])
– Alex Blex
Nov 16 '18 at 10:52
@AlexBlex: It returned 63975.
– tusharmakkar08
Nov 20 '18 at 10:27
Then you did something wrong. It have to return 2 numbers.
– Alex Blex
Nov 20 '18 at 11:19
How does it work with aggregation? E.g.
db.non_time_reduced_price_points.aggregate([{ $facet: {total: [{$group: {_id: null, cnt: {$sum: 1}}}], vt: [{$match:{vt:{$exists: true}}}, {$group: {_id: null, cnt: {$sum: 1}}}]}}])– Alex Blex
Nov 16 '18 at 10:52
How does it work with aggregation? E.g.
db.non_time_reduced_price_points.aggregate([{ $facet: {total: [{$group: {_id: null, cnt: {$sum: 1}}}], vt: [{$match:{vt:{$exists: true}}}, {$group: {_id: null, cnt: {$sum: 1}}}]}}])– Alex Blex
Nov 16 '18 at 10:52
@AlexBlex: It returned 63975.
– tusharmakkar08
Nov 20 '18 at 10:27
@AlexBlex: It returned 63975.
– tusharmakkar08
Nov 20 '18 at 10:27
Then you did something wrong. It have to return 2 numbers.
– Alex Blex
Nov 20 '18 at 11:19
Then you did something wrong. It have to return 2 numbers.
– Alex Blex
Nov 20 '18 at 11:19
add a comment |
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How does it work with aggregation? E.g.
db.non_time_reduced_price_points.aggregate([{ $facet: {total: [{$group: {_id: null, cnt: {$sum: 1}}}], vt: [{$match:{vt:{$exists: true}}}, {$group: {_id: null, cnt: {$sum: 1}}}]}}])– Alex Blex
Nov 16 '18 at 10:52
@AlexBlex: It returned 63975.
– tusharmakkar08
Nov 20 '18 at 10:27
Then you did something wrong. It have to return 2 numbers.
– Alex Blex
Nov 20 '18 at 11:19