elasticsearch-dsl using from and size
I'm using python 2.7 with Elasticsearch-DSL package to query my elastic cluster.
Trying to add "from and limit" capabilities to the query in order to have pagination in my FE which presents the documents elastic returns but 'from' doesn't work right (i.e. I'm not using it correctly I spouse).
The relevant code is:
s = Search(using=elastic_conn, index='my_index').
filter("terms", organization_id=org_list)
hits = s[my_from:my_size].execute() # if from = 10, size = 10 then I get 0 documents, altought 100 documents match the filters.
My index contains 100 documents.
even when my filter match all results (i.e nothing is filtered out), if I use
my_from = 10 and my_size = 10, for instance, then I get nothing in hits (no matching documents)
Why is that? Am I misusing the from?
Documentation states:
from and size parameters. The from parameter defines the offset from the first result you want to fetch. The size parameter allows you to configure the maximum amount of hits to be returned.
So it seems really straightforward, what am I missing?
python-2.7 elasticsearch
edited Nov 28 '18 at 13:08
vmaldosan
118310
asked Nov 25 '18 at 8:21
NoamNoam
469520
add a comment |
I'm using python 2.7 with Elasticsearch-DSL package to query my elastic cluster.
Trying to add "from and limit" capabilities to the query in order to have pagination in my FE which presents the documents elastic returns but 'from' doesn't work right (i.e. I'm not using it correctly I spouse).
The relevant code is:
s = Search(using=elastic_conn, index='my_index').
filter("terms", organization_id=org_list)
hits = s[my_from:my_size].execute() # if from = 10, size = 10 then I get 0 documents, altought 100 documents match the filters.
My index contains 100 documents.
even when my filter match all results (i.e nothing is filtered out), if I use
my_from = 10 and my_size = 10, for instance, then I get nothing in hits (no matching documents)
Why is that? Am I misusing the from?
Documentation states:
from and size parameters. The from parameter defines the offset from the first result you want to fetch. The size parameter allows you to configure the maximum amount of hits to be returned.
So it seems really straightforward, what am I missing?
python-2.7 elasticsearch
edited Nov 28 '18 at 13:08
vmaldosan
118310
asked Nov 25 '18 at 8:21
NoamNoam
469520
Can you share the query generated by your code and the response json.
– Nishant Saini
Nov 25 '18 at 9:08
I think I understood what the problem was. It seems likefromrelates to results after applying thelimitfilter. Meaning if I ask forfrom = 10andsize = 10then it will first fetch 10 results and then do offset of 10 on this subset and therefore I eventually get 0 documents. So what I should do isfrom = 10andsize = 20and that will give me documents 10-20 which is what I wanted. Thx anyway.
– Noam
Nov 25 '18 at 9:30
This is how from/size works. Assume you have a query which matches 24 documents (0 to 23). Since by defaultfrom = 0andsize = 10elastic will return first 10 docs (i.e. 0 to 9). Now if you setfrom = 10for the same query andsize = 10, elastic will return doc 11th to 20th (i.e. 10 to 19). Again for the same query if you setfrom = 20andsize = 10, elastic will return remaining 4 records (20 to 23).
– Nishant Saini
Nov 25 '18 at 15:14
Well, that's not the behaviour I experience, Forfrom=10,size=10I get 0 docs. Perhaps it's an issue with Elasticsearch-DSL version (6.2.1). How can I further investigate this issue?
– Noam
Nov 25 '18 at 15:52
Execute the match all query{ "query": { "match_all": {} } }. Paste the response here. Then I might be able to help.
– Nishant Saini
Nov 25 '18 at 16:52
add a comment |
I'm using python 2.7 with Elasticsearch-DSL package to query my elastic cluster.
Trying to add "from and limit" capabilities to the query in order to have pagination in my FE which presents the documents elastic returns but 'from' doesn't work right (i.e. I'm not using it correctly I spouse).
The relevant code is:
s = Search(using=elastic_conn, index='my_index').
filter("terms", organization_id=org_list)
hits = s[my_from:my_size].execute() # if from = 10, size = 10 then I get 0 documents, altought 100 documents match the filters.
My index contains 100 documents.
even when my filter match all results (i.e nothing is filtered out), if I use
my_from = 10 and my_size = 10, for instance, then I get nothing in hits (no matching documents)
Why is that? Am I misusing the from?
Documentation states:
from and size parameters. The from parameter defines the offset from the first result you want to fetch. The size parameter allows you to configure the maximum amount of hits to be returned.
So it seems really straightforward, what am I missing?
python-2.7 elasticsearch
edited Nov 28 '18 at 13:08
vmaldosan
118310
asked Nov 25 '18 at 8:21
NoamNoam
469520
I'm using python 2.7 with Elasticsearch-DSL package to query my elastic cluster.
Trying to add "from and limit" capabilities to the query in order to have pagination in my FE which presents the documents elastic returns but 'from' doesn't work right (i.e. I'm not using it correctly I spouse).
The relevant code is:
s = Search(using=elastic_conn, index='my_index').
filter("terms", organization_id=org_list)
hits = s[my_from:my_size].execute() # if from = 10, size = 10 then I get 0 documents, altought 100 documents match the filters.
My index contains 100 documents.
even when my filter match all results (i.e nothing is filtered out), if I use
my_from = 10 and my_size = 10, for instance, then I get nothing in hits (no matching documents)
Why is that? Am I misusing the from?
Documentation states:
from and size parameters. The from parameter defines the offset from the first result you want to fetch. The size parameter allows you to configure the maximum amount of hits to be returned.
So it seems really straightforward, what am I missing?
python-2.7 elasticsearch
python-2.7 elasticsearch
edited Nov 28 '18 at 13:08
vmaldosan
118310
asked Nov 25 '18 at 8:21
NoamNoam
469520
edited Nov 28 '18 at 13:08
vmaldosan
118310
asked Nov 25 '18 at 8:21
NoamNoam
469520
edited Nov 28 '18 at 13:08
vmaldosan
118310
edited Nov 28 '18 at 13:08
vmaldosan
118310
edited Nov 28 '18 at 13:08
vmaldosan
118310
118310
asked Nov 25 '18 at 8:21
NoamNoam
469520
asked Nov 25 '18 at 8:21
NoamNoam
469520
asked Nov 25 '18 at 8:21
NoamNoam
469520
469520
Can you share the query generated by your code and the response json.
– Nishant Saini
Nov 25 '18 at 9:08
I think I understood what the problem was. It seems likefromrelates to results after applying thelimitfilter. Meaning if I ask forfrom = 10andsize = 10then it will first fetch 10 results and then do offset of 10 on this subset and therefore I eventually get 0 documents. So what I should do isfrom = 10andsize = 20and that will give me documents 10-20 which is what I wanted. Thx anyway.
– Noam
Nov 25 '18 at 9:30
This is how from/size works. Assume you have a query which matches 24 documents (0 to 23). Since by defaultfrom = 0andsize = 10elastic will return first 10 docs (i.e. 0 to 9). Now if you setfrom = 10for the same query andsize = 10, elastic will return doc 11th to 20th (i.e. 10 to 19). Again for the same query if you setfrom = 20andsize = 10, elastic will return remaining 4 records (20 to 23).
– Nishant Saini
Nov 25 '18 at 15:14
Well, that's not the behaviour I experience, Forfrom=10,size=10I get 0 docs. Perhaps it's an issue with Elasticsearch-DSL version (6.2.1). How can I further investigate this issue?
– Noam
Nov 25 '18 at 15:52
Execute the match all query{ "query": { "match_all": {} } }. Paste the response here. Then I might be able to help.
– Nishant Saini
Nov 25 '18 at 16:52
add a comment |
Can you share the query generated by your code and the response json.
– Nishant Saini
Nov 25 '18 at 9:08
I think I understood what the problem was. It seems likefromrelates to results after applying thelimitfilter. Meaning if I ask forfrom = 10andsize = 10then it will first fetch 10 results and then do offset of 10 on this subset and therefore I eventually get 0 documents. So what I should do isfrom = 10andsize = 20and that will give me documents 10-20 which is what I wanted. Thx anyway.
– Noam
Nov 25 '18 at 9:30
This is how from/size works. Assume you have a query which matches 24 documents (0 to 23). Since by defaultfrom = 0andsize = 10elastic will return first 10 docs (i.e. 0 to 9). Now if you setfrom = 10for the same query andsize = 10, elastic will return doc 11th to 20th (i.e. 10 to 19). Again for the same query if you setfrom = 20andsize = 10, elastic will return remaining 4 records (20 to 23).
– Nishant Saini
Nov 25 '18 at 15:14
Well, that's not the behaviour I experience, Forfrom=10,size=10I get 0 docs. Perhaps it's an issue with Elasticsearch-DSL version (6.2.1). How can I further investigate this issue?
– Noam
Nov 25 '18 at 15:52
Execute the match all query{ "query": { "match_all": {} } }. Paste the response here. Then I might be able to help.
– Nishant Saini
Nov 25 '18 at 16:52
Can you share the query generated by your code and the response json.
– Nishant Saini
Nov 25 '18 at 9:08
Can you share the query generated by your code and the response json.
– Nishant Saini
Nov 25 '18 at 9:08
I think I understood what the problem was. It seems like
from relates to results after applying the limit filter. Meaning if I ask for from = 10 and size = 10 then it will first fetch 10 results and then do offset of 10 on this subset and therefore I eventually get 0 documents. So what I should do is from = 10 and size = 20 and that will give me documents 10-20 which is what I wanted. Thx anyway.– Noam
Nov 25 '18 at 9:30
I think I understood what the problem was. It seems like
from relates to results after applying the limit filter. Meaning if I ask for from = 10 and size = 10 then it will first fetch 10 results and then do offset of 10 on this subset and therefore I eventually get 0 documents. So what I should do is from = 10 and size = 20 and that will give me documents 10-20 which is what I wanted. Thx anyway.– Noam
Nov 25 '18 at 9:30
This is how from/size works. Assume you have a query which matches 24 documents (0 to 23). Since by default
from = 0 and size = 10 elastic will return first 10 docs (i.e. 0 to 9). Now if you set from = 10 for the same query and size = 10, elastic will return doc 11th to 20th (i.e. 10 to 19). Again for the same query if you set from = 20 and size = 10, elastic will return remaining 4 records (20 to 23).– Nishant Saini
Nov 25 '18 at 15:14
This is how from/size works. Assume you have a query which matches 24 documents (0 to 23). Since by default
from = 0 and size = 10 elastic will return first 10 docs (i.e. 0 to 9). Now if you set from = 10 for the same query and size = 10, elastic will return doc 11th to 20th (i.e. 10 to 19). Again for the same query if you set from = 20 and size = 10, elastic will return remaining 4 records (20 to 23).– Nishant Saini
Nov 25 '18 at 15:14
Well, that's not the behaviour I experience, For
from=10, size=10 I get 0 docs. Perhaps it's an issue with Elasticsearch-DSL version (6.2.1). How can I further investigate this issue?– Noam
Nov 25 '18 at 15:52
Well, that's not the behaviour I experience, For
from=10, size=10 I get 0 docs. Perhaps it's an issue with Elasticsearch-DSL version (6.2.1). How can I further investigate this issue?– Noam
Nov 25 '18 at 15:52
Execute the match all query
{ "query": { "match_all": {} } }. Paste the response here. Then I might be able to help.– Nishant Saini
Nov 25 '18 at 16:52
Execute the match all query
{ "query": { "match_all": {} } }. Paste the response here. Then I might be able to help.– Nishant Saini
Nov 25 '18 at 16:52
add a comment |
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Can you share the query generated by your code and the response json.
– Nishant Saini
Nov 25 '18 at 9:08
I think I understood what the problem was. It seems like
fromrelates to results after applying thelimitfilter. Meaning if I ask forfrom = 10andsize = 10then it will first fetch 10 results and then do offset of 10 on this subset and therefore I eventually get 0 documents. So what I should do isfrom = 10andsize = 20and that will give me documents 10-20 which is what I wanted. Thx anyway.– Noam
Nov 25 '18 at 9:30
This is how from/size works. Assume you have a query which matches 24 documents (0 to 23). Since by default
from = 0andsize = 10elastic will return first 10 docs (i.e. 0 to 9). Now if you setfrom = 10for the same query andsize = 10, elastic will return doc 11th to 20th (i.e. 10 to 19). Again for the same query if you setfrom = 20andsize = 10, elastic will return remaining 4 records (20 to 23).– Nishant Saini
Nov 25 '18 at 15:14
Well, that's not the behaviour I experience, For
from=10,size=10I get 0 docs. Perhaps it's an issue with Elasticsearch-DSL version (6.2.1). How can I further investigate this issue?– Noam
Nov 25 '18 at 15:52
Execute the match all query
{ "query": { "match_all": {} } }. Paste the response here. Then I might be able to help.– Nishant Saini
Nov 25 '18 at 16:52