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From Jan Høydahl (JIRA) <>
Subject [jira] [Created] (SOLR-12749) timeseries() expression missing sum() results for empty buckets
Date Thu, 06 Sep 2018 08:40:00 GMT
Jan Høydahl created SOLR-12749:

             Summary: timeseries() expression missing sum() results for empty buckets
                 Key: SOLR-12749
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: streaming expressions
    Affects Versions: 7.4
            Reporter: Jan Høydahl
             Fix For: master (8.0), 7.5

See solr-user post []


We have a timeseries expression with gap="+1DAY" and a sum(imps_l) to aggregate sums of an
integer for each bucket. Now, some day buckets do not contain any documents at all, and instead
of returning a tuple with value 0, it returns a tuple with no entry at all for the sum, see
the bucket for date_dt 2018-06-22 below:
 "result-set": {
   "docs": [
       "sum(imps_l)": 0,
       "date_dt": "2018-06-21",
       "count(*)": 5
       "date_dt": "2018-06-22",
       "count(*)": 0
       "EOF": true,
       "RESPONSE_TIME": 3
Now when we want to convert this into a column using col(a,'sum(imps_l)') then that array
will get mostly numbers but also some string entries 'sum(imps_l)' which is the key name.
I need purely integers in the column.

Should the timeseries() have output values for all functions even if there are no documents
in the bucket? Or is there something similar to the select() expression that can take a stream
of tuples not originating directly from search() and replace values? Or is there perhaps
a function that can loop through the column produced by col() and replace non-numeric values
with 0?

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