Skip to main content
. 2023 May 22;11:e41808. doi: 10.2196/41808

Table 3.

Numbers related to the process of creating 3 reports of different complexities with the data warehouse.

Report and details Hospital A Hospital B Hospital C Hospital D
Report 1

Rows, n 4 4 4 4

Columns, n 2 2 2 2

Solr queries, n 8 8 8 8

Timea (ms), mean (SD) 79.5 (111.6) 185.3 (264.0) 90.3 (117.3) 95.3 (180.7)

Total time 645 ms 1 s 489 ms 728 ms 767 ms
Report 2

Rows, n 4 4 4 4

Columns, n 12 12 12 12

Solr queries, n 48 48 48 48

Timea (ms), mean (SD) 18.3 (7.7) 67.8 (23.3) 22.6 (12.4) 21.8 (13.7)

Total time 904 ms 3 s 275 ms 1 s 110 ms 1 s 69 ms
Report 3

Rows, n 48 804 396 2054

Columns, n 4 4 4 4

Solr queries, n 192 3216 1584 8216

Timea (ms), mean (SD) 11.6 (4.2) 25.1 (3.2) 9.1 (3.4) 9.8 (3.3)

Total time 2 s 315 ms 82 s 233 ms 15 s 201 ms 84 s 758 ms

aAverage time for the execution of each Solr query.