Forum Discussion
double loading when source = table
Table 1 load 300 XML file from folder and it take 10 minute. then I do some work on the data.
The source of table2 is table1 and now all the process take 20 minthe.
I see no reason why all the XML file loaded twice because I expect that table2 will take the data from the end of table1 and not from the beginning of table 1.
thanks
Please review the following similar thread about this behavior.
https://community.powerbi.com/t5/Desktop/How-to-Improve-Query-Reference-performance-for-large-tables/td-p/23901
Regards,
Lydia
Thanks for all the information. but i still feel that i have no good solution to my problem.
1. my question was on loading time and not run query time.
2. because i do lots of work on table 2 I cant use the solution of create calculated tables on the reporting.
3. I was expected that my tablet 2 will just take the data from the last step of table 1 and not start all the steps of table 1 from the beginning.4. becose table 2 depend on table 1 there is no reason why they run parallel. table 2 should start run only when table 1 finished her work.
shmulikvarsano,
Do you mean that the load time from Query Editor to Report View in Power BI Desktop? If so, this is by design. If not, please post a screenshot about your scenario.
Regards,
LydiaHi. Look at the file attached. as we can see the two table load parallel. so all the XML file loaded twice. this happen in the query editor and also in the power bi desktop.
The source of table 2 is table 1 to table 2 should behave similar to a view in SQL.Thanks.