# \[BUG\] ? Perspective table data currentValue not equal to previousValue when data hasn't changed **URL:** \ **Category:** Ignition\ **Tags:** ignition81, perspective\ **Created:** [September 22, 2022, 2:03am UTC](https://forum.inductiveautomation.com/t/bug-perspective-table-data-currentvalue-not-equal-to-previousvalue-when-data-hasnt-changed/64356 "2022-09-22T02:03:24Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![richardNZ15](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/richardnz15/32/33373_2.png) [@richardNZ15](https://forum.inductiveautomation.com/u/richardNZ15)\ **Post date:** [September 22, 2022, 8:54pm UTC](https://forum.inductiveautomation.com/t/bug-perspective-table-data-currentvalue-not-equal-to-previousvalue-when-data-hasnt-changed/64356/5 "2022-09-22T20:54:46Z")
FYI the first "common" needs to be removed in the import: ```auto from com.inductiveautomation.ignition.common.util import DatasetTestUtils ``` But even then it is still not working sadly.. Seems like there are some issues with this method: > [@DatasetTestUtils.equals not working as expected](https://forum.inductiveautomation.com/t/datasettestutils-equals-not-working-as-expected/38073): > > Using Ignition 7.9.9. I would expect the following to print True, however it prints False. from com.inductiveautomation.ignition.common.util import DatasetBuilder, DatasetTestUtils from java.lang import String,Double from java.util import Date emptyDS1 = DatasetBuilder.newBuilder().colNames("col1", "col2", "col3").colTypes(Double, String, Date).build() emptyDS2 = DatasetBuilder.newBuilder().colNames("col1", "col2", "col3").colTypes(Double, String, Date).build() print(DatasetTestUtils.equals(emp… And i'm not really sure how that "method reflection" stuff works as mentioned in the thread. --- _[View the full topic](https://forum.inductiveautomation.com/t/bug-perspective-table-data-currentvalue-not-equal-to-previousvalue-when-data-hasnt-changed/64356)._