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COOL-cohort / COOL

the source code of the COOL system
https://www.comp.nus.edu.sg/~dbsystem/cool/
Apache License 2.0
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Invariant range filed lost min-max information in DataStore #113

Closed NLGithubWP closed 1 year ago

NLGithubWP commented 1 year ago

Previously, each range filed had a min and max value in the DataField. Now, since we merge the invariant fields with userID, we lost those information.

NLGithubWP commented 1 year ago

Fixed in pr(https://github.com/COOL-cohort/COOL/pull/114)

KimballCai commented 1 year ago

considering that data chunk skip may not save much time, we did not store summary information (e.g., min and max values in the invariant range field, and all existence ids in the invariant set field) in each data chunk.

KimballCai commented 1 year ago

We have added the min and max values in each data chunk for the invariant range field, but these adjustments are disabled temporally.