Bug #2967
closedAdd a 'View data' menu to data source actors
0%
Description
Add a 'View data' menu to data source actors to show the content of data table(s)
-accommodates large data files, possibly shares code with Morpho
-possibly uses data manager library to select and project the data
Related issues
Updated by ben leinfelder over 16 years ago
The work done on bug #2966 has bled into this entry. They should probably just be consolidated into one bug. I've already implemented the file-based table model for viewing large tables (from Morpho).
Integrating the datamanager library into kepler might be nice to have as it's own bug entry (the plan was to use that more widely for concatenating and joining datasources in a workflow).
Updated by ben leinfelder about 16 years ago
The "Preview" action on the EMLDatasource handles the features requested in this bug.
Preview is available starting in 1.0.0RC1, with refinements already in place for the 1.0.0 release.
The behavior for Preview is such that the data is stored on disk so that large datasets don't hog memory.
Additionally, the QueryBuilder constraints are adhered to. This includes both the columns being selected and also the selection criteria specified. If/when the QueryBuilder join features are turned on, then the preview would also display the results of those joins.