Learn more about the history of a dataset

The History tab provides a table with detailed information about the history of a particular data layer or table.

Finding the history tab

Select the data card for the chosen data.

Browse panel with a dataset card highlighted.

This will open the data sheet, where you can find the History tab.

Data sheet for NZ Street Address with the Info, History and Services and APIs tabs.

History tab of the NZ Street Address data sheet showing a table of published revisions.

Understanding the history tab

History table listing revisions with published date, feature count, and added, modified and deleted counts.

Depending on your chosen data, this table may include the following columns:

Published (UTC): The date and time, in UTC, when this version of the layer was published.

Features / Rows / Tiles: The number of features (for vector layers), rows (for table data) or tiles (raster, grid and point cloud layers) that the version contains.

Add: The number of new features in this version.

Mod.: The number of features modified in this version.

Del.: The number of features deleted in this version.

Revision Message: A short text field, which may contain additional information about the revision.

Primary Key: For versioned data, the attributes or columns that make up the primary key in this version.

EPSG SRID: The numeric EPSG SRID for the layer version. Note that this could be different from the source data projection.

Coordinate System: The common name of the version’s coordinate system.

Source Format: The format in which the data was imported.

Source Type: The original source for the data, such as Upload, WFS Server or ArcGIS Server.

Select Show data revisions only to hide versions that didn’t change the data (for example, versions that only changed the metadata).

Additional points on the history tab

When the data schema changes between versions, the table lists the changes, such as:

added and removed fields;
changed field types;
changes to primary key constraints;
changes to the geometry type; and
changes to the data projection (SRID).

Exporting versioned data

Versioned data is data with a primary key, which lets Koordinates identify changes to individual features. For information on exporting the changes between versions of versioned data, refer to Export versioned data using a changeset.