Property-based deletion of digital data

A computer-implemented data processing method comprising:

• creating and storing, at a first collaboration platform, a multi-column table in one or more digital data storage repositories of the first collaboration platform;
• receiving, from a plurality of different collaboration platforms, each of the plurality of different collaboration platforms associated with a different entity data object among multiple entity data objects, multiple sets of digital key-value pairs of properties of different entity data objects, a particular entity data object of the multiple entity data objects comprising at least one set of digital key-value pairs and an additional attribute, the at least one set of digital key-value pairs comprising at least a first property key-value pair and a second property key-value pair;
• for the particular entity data object, storing each of the first property key-value pair and the second property key-value pair in a single column of a first set of one or more columns of the multi-column table and storing the additional attribute in a second set of one or more columns of the multi-column table that is distinct from the first set of one or more columns;
• receiving, at the first collaboration platform and from at least one different collaboration platform of the plurality of different collaboration platforms, a delete command that specifies the first property key-value pair;
• and
• in response to the delete command, deleting the particular entity data object of the multiple entity data objects from the one or more digital data storage repositories of the first collaboration platform.

A computer system comprising:

• a first collaboration platform comprising:
• a networking interface that is communicatively coupled to a second collaboration platform;
• one or more digital data repositories;
• one or more non-transitory computer-readable storage media storing one or more sequences of instructions which when executed cause the first collaboration platform to:
• receive, at the first collaboration platform and from the second collaboration platform, a request to store a first entity data object, the first entity data object including a first property key-value pair, a second property key-value pair, and an additional attribute;
• create and store a multi-column table in the one or more digital data repositories;
• in response to the request, store each of the first property key-value pair and the second property key-value pair in a single column of a first set of one or more columns of the multi-column table in the one or more digital data repositories;
• in response to the request, store the additional attribute of the first entity data object in a second set of one or more columns that is distinct from the first set of one or more columns of the multi-column table in the one or more digital data repositories;
• receive, at the first collaboration platform and from the second collaboration platform, a delete command that specifies the first property key-value pair;
• and
• in response to the delete command that specifies the first property key-value pair, delete the first entity data object including the first property key-value pair, the second property key-value pair, and the additional attribute from the one or more digital data repositories of the first collaboration platform.