[Mobilitydb-users] Joint release 1.1 of MobilityDB, MEOS, and PyMEOS

[SCHOEMANS Maxime]

The MobilityDB team is proud to announce that the joint release 1.1 of MobilityDB, MEOS, and PyMEOS
https://github.com/MobilityDB/MobilityDB/releases/tag/v1.1.1
https://github.com/MobilityDB/PyMEOS/releases/tag/pymeos-cffi-1.1.0
is now available for download.
This includes release 1.1.0 as well as a micro release 1.1.1 mainly aimed at ARM64.

MobilityDB 1.1.0 Feature Highlights
-----------------------------------
MobilityDB 1.1 is a major revision with respect to the initial version 1.0. The most important change in version 1.1 was to extract the core functionality for temporal and spatiotemporal data management from MobilityDB into the Mobility Engine Open Source (MEOS) C library.
https://libmeos.org/
In this way, the same functionality provided by MobilityDB in a database environment is available in a C program to be used, for example, in a streaming environment.

The MEOS library for mobility management provides similar functionality as the Geometry Engine Open Source (GEOS) C/C++ library for computational geometry.

PyMEOS is a library built on top of MEOS that provides all of its functionality wrapped in a set of Python classes.
https://github.com/MobilityDB/PyMEOS

Several changes were necessary with respect to MobilityDB version 1.0 to enable the above. An important one was the definition of new data types span and spanset, which provide similar functionality to the PostgreSQL data types range and multirange but can also be used in various programming environments regardless of PostgreSQL. These are template types, which means that they are containers of other types, in a similar way as lists and arrays contains values of other types. Furthermore, a new template data type set was also added. Therefore, the types timestampset, period, and periodset in version 1.0 are replaced by the types tstzset, tstzspan, and tstzspanset in version 1.1.

MobilityDB 1.1 also includes several bugfixes and performance improvements compared to 1.0. Finally, the API of MEOS and MobilityDB was streamlined to improve usability and to facilitate the other bindings that are currently being developed.

For detailed information regarding the MobilityDB and MEOS 1.1 API refer to the pregenerated documentation at
https://mobilitydb.github.io/MobilityDB/

MobilityDB 1.1.1 Feature Highlights
-----------------------------------

This is mainly a bug fix release allowing MobilityDB and MEOS to run on ARM64 architecture. It also fixes compilation issues when using Postgres 12 and fixes bugs in ever/always spatial relationships.


Best regards,

The MobilityDB Team
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