Abstract
Multidimensional array data, including satellite images and weather simulations in the Earth Science, confocal microscopy and CAT scans in the Life Science, as well as telescope and cosmological observations in Space science, is traditionally the type of data seriously contributing to “Big Data”. Traditionally, the database community has neglected this, with the effect that ad hoc implementations prevail. With the advent of NewSQL in recent years, however, the database scope has broadened, and array modelling and query support is seriously considered. Hence, we address integration of array queries into SQL by proposing a generic model, ASQL, for modelling and querying multi-dimensional arrays in ISO SQL. The model integrates concepts from the three major array models seen today: rasdaman, SciQL, and SciDB. ASQL has been implemented and is currently being discussed in ISO for extending standard SQL.
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