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Paper: Federating Datasets with Spatial Joins
Volume: 314, Astronomical Data Analysis Software and Systems XIII
Page: 189
Authors: Page, C.G.
Abstract: Federating or combining astronomical datasets frequently leads to new discoveries, for example when cross-matching source catalogs. In database terms this requires a spatial join between tables. Two algorithms for spatial joins (pixel-code and R-tree join) were compared, and the performance of three DBMS (DB2, MySQL, and PostgreSQL) was evaluated using large source catalogs.
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