DM-52781: Allow joining across catalogs that have non-exact spatial coverage#1010
Merged
iagaponenko merged 2 commits intomainfrom Mar 18, 2026
Merged
DM-52781: Allow joining across catalogs that have non-exact spatial coverage#1010iagaponenko merged 2 commits intomainfrom
iagaponenko merged 2 commits intomainfrom
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The new implementation extends a concept of the "dominant database" to a collection of the "dominant databases". If more than one such database is found in the user query then a scope of the query is restricted to an intersection of chunks present in all such databases. Other changes: - Improved error checking - Eliminated useless code - Refactoring the unit tests accordingly
Improvemens in the core query processing engine allows joining the dependent and director tables sitting in different databases, where the databases may have different spatial coverage. The dependent user tables is exactly this case.
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The new implementation extends a concept of the "dominant database" to a collection of the "dominant databases". If more than one such database is found in the user query then a scope of the query is restricted to an intersection of chunks present in all such databases.
Other changes: