On 2019-Jan-17, Tom Lane wrote: > DEPENDENCY_INTERNAL_AUTO, however, broke this completely, as the code > has no hesitation about making multiple entries of that kind. After > rather cursorily looking at that code, I'm leaning to the position > that DEPENDENCY_INTERNAL_AUTO is broken-by-design and needs to be > nuked from orbit. In the cases where it's being used, such as > partitioned indexes, I think that probably the right design is one > DEPENDENCY_INTERNAL dependency on the partition master index, and > then one DEPENDENCY_AUTO dependency on the matching partitioned table.
As I recall, the problem with that approach is that you can't drop the partition when a partitioned index exists, because it follows the link to the parent index and tries to drop that. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services