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create_upper_paths_hook

A hook called when post-processing of set operation paths occurs

create_upper_paths_hook is a hook which is called when post-processing of set operation paths occurs.

create_upper_paths_hook was added in PostgreSQL 9.6.

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PostgreSQL 9.6
- added (commit 5864d6a4)

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Unofficial documentation: create_upper_paths_hook

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