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322bab7974
This commit moves all the declarations related to locktags from lock.h to a new header called locktag.h. This header is useful so as code paths that care about locktags but not the lock hashtable can know about these without having to include lock.h and all its set of dependencies. This move includes the basic locktag structures and the set of macros to fill in the locktag fields before attempting to acquire a lock. Based on a suggestion from me, suggestion done while discussing a different feature. Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/abufUya2oK-_PJ3E@paquier.xyz