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Add amgettreeheight index AM API routine

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The only current implementation is for btree where it calls
_bt_getrootheight().  Other index types can now also use this to pass
information to their amcostestimate routine.  Previously, btree was
hardcoded and other index types could not hook into the optimizer at
this point.

Author: Mark Dilger <mark.dilger@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/E72EAA49-354D-4C2E-8EB9-255197F55330@enterprisedb.com
This commit is contained in:
Peter Eisentraut
2024-09-10 09:51:55 +02:00
parent f5050f795a
commit 56fead44dc
12 changed files with 48 additions and 7 deletions
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contrib/bloom/blutils.c
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@ -137,6 +137,7 @@ blhandler(PG_FUNCTION_ARGS)
amroutine->amvacuumcleanup = blvacuumcleanup;
amroutine->amcanreturn = NULL;
amroutine->amcostestimate = blcostestimate;
amroutine->amgettreeheight = NULL;
amroutine->amoptions = bloptions;
amroutine->amproperty = NULL;
amroutine->ambuildphasename = NULL;