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Revise handling of index-type-specific indexscan cost estimation, per

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pghackers discussion of 5-Jan-2000.  The amopselect and amopnpages
estimators are gone, and in their place is a per-AM amcostestimate
procedure (linked to from pg_am, not pg_amop).
This commit is contained in:
Tom Lane
2000-01-22 23:50:30 +00:00
parent 78845177bb
commit 71ed7eb494
30 changed files with 502 additions and 1113 deletions
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35
src/test/regress/sql/opr_sanity.sql
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@@ -23,6 +23,8 @@
-- **************** pg_proc ****************
-- Look for illegal values in pg_proc fields.
-- NOTE: currently there are a few pg_proc entries that have prorettype = 0.
-- Someday that ought to be cleaned up.
SELECT p1.oid, p1.proname
FROM pg_proc as p1
@@ -30,6 +32,7 @@ WHERE (p1.prolang = 0 OR p1.prorettype = 0 OR
p1.pronargs < 0 OR p1.pronargs > 9)
AND p1.proname !~ '^pl[^_]+_call_handler$'
AND p1.proname !~ '^RI_FKey_'
AND p1.proname !~ 'costestimate$'
AND p1.proname != 'update_pg_pwd';
-- Look for conflicting proc definitions (same names and input datatypes).
@@ -416,7 +419,7 @@ WHERE p1.aggfinalfn = p2.oid AND
SELECT p1.oid
FROM pg_amop as p1
WHERE p1.amopid = 0 OR p1.amopclaid = 0 OR p1.amopopr = 0 OR
p1.amopstrategy <= 0 OR p1.amopselect = 0 OR p1.amopnpages = 0;
p1.amopstrategy <= 0;
-- Look for duplicate pg_amop entries
@@ -459,36 +462,6 @@ WHERE p1.amopopr = p2.oid AND p1.amopclaid = p3.oid AND
p3.opcdeftype != 0 AND
(p3.opcdeftype != p2.oprleft OR p3.opcdeftype != p2.oprright);
-- Check that amopselect points to a proc with the right signature
-- to be an access-method selectivity estimator.
-- The proc signature we want is:
-- float8 proc(oid, oid, int2, <any>, int4, int4, oid)
SELECT p1.oid, p2.oid, p2.proname
FROM pg_amop AS p1, pg_proc AS p2
WHERE p1.amopselect = p2.oid AND
(p2.prorettype != 701 OR p2.proretset OR
p2.pronargs != 7 OR
p2.proargtypes[0] != 26 OR p2.proargtypes[1] != 26 OR
p2.proargtypes[2] != 21 OR p2.proargtypes[3] != 0 OR
p2.proargtypes[4] != 23 OR p2.proargtypes[5] != 23 OR
p2.proargtypes[6] != 26);
-- Check that amopnpages points to a proc with the right signature
-- to be an access-method page-count estimator.
-- The proc signature we want is:
-- float8 proc(oid, oid, int2, <any>, int4, int4, oid)
SELECT p1.oid, p2.oid, p2.proname
FROM pg_amop AS p1, pg_proc AS p2
WHERE p1.amopnpages = p2.oid AND
(p2.prorettype != 701 OR p2.proretset OR
p2.pronargs != 7 OR
p2.proargtypes[0] != 26 OR p2.proargtypes[1] != 26 OR
p2.proargtypes[2] != 21 OR p2.proargtypes[3] != 0 OR
p2.proargtypes[4] != 23 OR p2.proargtypes[5] != 23 OR
p2.proargtypes[6] != 26);
-- **************** pg_amproc ****************
-- Look for illegal values in pg_amproc fields