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Use -1 for no limit for ivfflat.max_probes [skip ci]

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This commit is contained in:
Andrew Kane
2024-10-11 11:43:32 -07:00
parent 42af8aa1d1
commit d1ebb8db73
5 changed files with 54 additions and 14 deletions
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31
test/expected/ivfflat_vector.out
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@@ -95,7 +95,30 @@ SELECT * FROM t ORDER BY val <-> '[3,3,3]';
[0,0,0]
(3 rows)
SET ivfflat.max_probes = 0;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
val
---------
[1,2,3]
(1 row)
SET ivfflat.max_probes = 1;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
val
---------
[1,2,3]
(1 row)
SET ivfflat.max_probes = 2;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
val
---------
[1,2,3]
[1,1,1]
(2 rows)
RESET ivfflat.iterative_search;
RESET ivfflat.max_probes;
DROP TABLE t;
-- unlogged
CREATE UNLOGGED TABLE t (val vector(3));
@@ -140,11 +163,11 @@ HINT: Available values: off, relaxed_order.
SHOW ivfflat.max_probes;
ivfflat.max_probes
--------------------
0
-1
(1 row)
SET ivfflat.max_probes = -1;
ERROR: -1 is outside the valid range for parameter "ivfflat.max_probes" (0 .. 32768)
SET ivfflat.max_probes = -2;
ERROR: -2 is outside the valid range for parameter "ivfflat.max_probes" (-1 .. 32768)
SET ivfflat.max_probes = 32769;
ERROR: 32769 is outside the valid range for parameter "ivfflat.max_probes" (0 .. 32768)
ERROR: 32769 is outside the valid range for parameter "ivfflat.max_probes" (-1 .. 32768)
DROP TABLE t;

12
test/sql/ivfflat_vector.sql
View File

@@ -53,7 +53,17 @@ CREATE INDEX ON t USING ivfflat (val vector_l2_ops) WITH (lists = 3);
SET ivfflat.iterative_search = relaxed_order;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
SET ivfflat.max_probes = 0;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
SET ivfflat.max_probes = 1;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
SET ivfflat.max_probes = 2;
SELECT * FROM t ORDER BY val <-> '[3,3,3]';
RESET ivfflat.iterative_search;
RESET ivfflat.max_probes;
DROP TABLE t;
-- unlogged
@@ -83,7 +93,7 @@ SET ivfflat.iterative_search = on;
SHOW ivfflat.max_probes;
SET ivfflat.max_probes = -1;
SET ivfflat.max_probes = -2;
SET ivfflat.max_probes = 32769;
DROP TABLE t;