Add expected output for unlogged table test

test/expected/hnsw_unlogged.out

@@ -0,0 +1,185 @@
+---------------------------------------------------------------------
+-- Test support for unlogged tables
+---------------------------------------------------------------------
+-- Test insertion and index creation on an empty unlogged table
+CREATE UNLOGGED TABLE small_world_unlogged (
+    id varchar(3),
+    vector real[]
+);
+INSERT INTO small_world_unlogged (id, vector) VALUES
+('000', '{1,0,0,0}'),
+('001', '{1,0,0,1}'),
+('010', '{1,0,1,0}'),
+('011', '{1,0,1,1}'),
+('100', '{1,1,0,0}'),
+('101', '{1,1,0,1}'),
+('110', '{1,1,1,0}'),
+('111', '{1,1,1,1}');
+CREATE INDEX small_world4_hnsw_idx ON small_world_unlogged USING hnsw (vector) WITH (M=14, ef=22, ef_construction=2);
+INFO:  done init usearch index
+INFO:  inserted 8 elements
+INFO:  done saving 8 vectors
+INFO:  done init usearch index for unlogged table
+-- Creating the index should not prevent further insertions
+INSERT INTO small_world_unlogged (id, vector) VALUES
+('000', '{1,0,0,0}'),
+('001', '{1,0,0,1}'),
+('010', '{1,0,1,0}');
+-- Attempt to insert a row with an incorrect vector length
+\set ON_ERROR_STOP off
+INSERT INTO small_world_unlogged (id, vector) VALUES ('111', '{1,1,1}');
+ERROR:  Wrong number of dimensions: 3 instead of 4 expected
+\set ON_ERROR_STOP on
+-- Verify that the index works
+SET enable_seqscan = false;
+SELECT * FROM ldb_get_indexes('small_world_unlogged');
+       indexname       | size  |                                                             indexdef                                                              | total_index_size 
+-----------------------+-------+-----------------------------------------------------------------------------------------------------------------------------------+------------------
+ small_world4_hnsw_idx | 24 kB | CREATE INDEX small_world4_hnsw_idx ON public.small_world_unlogged USING hnsw (vector) WITH (m='14', ef='22', ef_construction='2') | 24 kB
+(1 row)
+
+SELECT vector AS vector000 FROM small_world_unlogged WHERE id = '000';
+ vector000 
+-----------
+ {1,0,0,0}
+ {1,0,0,0}
+(2 rows)
+
+EXPLAIN (COSTS FALSE) SELECT ROUND(l2sq_dist(vector, '{1,0,0,0}')::numeric, 2) FROM small_world_unlogged;
+            QUERY PLAN            
+----------------------------------
+ Seq Scan on small_world_unlogged
+(1 row)
+
+SELECT ROUND(l2sq_dist(vector, '{1,0,0,0}')::numeric, 2) FROM small_world_unlogged;
+ round 
+-------
+  0.00
+  1.00
+  1.00
+  2.00
+  1.00
+  2.00
+  2.00
+  3.00
+  0.00
+  1.00
+  1.00
+(11 rows)
+
+DROP TABLE small_world_unlogged;
+-- Validate that creating an index from file works
+\ir utils/sift1k_array_unlogged.sql
+CREATE UNLOGGED TABLE IF NOT EXISTS sift_base1k_unlogged (
+    id SERIAL,
+    v REAL[]
+);
+COPY sift_base1k_unlogged (v) FROM '/tmp/lantern/vector_datasets/sift_base1k_arrays.csv' WITH csv;
+CREATE INDEX hnsw_l2_index ON sift_base1k_unlogged USING hnsw (v) WITH (_experimental_index_path='/tmp/lantern/files/index-sift1k-l2.usearch');
+INFO:  done init usearch index
+INFO:  done loading usearch index
+INFO:  done saving 1000 vectors
+INFO:  done init usearch index for unlogged table
+SELECT * FROM ldb_get_indexes('sift_base1k_unlogged');
+   indexname   |  size  |                                                                       indexdef                                                                        | total_index_size 
+---------------+--------+-------------------------------------------------------------------------------------------------------------------------------------------------------+------------------
+ hnsw_l2_index | 720 kB | CREATE INDEX hnsw_l2_index ON public.sift_base1k_unlogged USING hnsw (v) WITH (_experimental_index_path='/tmp/lantern/files/index-sift1k-l2.usearch') | 720 kB
+(1 row)
+
+SELECT v AS v777 FROM sift_base1k_unlogged WHERE id = 777 \gset
+EXPLAIN (COSTS FALSE) SELECT ROUND(l2sq_dist(v, :'v777')::numeric, 2) FROM sift_base1k_unlogged order by v <-> :'v777' LIMIT 10;
+                                                                                                                                                                                QUERY PLAN                                                                                                                                                                                 
+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ Limit
+   ->  Index Scan using hnsw_l2_index on sift_base1k_unlogged
+         Order By: (v <-> '{97,67,0,0,0,0,0,14,49,107,23,0,0,0,5,24,4,25,48,5,0,1,8,3,0,5,17,3,1,1,3,3,126,126,0,0,0,0,0,27,49,126,49,8,1,4,11,14,0,6,37,39,10,22,25,0,0,0,12,27,7,23,35,3,126,9,1,0,0,0,19,126,28,11,8,7,1,39,126,126,0,1,28,27,3,126,126,0,1,3,7,9,0,52,126,5,13,5,8,0,0,0,33,72,78,19,18,3,0,3,21,126,42,13,64,83,1,9,8,23,1,4,22,68,3,1,4,0}'::real[])
+(3 rows)
+
+SELECT ROUND(l2sq_dist(v, :'v777')::numeric, 2) FROM sift_base1k_unlogged order by v <-> :'v777' LIMIT 10;
+   round   
+-----------
+      0.00
+  98486.00
+ 108785.00
+ 115194.00
+ 117411.00
+ 127293.00
+ 127986.00
+ 130663.00
+ 130863.00
+ 132455.00
+(10 rows)
+
+-- Validate that inserting rows on index created from file works as expected
+INSERT INTO sift_base1k_unlogged (id, v) VALUES 
+(1001, array_fill(1, ARRAY[128])),
+(1002, array_fill(2, ARRAY[128]));
+SELECT v AS v1001 FROM sift_base1k_unlogged WHERE id = 1001 \gset
+SELECT ROUND(l2sq_dist(v, :'v1001')::numeric, 2) FROM sift_base1k_unlogged order by v <-> :'v1001' LIMIT 10;
+   round   
+-----------
+      0.00
+    128.00
+ 249249.00
+ 249285.00
+ 249418.00
+ 249457.00
+ 249515.00
+ 249589.00
+ 249647.00
+ 249652.00
+(10 rows)
+
+DROP TABLE sift_base1k_unlogged CASCADE;
+-- Verify that unlogged tables work with the l2sq_ops distance function
+\ir utils/small_world_array_unlogged.sql
+CREATE UNLOGGED TABLE small_world_unlogged (
+    id VARCHAR(3),
+    b BOOLEAN,
+    v REAL[3]
+);
+INSERT INTO small_world_unlogged (id, b, v) VALUES
+    ('000', TRUE,  '{0,0,0}'),
+    ('001', TRUE,  '{0,0,1}'),
+    ('010', FALSE, '{0,1,0}'),
+    ('011', TRUE,  '{0,1,1}'),
+    ('100', FALSE, '{1,0,0}'),
+    ('101', FALSE, '{1,0,1}'),
+    ('110', FALSE, '{1,1,0}'),
+    ('111', TRUE,  '{1,1,1}');
+CREATE UNLOGGED TABLE small_world_l2_unlogged (id VARCHAR(3), vector REAL[]);
+CREATE INDEX ON small_world_l2_unlogged USING hnsw (vector dist_l2sq_ops) WITH (dim=3);
+INFO:  done init usearch index
+INFO:  inserted 0 elements
+INFO:  done saving 0 vectors
+INFO:  done init usearch index for unlogged table
+INSERT INTO small_world_l2_unlogged SELECT id, v FROM small_world_unlogged;
+SELECT ROUND(l2sq_dist(vector, '{0,1,0}')::numeric, 2) FROM small_world_l2_unlogged ORDER BY vector <-> '{0,1,0}';
+ round 
+-------
+  0.00
+  1.00
+  1.00
+  1.00
+  2.00
+  2.00
+  2.00
+  3.00
+(8 rows)
+
+SELECT ARRAY_AGG(id ORDER BY id), ROUND(l2sq_dist(vector, '{0,1,0}')::numeric, 2) FROM small_world_l2_unlogged GROUP BY 2 ORDER BY 2;
+   array_agg   | round 
+---------------+-------
+ {010}         |  0.00
+ {000,011,110} |  1.00
+ {001,100,111} |  2.00
+ {101}         |  3.00
+(4 rows)
+
+EXPLAIN SELECT id FROM small_world_l2_unlogged ORDER BY vector <-> '{0,1,0}';
+                                                      QUERY PLAN                                                       
+-----------------------------------------------------------------------------------------------------------------------
+ Index Scan using small_world_l2_unlogged_vector_idx on small_world_l2_unlogged  (cost=0.00..60.05 rows=1070 width=20)
+   Order By: (vector <-> '{0,1,0}'::real[])
+(2 rows)
+