fix unstable test

Author: sivukhin

libsql-sqlite3/test/libsql_vector_index.test

@@ -131,21 +131,21 @@ do_execsql_test vector-empty {
 
 
 do_execsql_test vector-null {
-  CREATE TABLE t_null( v FLOAT32(3));
+  CREATE TABLE t_null( v FLOAT32(2));
   CREATE INDEX t_null_idx ON t_null( libsql_vector_idx(v) );
-  INSERT INTO t_null VALUES(vector('[1,2,3]'));
+  INSERT INTO t_null VALUES(vector('[1,-1]'));
   INSERT INTO t_null VALUES(NULL);
-  INSERT INTO t_null VALUES(vector('[3,4,5]'));
-  SELECT * FROM vector_top_k('t_null_idx', '[1,2,3]', 2);
-  UPDATE t_null SET v = vector('[2,3,4]') WHERE rowid = 2;
-  SELECT rowid FROM vector_top_k('t_null_idx', vector('[2,3,4]'), 3);
+  INSERT INTO t_null VALUES(vector('[-2,1]'));
+  SELECT * FROM vector_top_k('t_null_idx', '[1,1]', 2);
+  UPDATE t_null SET v = vector('[1,1]') WHERE rowid = 2;
+  SELECT rowid FROM vector_top_k('t_null_idx', vector('[1,1]'), 3);
   UPDATE t_null SET v = NULL WHERE rowid = 3;
-  SELECT rowid FROM vector_top_k('t_null_idx', vector('[2,3,4]'), 3);
+  SELECT rowid FROM vector_top_k('t_null_idx', vector('[1,1]'), 3);
   UPDATE t_null SET v = NULL;
-  SELECT rowid FROM vector_top_k('t_null_idx', vector('[2,3,4]'), 3);
+  SELECT rowid FROM vector_top_k('t_null_idx', vector('[1,1]'), 3);
 } {
   1 3
-  2 3 1
+  2 1 3
   2 1
 }