fix rand() values in vector tests

hopefully, it'll fix

MDEV-37559 main.vector sporadic failures
MDEV-36890 Sporadic main.vector_innodb test result mismatch on ppc64el, i386

and mariadb-import sporadic failures

Author: vuvova

mysql-test/main/mariadb-import.result

@@ -262,6 +262,7 @@ db2.parent: Records: 2  Deleted: 0  Skipped: 0  Warnings: 0
 drop database db2;
 create database db2;
 use db2;
+set rand_seed1=1, rand_seed2=2;
 create table vec (id int auto_increment primary key, v vector(5) not null,
 vector index (v)) ENGINE=InnoDB;
 insert vec(v) values (x'e360d63ebe554f3fcdbc523f4522193f5236083d'),

mysql-test/main/mariadb-import.test

@@ -106,6 +106,7 @@ drop database db2;
 drop database db2;
 create database db2;
 use db2;
+set rand_seed1=1, rand_seed2=2;
 
 # Test with vector/fulltext/spatial indexes
 create table vec (id int auto_increment primary key, v vector(5) not null,
@@ -128,6 +129,14 @@ create spatial index idx_geom on locations (geom);
 insert into locations (geom) values (ST_GeomFromText('POINT(40.785091 -73.968285)'));
 --mkdir $MYSQLTEST_VARDIR/tmp/dump
 --exec $MYSQL_DUMP --dir=$MYSQLTEST_VARDIR/tmp/dump db2
+
+# vector index uses randomization when building the index
+# so unless one sets rand_seed variables, results are inherently
+# non-repeatable
+--append_file $MYSQLTEST_VARDIR/tmp/dump/db2/vec.sql
+set rand_seed1=1, rand_seed2=2;
+EOF
+
 --echo # use --verbose to see "Adding secondary indexes" in the output
 --replace_result $MYSQLTEST_VARDIR vardir
 --exec $MYSQL_IMPORT --verbose --dir $MYSQLTEST_VARDIR/tmp/dump --database=db2

mysql-test/main/vector.result

@@ -48,6 +48,7 @@ Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_par
 t1	0	PRIMARY	1	id	A	0	NULL	NULL		BTREE			NO
 t1	1	v	1	v	A	NULL	NULL	NULL		VECTOR			NO
 set mhnsw_default_m=default;
+set rand_seed1=1, rand_seed2=2;
 select * from information_schema.statistics where table_name='t1';
 TABLE_CATALOG	def
 TABLE_SCHEMA	test

mysql-test/main/vector.test

@@ -24,6 +24,7 @@ replace_result InnoDB MyISAM;
 show create table t1;
 show keys from t1;
 set mhnsw_default_m=default;
+set rand_seed1=1, rand_seed2=2;
 
 query_vertical select * from information_schema.statistics where table_name='t1';
 # print unpack("H*",pack("f*",map{rand}1..5))

mysql-test/main/vector_innodb.result

@@ -1,3 +1,4 @@
+set rand_seed1=1, rand_seed2=2;
 create table t1 (id int auto_increment primary key, v vector(8) not null, vector index (v)) engine=innodb;
 show create table t1;
 Table	Create Table

mysql-test/main/vector_innodb.test

@@ -1,5 +1,6 @@
 source include/have_innodb.inc;
 source include/have_sequence.inc;
+set rand_seed1=1, rand_seed2=2;
 
 create table t1 (id int auto_increment primary key, v vector(8) not null, vector index (v)) engine=innodb;
 show create table t1;