Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 534 insertions, 0 deletions

diff --git a/mysql-test/main/user_var.test b/mysql-test/main/user_var.test
new file mode 100644
index 00000000..15bc5276
--- /dev/null
+++ b/mysql-test/main/user_var.test
@@ -0,0 +1,534 @@
+# Initialise
+source include/have_sequence.inc;
+
+
+--error 1054
+set @a := foo;
+set @a := connection_id() + 3;
+select @a - connection_id();
+
+set @b := 1;
+select @b;
+
+# Check using and setting variables with SELECT DISTINCT
+
+CREATE TABLE t1 ( i int not null, v int not null,index (i));
+insert into t1 values (1,1),(1,3),(2,1); 
+create table t2 (i int not null, unique (i));
+insert into t2 select distinct i from t1;
+select * from t2; 
+select distinct t2.i,@vv1:=if(sv1.i,1,0),@vv2:=if(sv2.i,1,0),@vv3:=if(sv3.i,1,0), @vv1+@vv2+@vv3 from t2 left join t1 as sv1 on sv1.i=t2.i and sv1.v=1 left join t1 as sv2 on sv2.i=t2.i and sv2.v=2 left join t1 as sv3 on sv3.i=t2.i and sv3.v=3;
+explain select * from t1 where i=@vv1;
+select @vv1,i,v from t1 where i=@vv1;
+explain select * from t1 where @vv1:=@vv1+1 and i=@vv1;
+explain select @vv1:=i from t1 where i=@vv1;
+explain select * from t1 where i=@vv1;
+drop table t1,t2;
+
+--disable_ps2_protocol
+# Check types of variables
+set @a=0,@b=0;
+select @a:=10,   @b:=1,   @a > @b, @a < @b;
+# Note that here a and b will be avaluated as number
+select @a:="10", @b:="1", @a > @b, @a < @b;
+# Note that here a and b will be avaluated as strings
+select @a:=10,   @b:=2,   @a > @b, @a < @b;
+select @a:="10", @b:="2", @a > @b, @a < @b;
+
+# Fixed bug #1194
+select @a:=1;
+select @a, @a:=1;
+
+create table t1 (id int, d double, c char(10));
+insert into t1 values (1,2.0, "test");
+select @c:=0;
+update t1 SET id=(@c:=@c+1);
+select @c;
+select @c:=0;
+update t1 set id=(@c:=@c+1);
+select @c;
+select @c:=0;
+select @c:=@c+1;
+select @d,(@d:=id),@d from t1;
+select @e,(@e:=d),@e from t1;
+select @f,(@f:=c),@f from t1;
+set @g=1;
+select @g,(@g:=c),@g from t1;
+select @c, @d, @e, @f;
+select @d:=id, @e:=id, @f:=id, @g:=@id from t1;
+select @c, @d, @e, @f, @g;
+drop table t1;
+
+# just for fun :)
+select @a:=10, @b:=2, @a>@b, @a:="10", @b:="2", @a>@b, @a:=10, @b:=2, @a>@b, @a:="10", @b:="2", @a>@b;
+
+#
+# bug#1739
+# Item_func_set_user_var sets update_query_id, Item_func_get_user_var checks it
+#
+create table t1 (i int not null);
+insert t1 values (1),(2),(2),(3),(3),(3);
+select @a:=0; select @a, @a:=@a+count(*), count(*), @a from t1 group by i;
+select @a:=0; select @a+0, @a:=@a+0+count(*), count(*), @a+0 from t1 group by i;
+
+set @a=0;
+select @a,@a:="hello",@a,@a:=3,@a,@a:="hello again" from t1 group by i;
+select @a,@a:="hello",@a,@a:=3,@a,@a:="hello again" from t1 group by i;
+drop table t1;
+--enable_ps2_protocol
+
+#
+# Bug #2244: User variables didn't copy collation and derivation
+# attributes from values they were initialized to.
+#
+
+set @a=_latin2'test';
+select charset(@a),collation(@a),coercibility(@a);
+select @a=_latin2'TEST';
+select @a=_latin2'TEST' collate latin2_bin;
+
+set @a=_latin2'test' collate latin2_general_ci;
+select charset(@a),collation(@a),coercibility(@a);
+select @a=_latin2'TEST';
+select @a=_latin2'TEST' collate latin2_bin;
+
+#
+# Check the same invoking Item_set_user_var
+#
+select charset(@a:=_latin2'test');
+select collation(@a:=_latin2'test');
+select coercibility(@a:=_latin2'test');
+select collation(@a:=_latin2'test' collate latin2_bin);
+select coercibility(@a:=_latin2'test' collate latin2_bin);
+select (@a:=_latin2'test' collate latin2_bin) = _latin2'TEST';
+select charset(@a),collation(@a),coercibility(@a);
+select (@a:=_latin2'test' collate latin2_bin) = _latin2'TEST' collate latin2_general_ci;
+
+#
+# Bug #6321 strange error:
+#   string function FIELD(<uservariable content NULL>, ...)
+#
+set @var= NULL ;
+select FIELD( @var,'1it','Hit') as my_column;
+
+#
+# Bug#9425 A user variable doesn't always have implicit coercibility
+#
+select @v, coercibility(@v);
+set @v1=null, @v2=1, @v3=1.1, @v4=now();
+select coercibility(@v1),coercibility(@v2),coercibility(@v3),coercibility(@v4);
+
+#
+# Bug #9286  SESSION/GLOBAL should be disallowed for user variables
+#
+--error 1064
+set session @honk=99;
+
+#
+# Bug #10724  @@local not preserved in column name of select
+#
+# The value doesn't actually matter, we just care about the column name
+--replace_column 1 #
+select @@local.max_allowed_packet;
+--replace_column 1 #
+select @@session.max_allowed_packet;
+--replace_column 1 #
+select @@global.max_allowed_packet;
+--replace_column 1 #
+select @@max_allowed_packet;
+--replace_column 1 #
+select @@Max_Allowed_Packet;
+--replace_column 1 #
+select @@version;
+--replace_column 1 #
+select @@global.version;
+
+--echo End of 4.1 tests
+
+# Bug #6598: problem with cast(NULL as signed integer);
+#
+
+set @first_var= NULL;
+create table t1 select @first_var;
+show create table t1;
+drop table t1;
+set @first_var= cast(NULL as signed integer);
+create table t1 select @first_var;
+show create table t1;
+drop table t1;
+set @first_var= NULL;
+create table t1 select @first_var;
+show create table t1;
+drop table t1;
+set @first_var= concat(NULL);
+create table t1 select @first_var;
+show create table t1;
+drop table t1;
+set @first_var=1;
+set @first_var= cast(NULL as CHAR);
+create table t1 select @first_var;
+show create table t1;
+drop table t1;
+
+#
+# Bug #7498 User variable SET saves SIGNED BIGINT as UNSIGNED BIGINT
+#
+
+# First part, set user var to large number and select it
+set @a=18446744071710965857;
+select @a;
+
+# Second part, set user var from large number in table
+# then select it
+CREATE TABLE `bigfailure` (
+  `afield` BIGINT UNSIGNED NOT NULL
+);
+INSERT INTO `bigfailure` VALUES (18446744071710965857);
+SELECT * FROM bigfailure;
+select * from (SELECT afield FROM bigfailure) as b;
+select * from bigfailure where afield = (SELECT afield FROM bigfailure);
+select * from bigfailure where afield = 18446744071710965857;
+# This is fixed in 5.0, to be uncommented there
+#select * from bigfailure where afield = '18446744071710965857';
+select * from bigfailure where afield = 18446744071710965856+1;
+
+SET @a := (SELECT afield FROM bigfailure);
+SELECT @a;
+SET @a := (select afield from (SELECT afield FROM bigfailure) as b);
+SELECT @a;
+SET @a := (select * from bigfailure where afield = (SELECT afield FROM bigfailure));
+SELECT @a;
+
+drop table bigfailure;
+
+#
+# Bug#16861: User defined variable can have a wrong value if a tmp table was
+#            used.
+#
+create table t1(f1 int, f2 int);
+insert into t1 values (1,2),(2,3),(3,1);
+select @var:=f2 from t1 group by f1 order by f2 desc limit 1;
+select @var;
+create table t2 as select @var:=f2 from t1 group by f1 order by f2 desc limit 1;
+select * from t2;
+select @var;
+drop table t1,t2;
+
+#
+# Bug#19024 - SHOW COUNT(*) WARNINGS not return Errors 
+#
+--error 1064
+insert into city 'blah';
+SHOW COUNT(*) WARNINGS;
+SHOW COUNT(*) ERRORS;
+
+#
+# Bug#28494: Grouping by Item_func_set_user_var produces incorrect result.
+#
+create table t1(f1 int, f2 varchar(2), f3 float, f4 decimal(2,1));
+insert into t1 values 
+  (1, "a", 1.5, 1.6), (1, "a", 1.5, 1.6), (2, "b", 2.5, 2.6),
+  (3, "c", 3.5, 3.6), (4, "d", 4.5, 4.6), (1, "a", 1.5, 1.6),
+  (3, "c", 3.5, 3.6), (1, "a", 1.5, 1.6);
+select @a:=f1, count(f1) from t1 group by 1 desc;
+select @a:=f1, count(f1) from t1 group by 1 asc;
+select @a:=f2, count(f2) from t1 group by 1 desc;
+select @a:=f3, count(f3) from t1 group by 1 desc;
+select @a:=f4, count(f4) from t1 group by 1 desc;
+drop table t1;
+
+#
+# Bug#32482: Crash for a query with ORDER BY a user variable.
+#
+create table t1 (f1 int);
+insert into t1 values (2), (1);
+select @i := f1 as j from t1 order by 1;
+drop table t1;
+# Bug #32260: User variables in query cause server crash
+#
+create table t1(a int);
+insert into t1 values(5),(4),(4),(3),(2),(2),(2),(1);
+set @rownum := 0;
+set @rank := 0;
+set @prev_score := NULL;
+# Disable the result log as we assign a value to a user variable in one part 
+# of a statement and use the same variable in other part of the same statement,
+# so we can get unexpected results.
+--disable_result_log
+select @rownum := @rownum + 1 as row,
+ @rank := IF(@prev_score!=a, @rownum, @rank) as rank,
+ @prev_score := a as score
+from t1 order by score desc;
+--enable_result_log
+drop table t1;
+
+#
+# Bug#26020: User-Defined Variables are not consistent with columns data types
+#
+--disable_ps2_protocol
+create table t1(b bigint);
+insert into t1 (b) values (10), (30), (10), (10);
+set @var := 0;
+explain select if(b=@var, 999, b) , @var := b from t1  order by b;
+set @var := 0;
+--sorted_result
+select if(b=@var, 999, b) , @var := b from t1  order by b;
+drop table t1;
+
+create temporary table t1 (id int);
+insert into t1 values (2), (3), (3), (4);
+set @lastid=-1;
+select @lastid != id, @lastid, @lastid := id from t1;
+drop table t1;
+
+create temporary table t1 (id bigint);
+insert into t1 values (2), (3), (3), (4);
+set @lastid=-1;
+select @lastid != id, @lastid, @lastid := id from t1;
+drop table t1;
+--enable_ps2_protocol
+
+#
+# Bug#42009: SELECT into variable gives different results to direct SELECT
+#
+CREATE TABLE t1(a INT, b INT);
+INSERT INTO t1 VALUES (0, 0), (2, 1), (2, 3), (1, 1), (30, 20);
+SELECT a, b INTO @a, @b FROM t1 WHERE a=2 AND b=3 GROUP BY a, b;
+SELECT @a, @b;
+SELECT a, b FROM t1 WHERE a=2 AND b=3 GROUP BY a, b;
+DROP TABLE t1;
+
+#
+# Bug#47371: reference by same column name
+#
+CREATE TABLE t1 (f1 int(11) default NULL, f2 int(11) default NULL);
+CREATE TABLE t2 (f1 int(11) default NULL, f2 int(11) default NULL, foo int(11));
+CREATE TABLE t3 (f1 int(11) default NULL, f2 int(11) default NULL);
+
+INSERT INTO t1 VALUES(10, 10);
+INSERT INTO t1 VALUES(10, 10);
+INSERT INTO t2 VALUES(10, 10, 10);
+INSERT INTO t2 VALUES(10, 10, 10);
+INSERT INTO t3 VALUES(10, 10);
+INSERT INTO t3 VALUES(10, 10);
+
+SELECT MIN(t2.f1),
+@bar:= (SELECT MIN(t3.f2) FROM t3 WHERE t3.f2 > foo)
+FROM t1,t2 WHERE t1.f1 = t2.f1 ORDER BY t2.f1;
+
+DROP TABLE t1, t2, t3;
+
+--echo End of 5.0 tests
+
+#
+# Bug#42188: crash and/or memory corruption with user variables in trigger
+#
+
+CREATE TABLE t1 (i INT);
+CREATE TRIGGER t_after_insert AFTER INSERT ON t1 FOR EACH ROW SET @bug42188 = 10;
+INSERT INTO t1 VALUES (1);
+--change_user root,,test
+INSERT INTO t1 VALUES (1);
+DROP TABLE t1;
+
+#
+# Bug #55615: debug assertion after using variable in assignment and
+# referred to
+# Bug #55564: crash with user variables, assignments, joins...
+#
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0),(0);
+--disable_ps2_protocol
+--echo # BUG#55615 : should not crash
+SELECT (@a:=(SELECT @a:=1 FROM t1 LIMIT 1)) AND COUNT(1) FROM t1 GROUP BY @a;
+--enable_ps2_protocol
+--echo # BUG#55564 : should not crash
+SELECT IF(
+  @v:=LEAST((SELECT 1 FROM t1 t2 LEFT JOIN t1 ON (@v) GROUP BY t1.a), a),
+  count(*), 1) 
+FROM t1 GROUP BY a LIMIT 1;
+
+DROP TABLE t1;
+
+#
+# BUG#56138 "valgrind errors about overlapping memory when
+# double-assigning same variable"
+#
+
+select @v:=@v:=sum(1) from dual;
+
+#
+# Bug #57187: more user variable fun with multiple assignments and
+#             comparison in query
+#
+
+CREATE TABLE t1(a DECIMAL(31,21));
+INSERT INTO t1 VALUES (0);
+
+SELECT (@v:=a) <> (@v:=1) FROM t1;
+
+DROP TABLE t1;
+
+#
+# lp:1001506 Crash on a query with GROUP BY and user variables
+# MySQL Bug #11764372 57197: EVEN MORE USER VARIABLE CRASHING FUN
+#
+
+CREATE TABLE t1(a int);
+INSERT INTO t1 VALUES (1), (2);
+SELECT DISTINCT @a:=MIN(t1.a) FROM t1, t1 AS t2
+GROUP BY @b:=(SELECT COUNT(*) > t2.a);
+DROP TABLE t1;
+
+#
+#
+# Bug #12408412: GROUP_CONCAT + ORDER BY + INPUT/OUTPUT
+#   SAME USER VARIABLE = CRASH
+#
+SET @bug12408412=1;
+SELECT GROUP_CONCAT(@bug12408412 ORDER BY 1) INTO @bug12408412;
+
+--echo End of 5.1 tests
+
+#
+# MDEV-616 lp:1002126
+# Bug #11764371 57196: MORE FUN WITH ASSERTION: !TABLE->FILE ||
+# TABLE->FILE->INITED == HANDLER::
+#
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0);
+SELECT DISTINCT POW(COUNT(*), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a))
+AS b FROM t1 GROUP BY a;
+SELECT @a;
+DROP TABLE t1;
+CREATE TABLE t1(f1 INT, f2 INT);
+INSERT INTO t1 VALUES (1,2),(2,3),(3,1);
+CREATE TABLE t2(a INT);
+INSERT INTO t2 VALUES (1);
+SET @var=NULL;
+SELECT @var:=(SELECT f2 FROM t2 WHERE @var) FROM t1 GROUP BY f1 ORDER BY f2 DESC
+LIMIT 1;
+SELECT @var;
+DROP TABLE t1, t2;
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0),(1),(3);
+SELECT DISTINCT POW(COUNT(distinct a), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a limit 1)) AS b FROM t1 GROUP BY a;
+SELECT @a;
+DROP TABLE t1;
+
+--echo End of 5.2 tests
+
+#
+# Bug#50511: Sometimes wrong handling of user variables containing NULL.
+#
+
+CREATE TABLE t1(f1 INT AUTO_INCREMENT, PRIMARY KEY(f1));
+
+INSERT INTO t1 SET f1 = NULL ;
+
+SET @aux = NULL ;
+INSERT INTO t1 SET f1 = @aux ;
+
+SET @aux1 = 0.123E-1;
+SET @aux1 = NULL;
+INSERT INTO t1 SET f1 = @aux1 ;
+
+SELECT * FROM t1;
+
+DROP TABLE t1;
+
+CREATE TABLE t1(f1 VARCHAR(257) , f2 INT, PRIMARY KEY(f2));
+CREATE TRIGGER trg1 BEFORE INSERT ON t1 FOR EACH ROW SET @aux = 1;
+
+SET @aux = 1; # INT
+SET @aux = NULL;
+INSERT INTO test.t1 (f1, f2) VALUES (1, 1), (@aux, 2);
+
+SET @aux = 'text'; # STRING
+SET @aux = NULL;
+INSERT INTO t1(f1, f2) VALUES (1, 3), (@aux, 4);
+
+SELECT f1, f2 FROM t1 ORDER BY f2;
+
+DROP TRIGGER trg1;
+DROP TABLE t1;
+
+--echo #
+--echo # Bug #12408412: GROUP_CONCAT + ORDER BY + INPUT/OUTPUT
+--echo #   SAME USER VARIABLE = CRASH
+--echo #
+
+SET @bug12408412=1;
+SELECT GROUP_CONCAT(@bug12408412 ORDER BY 1) INTO @bug12408412;
+
+#
+# MDEV-616 LP BUG#1002126
+# Bug #11764371 57196: MORE FUN WITH ASSERTION: !TABLE->FILE ||
+# TABLE->FILE->INITED == HANDLER::
+#
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0);
+SELECT DISTINCT POW(COUNT(*), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a))
+AS b FROM t1 GROUP BY a;
+SELECT @a;
+DROP TABLE t1;
+CREATE TABLE t1(f1 INT, f2 INT);
+INSERT INTO t1 VALUES (1,2),(2,3),(3,1);
+CREATE TABLE t2(a INT);
+INSERT INTO t2 VALUES (1);
+SET @var=NULL;
+SELECT @var:=(SELECT f2 FROM t2 WHERE @var) FROM t1 GROUP BY f1 ORDER BY f2 DESC
+LIMIT 1;
+SELECT @var;
+DROP TABLE t1, t2;
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0),(1),(3);
+SELECT DISTINCT POW(COUNT(distinct a), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a limit 1)) AS b FROM t1 GROUP BY a;
+SELECT @a;
+DROP TABLE t1;
+
+--echo End of 5.5 tests
+
+--echo #
+--echo # Check that used memory extends if we set a variable
+--echo #
+
+--disable_service_connection
+# Execute twice so number stablizes a bit
+let $tmp= `select memory_used from information_schema.processlist`;
+set @var= repeat('a',30000);
+let $tmp2= `select memory_used from information_schema.processlist`;
+--disable_query_log
+--disable_column_names
+eval select $tmp < $tmp2;
+--enable_column_names
+--enable_query_log
+--enable_service_connection
+
+#
+# MDEV-13897 SELECT @a := MAX(col) FROM t requires full index scan
+#
+explain select @a:=max(seq) from seq_1_to_1000000;
+
+# End of 10.1 tests
+
+--echo #
+--echo # Start of 10.3 tests
+--echo #
+
+--echo #
+--echo # MDEV-12859 Out-of-range error for CREATE..SELECT @a:=EXTRACT(MINUTE_MICROSECOND FROM..
+--echo #
+
+SET sql_mode=STRICT_ALL_TABLES;
+CREATE OR REPLACE TABLE t1 AS
+SELECT @a:=EXTRACT(MINUTE_MICROSECOND FROM '2001-01-01 11:22:33.999999') AS c1;
+SHOW CREATE TABLE t1;
+SELECT * FROM t1;
+DROP TABLE t1;
+SET sql_mode=DEFAULT;