Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

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

1 files changed, 774 insertions, 0 deletions

diff --git a/mysql-test/include/ps_query.inc b/mysql-test/include/ps_query.inc
new file mode 100644
index 00000000..bae83c72
--- /dev/null
+++ b/mysql-test/include/ps_query.inc
@@ -0,0 +1,774 @@
+####################### ps_query.inc #########################
+#                                                            #
+#       Tests for prepared statements: SELECTs               #
+#                                                            #
+##############################################################
+
+#    
+# NOTE: PLEASE SEE ps_1general.test (bottom) 
+#       BEFORE ADDING NEW TEST CASES HERE !!!
+
+#
+# Please be aware, that this file will be sourced by several test case files
+# stored within the subdirectory 't'. So every change here will affect 
+# several test cases.
+#
+# Please do not modify (INSERT/UPDATE/DELETE) the content or the 
+# structure (DROP/ALTER..) of the tables
+#     't1' and 't9'. 
+# Such tests should be done in include/ps_modify.inc .
+#
+# But you are encouraged to use these two tables within your SELECT statements
+# whenever possible. 
+#     t1  - very simple table
+#     t9  - table with nearly all available column types
+#
+# The structure and the content of these tables can be found in
+#     include/ps_create.inc  CREATE TABLE ...
+#     include/ps_renew.inc   DELETE all rows and INSERT some rows
+#
+# Both tables are managed by the same storage engine.
+# The type of the storage engine is stored in the variable '$type' . 
+
+
+
+#------------------- Please insert your test cases here -------------------#
+
+
+
+#-------- Please be very carefull when editing behind this line  ----------#
+
+################ simple select tests ################
+--disable_query_log
+select '------ simple select tests ------' as test_sequence ;
+--enable_query_log
+
+##### many column types, but no parameter
+# heavy modified case derived from client_test.c: test_func_fields()
+prepare stmt1 from ' select * from t9 order by c1 ' ;
+--enable_metadata
+execute stmt1;
+--disable_metadata
+
+##### parameter used for keyword like SELECT (must fail)
+set @arg00='SELECT' ;
+--error 1064
+@arg00 a from t1 where a=1;
+--error 1064
+prepare stmt1 from ' ? a from t1 where a=1 ';
+
+##### parameter in select column list
+## parameter is not NULL
+set @arg00=1 ;
+select @arg00, b from t1 where a=1 ;
+prepare stmt1 from ' select ?, b from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+set @arg00='lion' ;
+select @arg00, b from t1 where a=1 ;
+prepare stmt1 from ' select ?, b from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+## parameter is NULL
+set @arg00=NULL ;
+select @arg00, b from t1 where a=1 ;
+prepare stmt1 from ' select ?, b from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+## parameter within an expression
+set @arg00=1 ;
+select b, a - @arg00 from t1 where a=1 ;
+prepare stmt1 from ' select b, a - ? from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+# case derived from client_test.c: test_ps_null_param()
+set @arg00=null ;
+select @arg00 as my_col ;
+prepare stmt1 from ' select ? as my_col';
+execute stmt1 using @arg00 ;
+select @arg00 + 1 as my_col ;
+prepare stmt1 from ' select ? + 1 as my_col';
+execute stmt1 using @arg00 ;
+select 1 + @arg00 as my_col ;
+prepare stmt1 from ' select 1 + ? as my_col';
+execute stmt1 using @arg00 ;
+## parameter is within a function
+# variations on 'substr'
+set @arg00='MySQL' ;
+select substr(@arg00,1,2) from t1 where a=1 ;
+prepare stmt1 from ' select substr(?,1,2) from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+set @arg00=3 ;
+select substr('MySQL',@arg00,5) from t1 where a=1 ;
+prepare stmt1 from ' select substr(''MySQL'',?,5) from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+select substr('MySQL',1,@arg00) from t1 where a=1 ;
+prepare stmt1 from ' select substr(''MySQL'',1,?) from t1 where a=1 ' ;
+execute stmt1 using @arg00 ;
+# variations on 'concat'
+set @arg00='MySQL' ;
+select a , concat(@arg00,b) from t1 order by a;
+# BUG#3796 Prepared statement, select concat(<parameter>,<column>),wrong result
+prepare stmt1 from ' select a , concat(?,b) from t1 order by a ' ;
+execute stmt1 using @arg00;
+#
+select a , concat(b,@arg00) from t1 order by a ;
+prepare stmt1 from ' select a , concat(b,?) from t1 order by a ' ;
+execute stmt1 using @arg00;
+
+# variations on 'group_concat'
+set @arg00='MySQL' ;
+select group_concat(@arg00,b order by a) from t1 
+group by 'a' ;
+prepare stmt1 from ' select group_concat(?,b order by a) from t1
+group by ''a'' ' ;
+execute stmt1 using @arg00;
+#
+select group_concat(b,@arg00 order by a) from t1 
+group by 'a' ;
+prepare stmt1 from ' select group_concat(b,? order by a) from t1
+group by ''a'' ' ;
+execute stmt1 using @arg00;
+
+## two parameters
+set @arg00='first' ;
+set @arg01='second' ;
+set @arg02=NULL;
+select @arg00, @arg01 from t1 where a=1 ;
+prepare stmt1 from ' select ?, ? from t1 where a=1 ' ;
+execute stmt1 using @arg00, @arg01 ;
+# NULL as first and/or last parameter 
+execute stmt1 using @arg02, @arg01 ;
+execute stmt1 using @arg00, @arg02 ;
+execute stmt1 using @arg02, @arg02 ;
+# case derived from client_test.c: test_ps_conj_select()
+#      for BUG#3420: select returned all rows of the table
+--disable_warnings
+drop table if exists t5 ;
+--enable_warnings
+create table t5 (id1 int(11) not null default '0',
+       value2 varchar(100), value1 varchar(100)) ;
+insert into t5 values (1,'hh','hh'),(2,'hh','hh'),
+                  (1,'ii','ii'),(2,'ii','ii') ;
+prepare stmt1 from ' select id1,value1 from t5 where id1=? or value1=? order by id1,value1 ' ;
+set @arg00=1 ;
+set @arg01='hh' ;
+execute stmt1 using @arg00, @arg01 ;
+drop table t5 ;
+# case derived from client_test.c: test_bug1180()
+#      for BUG#1180 optimized away part of WHERE clause
+--disable_warnings
+drop table if exists t5 ;
+--enable_warnings
+create table t5(session_id  char(9) not null) ;
+insert into t5 values ('abc') ;
+prepare stmt1 from ' select * from t5
+where ?=''1111'' and session_id = ''abc'' ' ;
+set @arg00='abc' ;
+execute stmt1 using @arg00 ;
+set @arg00='1111' ;
+execute stmt1 using @arg00 ;
+set @arg00='abc' ;
+execute stmt1 using @arg00 ;
+drop table t5 ;
+
+
+##### parameter used for keyword FROM (must fail)
+set @arg00='FROM' ;
+--error 1064
+select a @arg00 t1 where a=1 ;
+--error 1064
+prepare stmt1 from ' select a ? t1 where a=1 ' ;
+##### parameter used for tablename (must fail)
+set @arg00='t1' ;
+--error 1064
+select a from @arg00 where a=1 ;
+--error 1064
+prepare stmt1 from ' select a from ? where a=1 ' ;
+##### parameter used for keyword WHERE tablename (must fail)
+set @arg00='WHERE' ;
+--error 1064
+select a from t1 @arg00 a=1 ;
+--error 1064
+prepare stmt1 from ' select a from t1 ? a=1 ' ;
+
+##### parameter used in where clause
+# parameter is not NULL
+set @arg00=1 ;
+select a FROM t1 where a=@arg00 ;
+prepare stmt1 from ' select a FROM t1 where a=? ' ;
+execute stmt1 using @arg00 ;
+set @arg00=1000 ;
+# row not found
+execute stmt1 using @arg00 ;
+# parameter is NULL
+set @arg00=NULL ;
+select a FROM t1 where a=@arg00 ;
+prepare stmt1 from ' select a FROM t1 where a=? ' ;
+execute stmt1 using @arg00 ;
+# parameter is not NULL within a function
+set @arg00=4 ;
+select a FROM t1 where a=sqrt(@arg00) ;
+prepare stmt1 from ' select a FROM t1 where a=sqrt(?) ' ;
+execute stmt1 using @arg00 ;
+# parameter is NULL within a function
+set @arg00=NULL ;
+select a FROM t1 where a=sqrt(@arg00) ;
+prepare stmt1 from ' select a FROM t1 where a=sqrt(?) ' ;
+execute stmt1 using @arg00 ;
+# parameter in IN
+set @arg00=2 ;
+set @arg01=3 ;
+select a FROM t1 where a in (@arg00,@arg01) order by a;
+prepare stmt1 from ' select a FROM t1 where a in (?,?) order by a ';
+execute stmt1 using @arg00, @arg01;
+# case derived from client_test.c: test_bug1500()
+set @arg00= 'one' ;
+set @arg01= 'two' ;
+set @arg02= 'five' ;
+prepare stmt1 from ' select b FROM t1 where b in (?,?,?) order by b ' ;
+execute stmt1 using @arg00, @arg01, @arg02 ;
+# parameter in LIKE
+prepare stmt1 from ' select b FROM t1 where b like ? ';
+set @arg00='two' ;
+execute stmt1 using @arg00 ;
+set @arg00='tw%' ;
+execute stmt1 using @arg00 ;
+set @arg00='%wo' ;
+execute stmt1 using @arg00 ;
+# case derived from client_test.c: test_ps_null_param():
+# second part, comparisions with NULL placeholders in prepared
+# mode
+set @arg00=null ;
+insert into t9 set c1= 0, c5 = NULL ;
+select c5 from t9 where c5 > NULL ;
+prepare stmt1 from ' select c5 from t9 where c5 > ? ';
+execute stmt1 using @arg00 ;
+select c5 from t9 where c5 < NULL ;
+prepare stmt1 from ' select c5 from t9 where c5 < ? ';
+execute stmt1 using @arg00 ;
+select c5 from t9 where c5 = NULL ;
+prepare stmt1 from ' select c5 from t9 where c5 = ? ';
+execute stmt1 using @arg00 ;
+select c5 from t9 where c5 <=> NULL ;
+prepare stmt1 from ' select c5 from t9 where c5 <=> ? ';
+execute stmt1 using @arg00 ;
+delete from t9 where c1= 0 ;
+
+##### parameter used for operator in WHERE clause (must fail)
+set @arg00='>' ;
+--error 1064
+select a FROM t1 where a @arg00 1 ;
+--error 1064
+prepare stmt1 from ' select a FROM t1 where a ? 1 ' ;
+
+##### parameter used in group by clause
+set @arg00=1 ;
+select a,b FROM t1 where a is not NULL
+AND b is not NULL group by a - @arg00 ;
+prepare stmt1 from ' select a,b FROM t1 where a is not NULL
+AND b is not NULL group by a - ? ' ;
+execute stmt1 using @arg00 ;
+
+##### parameter used in having clause
+set @arg00='two' ;
+select a,b FROM t1 where a is not NULL
+AND b is not NULL having b <> @arg00 order by a ;
+prepare stmt1 from ' select a,b FROM t1 where a is not NULL
+AND b is not NULL having b <> ? order by a ' ;
+execute stmt1 using @arg00 ;
+
+##### parameter used in order clause
+set @arg00=1 ;
+select a,b FROM t1 where a is not NULL
+AND b is not NULL order by a - @arg00 ;
+prepare stmt1 from ' select a,b FROM t1 where a is not NULL
+AND b is not NULL order by a - ? ' ;
+execute stmt1 using @arg00 ;
+## What is the semantic of a single parameter (integer >0)
+#  after order by? column number or constant
+set @arg00=2 ;
+select a,b from t1 order by 2 ;
+prepare stmt1 from ' select a,b from t1
+order by ? ';
+execute stmt1 using @arg00;
+set @arg00=1 ;
+execute stmt1 using @arg00;
+set @arg00=0 ;
+--error 1054
+execute stmt1 using @arg00;
+
+##### parameter used in limit clause
+set @arg00=1;
+prepare stmt1 from ' select a,b from t1 order by a
+limit 1 ';
+execute stmt1 ;
+prepare stmt1 from ' select a,b from t1 order by a limit ? ';
+execute stmt1 using @arg00;
+
+##### parameter used in many places
+set @arg00='b' ;
+set @arg01=0 ;
+set @arg02=2 ;
+set @arg03=2 ;
+select sum(a), @arg00 from t1 where a > @arg01
+and b is not null group by substr(b,@arg02)
+having sum(a) <> @arg03 ;
+prepare stmt1 from ' select sum(a), ? from t1 where a > ?
+and b is not null group by substr(b,?)
+having sum(a) <> ? ';
+execute stmt1 using @arg00, @arg01, @arg02, @arg03;
+
+
+################ join tests ################
+--disable_query_log
+select '------ join tests ------' as test_sequence ;
+--enable_query_log
+
+# no parameter
+select first.a as a1, second.a as a2 
+from t1 first, t1 second
+where first.a = second.a order by a1 ;
+prepare stmt1 from ' select first.a as a1, second.a as a2 
+        from t1 first, t1 second
+        where first.a = second.a order by a1 ';
+execute stmt1 ;
+
+# some parameters
+set @arg00='ABC';
+set @arg01='two';
+set @arg02='one';
+select first.a, @arg00, second.a FROM t1 first, t1 second
+where @arg01 = first.b or first.a = second.a or second.b = @arg02
+order by second.a, first.a;
+prepare stmt1 from ' select first.a, ?, second.a FROM t1 first, t1 second
+                    where ? = first.b or first.a = second.a or second.b = ?
+                    order by second.a, first.a';
+execute stmt1 using @arg00, @arg01, @arg02;
+
+# test case derived from client_test.c: test_join()
+--disable_warnings
+drop table if exists t2 ;
+--enable_warnings
+create table t2 as select * from t1 ;
+set @query1= 'SELECT * FROM t2 join t1 on (t1.a=t2.a) order by t2.a ' ;
+set @query2= 'SELECT * FROM t2 natural join t1 order by t2.a ' ;
+set @query3= 'SELECT * FROM t2 join t1 using(a) order by t2.a ' ;
+set @query4= 'SELECT * FROM t2 left join t1 on(t1.a=t2.a) order by t2.a ' ;
+set @query5= 'SELECT * FROM t2 natural left join t1 order by t2.a ' ;
+set @query6= 'SELECT * FROM t2 left join t1 using(a) order by t2.a ' ;
+set @query7= 'SELECT * FROM t2 right join t1 on(t1.a=t2.a) order by t2.a ' ;
+set @query8= 'SELECT * FROM t2 natural right join t1 order by t2.a ' ;
+set @query9= 'SELECT * FROM t2 right join t1 using(a) order by t2.a ' ;
+let $1= 9 ;
+while ($1)
+{
+  --disable_query_log
+  eval select @query$1 as 'the join statement is:' ;
+  --enable_query_log
+  eval prepare stmt1 from @query$1 ;
+  let $2= 3 ;
+  while ($2)
+  {
+    execute stmt1 ;
+    dec $2 ;
+  }
+  dec $1 ;
+}
+drop table t2 ;
+
+
+################ subquery tests ################
+--disable_query_log
+select '------ subquery tests ------' as test_sequence ;
+--enable_query_log
+
+# no parameter
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = ''two'') ';
+execute stmt1 ;
+
+###### parameter in the outer part
+set @arg00='two' ;
+select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = 'two' ) and b=@arg00 ;
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = ''two'') and b=? ';
+execute stmt1 using @arg00;
+###### parameter in the inner part
+set @arg00='two' ;
+# Bug#4000 (only BDB tables)
+select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = @arg00 ) and b='two' ;
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = ? ) and b=''two'' ' ;
+execute stmt1 using @arg00;
+set @arg00=3 ;
+set @arg01='three' ;
+select a,b FROM t1 where (a,b) in (select 3, 'three');
+select a FROM t1 where (a,b) in (select @arg00,@arg01);
+prepare stmt1 from ' select a FROM t1 where (a,b) in (select ?, ?) ';
+execute stmt1 using @arg00, @arg01;
+
+###### parameters in the both parts
+set @arg00=1 ;
+set @arg01='two' ;
+set @arg02=2 ;
+set @arg03='two' ;
+# Bug#4000 (only BDB tables)
+select a, @arg00, b FROM t1 outer_table where
+   b=@arg01 and a = (select @arg02 from t1 where b = @arg03 ) ;
+prepare stmt1 from ' select a, ?, b FROM t1 outer_table where
+   b=? and a = (select ? from t1 where b = ? ) ' ;
+execute stmt1 using @arg00, @arg01, @arg02, @arg03 ;
+
+# Bug#8807
+prepare stmt1 from 'select c4 FROM t9 where
+    c13 = (select MAX(b) from t1 where a = ?) and c22 = ? ' ;
+execute stmt1 using @arg01, @arg02;
+
+######## correlated subquery
+# no parameter
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = outer_table.b ) order by a ';
+# also Bug#4000 (only BDB tables)
+execute stmt1 ;
+# test case derived from client_test.c: test_subqueries_ref
+let $1= 3 ;
+while ($1)
+{
+  prepare stmt1 from ' SELECT a as ccc from t1 outr where a+1=
+                           (SELECT 1+outr.a from t1 where outr.a+1=a+1 and a=1) ';
+  execute stmt1 ;
+  deallocate prepare stmt1 ;
+  dec $1 ;
+}
+
+
+###### parameter in the outer part
+set @arg00='two' ;
+# Bug#4000 (only BDB tables)
+select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = outer_table.b ) and b=@arg00 ;
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where b = outer_table.b) and b=? ';
+# also Bug#4000 (only BDB tables)
+execute stmt1 using @arg00;
+
+###### parameter in the inner part
+set @arg00=2 ;
+select a, b FROM t1 outer_table where
+   a = (select a from t1 where a = @arg00 and b = outer_table.b) and b='two' ;
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where a = ? and b = outer_table.b) and b=''two'' ' ;
+execute stmt1 using @arg00;
+
+set @arg00=2 ;
+select a, b FROM t1 outer_table where
+   a = (select a from t1 where outer_table.a = @arg00 and a=2) and b='two' ;
+prepare stmt1 from ' select a, b FROM t1 outer_table where
+   a = (select a from t1 where outer_table.a = ? and a=2) and b=''two'' ' ;
+execute stmt1 using @arg00;
+
+###### parameters in the both parts
+set @arg00=1 ;
+set @arg01='two' ;
+set @arg02=2 ;
+set @arg03='two' ;
+# Bug#4000 (only BDB tables)
+select a, @arg00, b FROM t1 outer_table where
+   b=@arg01 and a = (select @arg02 from t1 where outer_table.b = @arg03
+                        and outer_table.a=a ) ;
+prepare stmt1 from ' select a, ?, b FROM t1 outer_table where
+   b=? and a = (select ? from t1 where outer_table.b = ? 
+                   and outer_table.a=a ) ' ;
+# also Bug#4000 (only BDB tables)
+execute stmt1 using @arg00, @arg01, @arg02, @arg03 ;
+
+###### subquery after from
+set @arg00=1 ;
+set @arg01=0 ;
+select a, @arg00 
+from ( select a - @arg00 as a from t1 where a=@arg00 ) as t2
+where a=@arg01;
+prepare stmt1 from ' select a, ? 
+                    from ( select a - ? as a from t1 where a=? ) as t2
+                    where a=? ';
+execute stmt1 using @arg00, @arg00, @arg00, @arg01 ;
+
+###### subquery  in select list
+# test case derived from client_test.c: test_create_drop
+--disable_warnings
+drop table if exists t2 ;
+--enable_warnings
+create table t2 as select * from t1;
+prepare stmt1 from ' select a in (select a from t2) from t1 ' ;
+execute stmt1 ;
+# test case derived from client_test.c: test_selecttmp()
+--disable_warnings
+drop table if exists t5, t6, t7 ;
+--enable_warnings
+create table t5 (a int , b int) ;
+create table t6 like t5 ;
+create table t7 like t5 ;
+insert into t5 values (0, 100), (1, 2), (1, 3), (2, 2), (2, 7),
+                      (2, -1), (3, 10) ;
+insert into t6 values (0, 0), (1, 1), (2, 1), (3, 1), (4, 1) ;
+insert into t7 values (3, 3), (2, 2), (1, 1) ;
+prepare stmt1 from ' select a, (select count(distinct t5.b) as sum from t5, t6
+                     where t5.a=t6.a and t6.b > 0 and t5.a <= t7.b
+                     group by t5.a order by sum limit 1) from t7 ' ;
+let $1= 3 ;
+while ($1)
+{
+  execute stmt1 ;
+  dec $1 ;
+}
+drop table t5, t6, t7 ;
+
+
+###### heavy modified case derived from client_test.c: test_distinct()
+--disable_warnings
+drop table if exists t2 ;
+--enable_warnings
+create table t2 as select * from t9;
+## unusual and complex SELECT without parameters
+set @stmt= ' SELECT
+   (SELECT SUM(c1 + c12 + 0.0) FROM t2 
+    where (t9.c2 - 0e-3) = t2.c2
+    GROUP BY t9.c15 LIMIT 1) as scalar_s,
+   exists (select 1.0e+0 from t2 
+           where t2.c3 * 9.0000000000 = t9.c4) as exists_s,
+   c5 * 4 in (select c6 + 0.3e+1 from t2) as in_s,
+   (c7 - 4, c8 - 4) in (select c9 + 4.0, c10 + 40e-1 from t2) as in_row_s
+FROM t9,
+(select c25 x, c32 y from t2) tt WHERE x = c25 ' ;
+--enable_metadata
+prepare stmt1 from @stmt ;
+#
+# Result log was disabled upon test case failure in the optimized build.
+#
+--disable_result_log
+execute stmt1 ;
+--disable_metadata
+execute stmt1 ;
+## now expand the terrible SELECT to EXPLAIN SELECT
+set @stmt= concat('explain ',@stmt);
+--enable_metadata
+prepare stmt1 from @stmt ;
+execute stmt1 ;
+--disable_metadata
+# Bug#4271 prepared explain complex select, second executes crashes the server
+execute stmt1 ;
+## many parameters
+## replace the constants of the complex SELECT with parameters
+set @stmt= ' SELECT
+   (SELECT SUM(c1+c12+?) FROM t2 where (t9.c2-?)=t2.c2
+    GROUP BY t9.c15 LIMIT 1) as scalar_s,
+   exists (select ? from t2 
+           where t2.c3*?=t9.c4) as exists_s,
+   c5*? in (select c6+? from t2) as in_s,
+   (c7-?, c8-?) in (select c9+?, c10+? from t2) as in_row_s
+FROM t9,
+(select c25 x, c32 y from t2) tt WHERE x =c25 ' ;
+set @arg00= 0.0 ;
+set @arg01= 0e-3 ;
+set @arg02= 1.0e+0 ;
+set @arg03= 9.0000000000 ;
+set @arg04= 4 ;
+set @arg05= 0.3e+1 ;
+set @arg06= 4 ;
+set @arg07= 4 ;
+set @arg08= 4.0 ;
+set @arg09= 40e-1 ;
+--enable_metadata
+prepare stmt1 from @stmt ;
+execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
+                    @arg07, @arg08, @arg09 ;
+--disable_metadata
+execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
+                    @arg07, @arg08, @arg09 ;
+## now expand the terrible SELECT to EXPLAIN SELECT
+set @stmt= concat('explain ',@stmt);
+--enable_metadata
+prepare stmt1 from @stmt ;
+execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
+                    @arg07, @arg08, @arg09 ;
+--disable_metadata
+execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
+                    @arg07, @arg08, @arg09 ;
+--enable_result_log
+drop table t2 ;
+
+##### test case derived from client_test.c: test_bug4079()
+--error 1242
+select 1 < (select a from t1) ;
+prepare stmt1 from ' select 1 < (select a from t1) ' ;
+--error 1242
+execute stmt1 ;
+# Bug#5066 embedded server, select after failed subquery provides wrong result
+#          (two additional records, all column values NULL)
+select 1 as my_col ;
+
+################ union tests ################
+--disable_query_log
+select '------ union tests ------' as test_sequence ;
+--enable_query_log
+
+# no parameter
+prepare stmt1 from ' select a FROM t1 where a=1
+                     union distinct
+                     select a FROM t1 where a=1 ';
+execute stmt1 ;
+# Bug#3577: the second execute crashes mysqld
+execute stmt1 ;
+prepare stmt1 from ' select a FROM t1 where a=1
+                     union all
+                     select a FROM t1 where a=1 ';
+execute stmt1 ;
+# test case derived from client_test.c: test_bad_union()
+--error 1222
+prepare stmt1 from ' SELECT 1, 2 union SELECT 1 ' ;
+--error 1222
+prepare stmt1 from ' SELECT 1 union SELECT 1, 2 ' ;
+--error 1222
+prepare stmt1 from ' SELECT * from t1 union SELECT 1 ' ;
+--error 1222
+prepare stmt1 from ' SELECT 1 union SELECT * from t1 ' ;
+
+
+##### everything in the first table
+# one parameter as constant in the first table
+set @arg00=1 ;
+select @arg00 FROM t1 where a=1
+union distinct
+select 1 FROM t1 where a=1;
+prepare stmt1 from ' select ? FROM t1 where a=1
+                     union distinct
+                     select 1 FROM t1 where a=1 ' ;
+execute stmt1 using @arg00;
+
+##### everything in the second table
+# one parameter as constant
+set @arg00=1 ;
+select 1 FROM t1 where a=1
+union distinct
+select @arg00 FROM t1 where a=1;
+prepare stmt1 from ' select 1 FROM t1 where a=1
+                     union distinct
+                     select ? FROM t1 where a=1 ' ;
+execute stmt1 using @arg00;
+
+# one parameter in every table
+set @arg00='a' ;
+select @arg00 FROM t1 where a=1
+union distinct
+select @arg00 FROM t1 where a=1;
+prepare stmt1 from ' select ? FROM t1 where a=1
+                     union distinct
+                     select ? FROM t1 where a=1 ';
+# BUG#3811 wrong result, prepared statement, union, 
+# parameter in result column list
+execute stmt1 using @arg00, @arg00;
+prepare stmt1 from ' select ? 
+                     union distinct
+                     select ? ';
+execute stmt1 using @arg00, @arg00;
+
+# many parameters
+set @arg00='a' ;
+set @arg01=1 ;
+set @arg02='a' ;
+set @arg03=2 ;
+select @arg00 FROM t1 where a=@arg01
+union distinct
+select @arg02 FROM t1 where a=@arg03;
+prepare stmt1 from ' select ? FROM t1 where a=?
+                     union distinct
+                     select ? FROM t1 where a=? ' ;
+execute stmt1 using @arg00, @arg01, @arg02, @arg03;
+
+## increased complexity
+
+set @arg00=1 ;
+# Bug#3686 the wrong server response was 1140 Mixing of GROUP columns ..
+prepare stmt1 from ' select sum(a) + 200, ? from t1
+union distinct
+select sum(a) + 200, 1 from t1
+group by b ' ;
+execute stmt1 using @arg00;
+
+set @Oporto='Oporto' ;
+set @Lisboa='Lisboa' ;
+set @0=0 ;
+set @1=1 ;
+set @2=2 ;
+set @3=3 ;
+set @4=4 ;
+select @Oporto,@Lisboa,@0,@1,@2,@3,@4 ;
+
+## union + group by
+select sum(a) + 200 as the_sum, @Oporto as the_town from t1
+group by b
+union distinct
+select sum(a) + 200, @Lisboa from t1
+group by b ;
+
+prepare stmt1 from ' select sum(a) + 200 as the_sum, ? as the_town from t1
+                     group by b
+                     union distinct
+                     select sum(a) + 200, ? from t1
+                     group by b ' ;
+execute stmt1 using @Oporto, @Lisboa;
+
+
+## union + where + group by
+select sum(a) + 200 as the_sum, @Oporto as the_town from t1
+where a > @1
+group by b
+union distinct
+select sum(a) + 200, @Lisboa from t1
+where a > @2
+group by b ;
+
+prepare stmt1 from ' select sum(a) + 200 as the_sum, ? as the_town from t1
+                     where a > ?
+                     group by b
+                     union distinct
+                     select sum(a) + 200, ? from t1
+                     where a > ?
+                     group by b ' ;
+execute stmt1 using @Oporto, @1, @Lisboa, @2;
+
+## union + where + group by + having
+select sum(a) + 200 as the_sum, @Oporto as the_town from t1
+where a > @1
+group by b
+having avg(a) > @2
+union distinct
+select sum(a) + 200, @Lisboa from t1
+where a > @2
+group by b 
+having avg(a) > @3;
+
+prepare stmt1 from ' select sum(a) + 200 as the_sum, ? as the_town from t1
+                     where a > ?
+                     group by b
+                     having avg(a) > ?
+                     union distinct
+                     select sum(a) + 200, ? from t1
+                     where a > ?
+                     group by b
+                     having avg(a) > ? ';
+execute stmt1 using @Oporto, @1, @2, @Lisboa, @2, @3;
+
+
+################ explain select tests ################
+--disable_query_log
+select '------ explain select tests ------' as test_sequence ;
+--enable_query_log
+--disable_metadata
+# table with many column types
+prepare stmt1 from ' explain select * from t9 ' ;
+--enable_metadata
+--replace_result 4096 4_OR_8_K 8192 4_OR_8_K
+execute stmt1;
+--disable_metadata
+
+