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into shellback.(none):/home/msvensson/mysql/mysql-5.1-maint BitKeeper/etc/ignore: auto-union Makefile.am: Auto merged client/mysql.cc: Auto merged client/mysql_upgrade.c: Auto merged client/mysqltest.c: Auto merged extra/yassl/src/ssl.cpp: Auto merged mysql-test/lib/mtr_report.pl: Auto merged mysql-test/mysql-test-run-shell.sh: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/r/query_cache.result: Auto merged mysql-test/r/udf.result: Auto merged mysql-test/t/alter_table.test: Auto merged mysql-test/t/disabled.def: Auto merged mysql-test/t/limit.test: Auto merged mysql-test/t/mysql.test: Auto merged mysql-test/t/mysqldump.test: Auto merged mysql-test/t/query_cache.test: Auto merged mysql-test/t/system_mysql_db_fix30020.test: Auto merged mysql-test/t/udf.test: Auto merged mysql-test/t/view_grant.test: Auto merged mysys/Makefile.am: Auto merged scripts/mysql_fix_privilege_tables.sql: Auto merged sql/item.cc: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/item_timefunc.cc: Auto merged sql/mysql_priv.h: Auto merged sql/mysqld.cc: Auto merged sql/sql_handler.cc: Auto merged sql/sql_parse.cc: Auto merged sql-common/my_time.c: Auto merged sql/sql_table.cc: Auto merged extra/yassl/taocrypt/include/algebra.hpp: Remove fix as it conflicts with "import from yassl" and it's been fixed there sql/ha_ndbcluster.cc: Merge fix of warnings sql/sql_base.cc: Merge
74 lines
1.9 KiB
Plaintext
74 lines
1.9 KiB
Plaintext
#
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# Test of update and delete with limit
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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create table t1 (a int not null default 0 primary key, b int not null default 0);
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insert into t1 () values (); # Testing default values
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insert into t1 values (1,1),(2,1),(3,1);
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update t1 set a=4 where b=1 limit 1;
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select * from t1;
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update t1 set b=2 where b=1 limit 2;
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select * from t1;
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update t1 set b=4 where b=1;
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select * from t1;
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delete from t1 where b=2 limit 1;
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select * from t1;
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delete from t1 limit 1;
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select * from t1;
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drop table t1;
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create table t1 (i int);
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insert into t1 (i) values(1),(1),(1);
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delete from t1 limit 1;
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update t1 set i=2 limit 1;
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delete from t1 limit 0;
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update t1 set i=3 limit 0;
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select * from t1;
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drop table t1;
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# LIMIT 0
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select 0 limit 0;
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#
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# Test with DELETE, ORDER BY and limit (bug #1024)
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#
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CREATE TABLE t1(id int auto_increment primary key, id2 int, index(id2));
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INSERT INTO t1 (id2) values (0),(0),(0);
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DELETE FROM t1 WHERE id=1;
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INSERT INTO t1 SET id2=0;
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SELECT * FROM t1;
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DELETE FROM t1 WHERE id2 = 0 ORDER BY id LIMIT 1;
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# should have deleted WHERE id=2
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SELECT * FROM t1;
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DELETE FROM t1 WHERE id2 = 0 ORDER BY id desc LIMIT 1;
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SELECT * FROM t1;
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DROP TABLE t1;
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#
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# Bug#8023 - limit on UNION with from DUAL, causes syntax error
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#
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create table t1 (a integer);
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insert into t1 values (1);
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# both queries must return one row
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select 1 as a from t1 union all select 1 from dual limit 1;
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(select 1 as a from t1) union all (select 1 from dual) limit 1;
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drop table t1;
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#
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# Bug #21787: COUNT(*) + ORDER BY + LIMIT returns wrong result
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#
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create table t1 (a int);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7);
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explain select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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explain select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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drop table t1;
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# End of 4.1 tests
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