diff options
Diffstat (limited to 'mysql-test/t/sql_big_selects_func.test')
| -rw-r--r-- | mysql-test/t/sql_big_selects_func.test | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/mysql-test/t/sql_big_selects_func.test b/mysql-test/t/sql_big_selects_func.test new file mode 100644 index 00000000000..4aefda5e15e --- /dev/null +++ b/mysql-test/t/sql_big_selects_func.test @@ -0,0 +1,133 @@ +############# mysql-test\t\sql_big_selects_func.test ###################### +# # +# Variable Name: sql_big_selects # +# Scope: SESSION # +# Access Type: Dynamic # +# Data Type: BOOLEAN # +# Default Value: 1 TRUE # +# Values: 1 TRUE, 0 FALSE # +# # +# # +# Creation Date: 2008-02-25 # +# Author: Sharique Abdullah # +# # +# Description: Test Cases of Dynamic System Variable "sql_big_selects" # +# that checks behavior of this variable in the following ways# +# * Functionality based on different values # +# # +# Reference: http://dev.mysql.com/doc/refman/5.1/en/set-option.html # +# # +########################################################################### + +--echo ** Setup ** +--echo +# +# Setup +# + +SET @session_sql_big_selects = @@SESSION.sql_big_selects; +SET @session_max_join_size = @@SESSION.max_join_size; +SET @global_max_join_size = @@GLOBAL.max_join_size; +SET SQL_MAX_JOIN_SIZE=9; + +# +# Create tables +# + +CREATE TEMPORARY TABLE t1(a varchar(20) not null, b varchar(20)); +CREATE TEMPORARY TABLE t2(a varchar(20) null, b varchar(20)); + +INSERT INTO t1 VALUES('aa','bb'); +INSERT INTO t1 VALUES('aa1','bb'); +INSERT INTO t1 VALUES('aa2','bb'); +INSERT INTO t1 VALUES('aa3','bb'); +INSERT INTO t1 VALUES('aa4','bb'); + +INSERT INTO t2 VALUES('aa','bb'); +INSERT INTO t2 VALUES('aa1','bb'); +INSERT INTO t2 VALUES('aa2','bb'); +INSERT INTO t2 VALUES('aa3','bb'); +INSERT INTO t2 VALUES('aa4','bb'); + +--echo '#--------------------FN_DYNVARS_154_01-------------------------#' +# +# Testing fail condition +# + +--echo Expected error "Too big select" +--error ER_TOO_BIG_SELECT +SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.a; +--echo Expected error The SELECT would examine more than MAX_JOIN_SIZE rows. + +--echo '#--------------------FN_DYNVARS_154_02-------------------------#' +# +# Testing pass conditions +# + +SET SESSION SQL_BIG_SELECTS = 1; + +SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.a; +--echo This should work + +SET SESSION SQL_BIG_SELECTS = 0; + +DELETE FROM t2 WHERE a = 'aa4'; +SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.a; +--echo This should work + +--echo '#--------------------FN_DYNVARS_154_03-------------------------#' +# +# Session data integrity check +# + +--echo ** Connecting con_int1 using root ** +connect (con_int1,localhost,root,,); + +--echo ** Connection con_int1 ** +connection con_int1; + +SELECT @@SESSION.sql_big_selects; +--echo 1 Expected +SET SESSION sql_big_selects = 0; + +--echo ** Connecting con_int2 using root ** +connect (con_int2,localhost,root,,); + +--echo ** Connection con_int2 ** +connection con_int2; + +SELECT @@SESSION.sql_big_selects; +--echo 1 Expected + +SET SESSION sql_big_selects = 1; + +--echo ** Connection con_int1 ** +connection con_int1; + +SELECT @@SESSION.sql_big_selects; +--echo 0 Expected + +--echo ** Connection con_int2 ** +connection con_int2; + +SELECT @@SESSION.sql_big_selects; +--echo 1 Expected + +--echo ** Connection default ** +connection default; + +--echo Disconnecting Connections con_int1, con_int2 +disconnect con_int1; +disconnect con_int2; + +# +# Cleanup +# + + +SET @@SESSION.sql_big_selects = @session_sql_big_selects; +SET @@SESSION.max_join_size = @session_max_join_size; +SET @@GLOBAL.max_join_size = @global_max_join_size; + +DROP TABLE t1; +DROP TABLE t2; |