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to a single statement.
---
Bug#24795: SHOW PROFILE
Profiling is only partially functional on some architectures. Where
there is no getrusage() system call, presently Null values are
returned where it would be required. Notably, Windows needs some love
applied to make it as useful.
Syntax this adds:
SHOW PROFILES
SHOW PROFILE [types] [FOR QUERY n] [OFFSET n] [LIMIT n]
where "n" is an integer
and "types" is zero or many (comma-separated) of
"CPU"
"MEMORY" (not presently supported)
"BLOCK IO"
"CONTEXT SWITCHES"
"PAGE FAULTS"
"IPC"
"SWAPS"
"SOURCE"
"ALL"
It also adds a session variable (boolean) "profiling", set to "no"
by default, and (integer) profiling_history_size, set to 15 by
default.
This patch abstracts setting THDs' "proc_info" behind a macro that
can be used as a hook into the profiling code when profiling
support is compiled in. All future code in this line should use
that mechanism for setting thd->proc_info.
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Tests are now set to omit the statistics.
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Adds an Information_schema table, "profiling" for access to
"show profile" data.
---
Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-community-3--bug24795
into zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-community
---
Fix merge problems.
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Fixed one bug in the query_source being NULL.
Updated test results.
---
Include more thorough profiling tests.
Improve support for prepared statements.
Use session-specific query IDs, starting at zero.
---
Selecting from I_S.profiling is no longer quashed in profiling, as
requested by Giuseppe.
Limit the size of captured query text.
No longer log queries that are zero length.
147 lines
4.8 KiB
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147 lines
4.8 KiB
Text
drop table if exists t1,t2;
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drop view if exists v1,v2;
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drop function if exists f1;
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drop function if exists f2;
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use INFORMATION_SCHEMA;
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show tables;
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Tables_in_information_schema
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CHARACTER_SETS
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COLLATIONS
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COLLATION_CHARACTER_SET_APPLICABILITY
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COLUMNS
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COLUMN_PRIVILEGES
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KEY_COLUMN_USAGE
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PROFILING
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ROUTINES
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SCHEMATA
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SCHEMA_PRIVILEGES
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STATISTICS
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TABLES
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TABLE_CONSTRAINTS
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TABLE_PRIVILEGES
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TRIGGERS
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USER_PRIVILEGES
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VIEWS
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show tables from INFORMATION_SCHEMA like 'T%';
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Tables_in_information_schema (T%)
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TABLES
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TABLE_CONSTRAINTS
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TABLE_PRIVILEGES
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TRIGGERS
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create database `inf%`;
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create database mbase;
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use `inf%`;
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show tables;
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Tables_in_inf%
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grant all privileges on `inf%`.* to 'mysqltest_1'@'localhost';
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grant all privileges on `mbase`.* to 'mysqltest_1'@'localhost';
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create table t1 (f1 int);
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create function func1(curr_int int) returns int
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begin
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declare ret_val int;
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select max(f1) from t1 into ret_val;
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return ret_val;
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end|
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create view v1 as select f1 from t1 where f1 = func1(f1);
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create function func2() returns int return 1;
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use mbase;
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create procedure p1 ()
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begin
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select table_name from information_schema.key_column_usage
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order by table_name;
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end|
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create table t1
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(f1 int(10) unsigned not null,
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f2 varchar(100) not null,
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primary key (f1), unique key (f2));
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select * from information_schema.tables;
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call mbase.p1();
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call mbase.p1();
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call mbase.p1();
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use `inf%`;
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drop user mysqltest_1@localhost;
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drop table t1;
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select table_name, table_type, table_comment from information_schema.tables
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where table_schema='inf%' and func2();
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table_name table_type table_comment
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v1 VIEW View 'inf%.v1' references invalid table(s) or column(s) or function(s) or define
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select table_name, table_type, table_comment from information_schema.tables
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where table_schema='inf%' and func2();
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table_name table_type table_comment
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v1 VIEW View 'inf%.v1' references invalid table(s) or column(s) or function(s) or define
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drop view v1;
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drop function func1;
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drop function func2;
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drop database `inf%`;
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drop procedure mbase.p1;
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drop database mbase;
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use test;
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create table t1 (i int);
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create function f1 () returns int return (select max(i) from t1);
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create view v1 as select f1();
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create table t2 (id int);
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create function f2 () returns int return (select max(i) from t2);
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create view v2 as select f2();
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drop table t2;
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select table_name, table_type, table_comment from information_schema.tables
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where table_schema='test';
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table_name table_type table_comment
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t1 BASE TABLE
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v1 VIEW VIEW
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v2 VIEW View 'test.v2' references invalid table(s) or column(s) or function(s) or define
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drop table t1;
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select table_name, table_type, table_comment from information_schema.tables
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where table_schema='test';
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table_name table_type table_comment
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v1 VIEW View 'test.v1' references invalid table(s) or column(s) or function(s) or define
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v2 VIEW View 'test.v2' references invalid table(s) or column(s) or function(s) or define
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drop function f1;
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drop function f2;
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drop view v1, v2;
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create database testdb_1;
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create user testdb_1@localhost;
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grant all on testdb_1.* to testdb_1@localhost with grant option;
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create user testdb_2@localhost;
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grant all on test.* to testdb_2@localhost with grant option;
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use testdb_1;
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create table t1 (f1 char(4));
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create view v1 as select f1 from t1;
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grant insert on v1 to testdb_2@localhost;
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create table t3 (f1 char(4), f2 char(4));
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create view v3 as select f1,f2 from t3;
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grant insert(f1), insert(f2) on v3 to testdb_2@localhost;
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create view v2 as select f1 from testdb_1.v1;
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create view v4 as select f1,f2 from testdb_1.v3;
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revoke insert(f1) on v3 from testdb_2@localhost;
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show create view v4;
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ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
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show fields from v4;
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ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
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show fields from v2;
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Field Type Null Key Default Extra
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f1 char(4) YES NULL
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show fields from testdb_1.v1;
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Field Type Null Key Default Extra
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f1 char(4) YES NULL
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show create view v2;
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View Create View
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v2 CREATE ALGORITHM=UNDEFINED DEFINER=`testdb_2`@`localhost` SQL SECURITY DEFINER VIEW `test`.`v2` AS select `v1`.`f1` AS `f1` from `testdb_1`.`v1`
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show create view testdb_1.v1;
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ERROR 42000: SHOW VIEW command denied to user 'testdb_2'@'localhost' for table 'v1'
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select table_name from information_schema.columns a
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where a.table_name = 'v2';
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table_name
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v2
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select view_definition from information_schema.views a
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where a.table_name = 'v2';
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view_definition
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/* ALGORITHM=UNDEFINED */ select `v1`.`f1` AS `f1` from `testdb_1`.`v1`
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select view_definition from information_schema.views a
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where a.table_name = 'testdb_1.v1';
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view_definition
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select * from v2;
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ERROR HY000: View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
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drop view testdb_1.v1,v2, testdb_1.v3, v4;
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drop database testdb_1;
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drop user testdb_1@localhost;
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drop user testdb_2@localhost;
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