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ec919d7428
The idea is to use TABLE_LIST::lock_type for passing type of lock for
target table to mysql_load() instead of using LEX::lock_option
(which were rewritten by first subselect in SET clause).
This should also fix potential problem with LOAD DATA in SP
(it is important for them to have right lock_type in the table
list by the end of statement parsing).
mysql-test/r/loaddata.result:
Added nice test for LOAD DATA with subquery.
mysql-test/t/loaddata.test:
Added nice test for LOAD DATA with subquery.
sql/log_event.cc:
Now we don't pass type of lock for target table to mysql_load()
explicitly . Instead we use TABLE_LIST::lock_type for this table
which is already properly set here.
sql/mysql_priv.h:
Now we don't pass type of lock for target table to mysql_load()
explicitly . Instead we properly set TABLE_LIST::lock_type for
this table in parser.
sql/sql_load.cc:
Now we don't pass type of lock for target table to mysql_load()
explicitly . Instead we properly set TABLE_LIST::lock_type for
this table in parser.
sql/sql_parse.cc:
Now we don't pass type of lock for target table to mysql_load()
explicitly . Instead we properly set TABLE_LIST::lock_type for
this table in parser.
sql/sql_yacc.yy:
load_data:
Let us use TABLE_LIST::lock_type for passing type of lock for target
table to mysql_load() instead of using LEX::lock_option (which will
be rewritten by first subselect in SET clause).
76 lines
2.9 KiB
Text
76 lines
2.9 KiB
Text
#
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# Some simple test of load data
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#
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--disable_warnings
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drop table if exists t1, t2;
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--enable_warnings
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create table t1 (a date, b date, c date not null, d date);
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load data infile '../../std_data/loaddata1.dat' into table t1 fields terminated by ',';
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load data infile '../../std_data/loaddata1.dat' into table t1 fields terminated by ',' IGNORE 2 LINES;
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SELECT * from t1;
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truncate table t1;
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load data infile '../../std_data/loaddata1.dat' into table t1 fields terminated by ',' LINES STARTING BY ',' (b,c,d);
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SELECT * from t1;
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drop table t1;
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create table t1 (a text, b text);
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load data infile '../../std_data/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
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select concat('|',a,'|'), concat('|',b,'|') from t1;
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drop table t1;
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create table t1 (a int, b char(10));
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load data infile '../../std_data/loaddata3.dat' into table t1 fields terminated by '' enclosed by '' ignore 1 lines;
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select * from t1;
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truncate table t1;
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load data infile '../../std_data/loaddata4.dat' into table t1 fields terminated by '' enclosed by '' lines terminated by '' ignore 1 lines;
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# The empty line last comes from the end line field in the file
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select * from t1;
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drop table t1;
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#
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# Let us test extended LOAD DATA features
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#
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create table t1 (a int default 100, b int, c varchar(60));
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# we can do something like this
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load data infile '../../std_data/rpl_loaddata.dat' into table t1 (a, @b) set b=@b+10, c=concat("b=",@b);
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select * from t1;
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truncate table t1;
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# we can use filled fields in expressions
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# we also assigning NULL value to field with non-NULL default here
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load data infile '../../std_data/rpl_loaddata.dat' into table t1 (a, @b) set c= if(a is null,"oops",a);
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select * from t1;
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truncate table t1;
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# we even can use variables in set clause, and missed columns will be set
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# with default values
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set @c:=123;
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load data infile '../../std_data/rpl_loaddata.dat' into table t1 (@a, b) set c= if(@a is null,@c,b);
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select * from t1;
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# let us test side-effect of such load
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load data infile '../../std_data/rpl_loaddata.dat' into table t1 (@a, @b);
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select * from t1;
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select @a, @b;
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truncate table t1;
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# now going to test fixed field-row file format
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load data infile '../../std_data/loaddata5.dat' into table t1 fields terminated by '' enclosed by '' (a, b) set c="Wow";
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select * from t1;
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truncate table t1;
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# this also should work
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load data infile '../../std_data/loaddata5.dat' into table t1 fields terminated by '' enclosed by '' (a, b) set c=concat(a,"+",b,"+",@c,"+",b,"+",if(c is null,"NIL",c));
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select * from t1;
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# and this should bark
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--error 1409
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load data infile '../../std_data/loaddata5.dat' into table t1 fields terminated by '' enclosed by '' (a, @b);
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# Now let us test LOAD DATA with subselect
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create table t2 (num int primary key, str varchar(10));
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insert into t2 values (10,'Ten'), (15,'Fifteen');
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truncate table t1;
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load data infile '../../std_data/rpl_loaddata.dat' into table t1 (@dummy,@n) set a= @n, c= (select str from t2 where num=@n);
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select * from t1;
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# cleanup
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drop table t1, t2;
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