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WL#874 "Extended LOAD DATA".

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Now one can use user variables as target for data loaded from file
(besides table's columns). Also LOAD DATA got new SET-clause in which
one can specify values for table columns as expressions.

For example the following is possible:
LOAD DATA INFILE 'words.dat' INTO TABLE t1 (a, @b) SET c = @b + 1;

This patch also implements new way of replicating LOAD DATA.
Now we do it similarly to other queries.
We store LOAD DATA query in new Execute_load_query event
(which is last in the sequence of events representing LOAD DATA).
When we are executing this event we simply rewrite part of query which
holds name of file (we use name of temporary file) and then execute it
as usual query. In the beggining of this sequence we use Begin_load_query
event which is almost identical to Append_file event
This commit is contained in:
dlenev@brandersnatch.localdomain
2005-03-16 04:32:47 +03:00
parent 3f6fdabe4f
commit f169114042
69 changed files with 1528 additions and 579 deletions
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27
mysql-test/r/mysqlbinlog.result
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@ -9,7 +9,6 @@ load data infile '../../std_data/words.dat' into table t1;
load data infile '../../std_data/words.dat' into table t1;
load data infile '../../std_data/words.dat' into table t1;
load data infile '../../std_data/words.dat' into table t1;
load data infile '../../std_data/words.dat' into table t1;
insert into t1 values ("Alas");
flush logs;
@ -32,11 +31,14 @@ insert into t1 values ("abirvalg");
SET INSERT_ID=1;
SET TIMESTAMP=1000000000;
insert into t2 values ();
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-1-0' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-2-0' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-3-0' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-4-0' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-5-0' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-1-0' INTO table t1;
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-2-0' INTO table t1;
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-3-0' INTO table t1;
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-4-0' INTO table t1;
ROLLBACK;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
@ -91,11 +93,14 @@ insert into t1 values ("abirvalg");
SET INSERT_ID=1;
SET TIMESTAMP=1000000000;
insert into t2 values ();
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-1-1' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-2-1' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-3-1' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-4-1' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
LOAD DATA LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/words.dat-5-1' INTO TABLE `t1` FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\\' LINES TERMINATED BY '\n' STARTING BY '' (word);
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-1-2' INTO table t1;
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-2-2' INTO table t1;
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-3-2' INTO table t1;
SET TIMESTAMP=1000000000;
load data LOCAL INFILE 'MYSQL_TEST_DIR/var/tmp/SQL_LOAD_MB-4-2' INTO table t1;
ROLLBACK;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;