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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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34
mysql-test/r/rpl_flush_tables.result
View File

@ -14,27 +14,27 @@ rename table t1 to t5, t2 to t1;
flush no_write_to_binlog tables;
show binlog events;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 4 Format_desc 1 96 Server ver: SERVER_VERSION, Binlog ver: 4
master-bin.000001 96 Query 1 183 use `test`; create table t1 (a int)
master-bin.000001 183 Query 1 273 use `test`; insert into t1 values (10)
master-bin.000001 273 Query 1 360 use `test`; create table t2 (a int)
master-bin.000001 360 Query 1 470 use `test`; create table t3 (a int) engine=merge union(t1)
master-bin.000001 470 Query 1 557 use `test`; create table t4 (a int)
master-bin.000001 557 Query 1 652 use `test`; insert into t4 select * from t3
master-bin.000001 652 Query 1 747 use `test`; rename table t1 to t5, t2 to t1
master-bin.000001 # Format_desc 1 # Server ver: SERVER_VERSION, Binlog ver: 4
master-bin.000001 # Query 1 # use `test`; create table t1 (a int)
master-bin.000001 # Query 1 # use `test`; insert into t1 values (10)
master-bin.000001 # Query 1 # use `test`; create table t2 (a int)
master-bin.000001 # Query 1 # use `test`; create table t3 (a int) engine=merge union(t1)
master-bin.000001 # Query 1 # use `test`; create table t4 (a int)
master-bin.000001 # Query 1 # use `test`; insert into t4 select * from t3
master-bin.000001 # Query 1 # use `test`; rename table t1 to t5, t2 to t1
select * from t3;
a
flush tables;
show binlog events;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 4 Format_desc 1 96 Server ver: SERVER_VERSION, Binlog ver: 4
master-bin.000001 96 Query 1 183 use `test`; create table t1 (a int)
master-bin.000001 183 Query 1 273 use `test`; insert into t1 values (10)
master-bin.000001 273 Query 1 360 use `test`; create table t2 (a int)
master-bin.000001 360 Query 1 470 use `test`; create table t3 (a int) engine=merge union(t1)
master-bin.000001 470 Query 1 557 use `test`; create table t4 (a int)
master-bin.000001 557 Query 1 652 use `test`; insert into t4 select * from t3
master-bin.000001 652 Query 1 747 use `test`; rename table t1 to t5, t2 to t1
master-bin.000001 747 Query 1 823 use `test`; flush tables
master-bin.000001 # Format_desc 1 # Server ver: SERVER_VERSION, Binlog ver: 4
master-bin.000001 # Query 1 # use `test`; create table t1 (a int)
master-bin.000001 # Query 1 # use `test`; insert into t1 values (10)
master-bin.000001 # Query 1 # use `test`; create table t2 (a int)
master-bin.000001 # Query 1 # use `test`; create table t3 (a int) engine=merge union(t1)
master-bin.000001 # Query 1 # use `test`; create table t4 (a int)
master-bin.000001 # Query 1 # use `test`; insert into t4 select * from t3
master-bin.000001 # Query 1 # use `test`; rename table t1 to t5, t2 to t1
master-bin.000001 # Query 1 # use `test`; flush tables
select * from t3;
a