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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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26
mysql-test/r/rpl_temporary.result
View File

@ -38,19 +38,19 @@ f
7
show binlog events;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 4 Format_desc 1 96 Server ver: VERSION, Binlog ver: 4
master-bin.000001 96 Query 1 186 use `test`; drop table if exists t1,t2
master-bin.000001 186 Query 1 272 use `test`; create table t1(f int)
master-bin.000001 272 Query 1 358 use `test`; create table t2(f int)
master-bin.000001 358 Query 1 484 use `test`; insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)
master-bin.000001 484 Query 1 580 use `test`; create temporary table t3(f int)
master-bin.000001 580 Query 1 685 use `test`; insert into t3 select * from t1 where f<6
master-bin.000001 685 Query 1 781 use `test`; create temporary table t3(f int)
master-bin.000001 781 Query 1 883 use `test`; insert into t2 select count(*) from t3
master-bin.000001 883 Query 1 989 use `test`; insert into t3 select * from t1 where f>=4
master-bin.000001 989 Query 1 1076 use `test`; drop temporary table t3
master-bin.000001 1076 Query 1 1178 use `test`; insert into t2 select count(*) from t3
master-bin.000001 1178 Query 1 1265 use `test`; drop temporary table t3
master-bin.000001 # Format_desc 1 # Server ver: VERSION, Binlog ver: 4
master-bin.000001 # Query 1 # use `test`; drop table if exists t1,t2
master-bin.000001 # Query 1 # use `test`; create table t1(f int)
master-bin.000001 # Query 1 # use `test`; create table t2(f int)
master-bin.000001 # Query 1 # use `test`; insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)
master-bin.000001 # Query 1 # use `test`; create temporary table t3(f int)
master-bin.000001 # Query 1 # use `test`; insert into t3 select * from t1 where f<6
master-bin.000001 # Query 1 # use `test`; create temporary table t3(f int)
master-bin.000001 # Query 1 # use `test`; insert into t2 select count(*) from t3
master-bin.000001 # Query 1 # use `test`; insert into t3 select * from t1 where f>=4
master-bin.000001 # Query 1 # use `test`; drop temporary table t3
master-bin.000001 # Query 1 # use `test`; insert into t2 select count(*) from t3
master-bin.000001 # Query 1 # use `test`; drop temporary table t3
drop table t1, t2;
use test;
SET TIMESTAMP=1040323920;