Replication using replicate-rewrite-db did not work for LOAD DATA INFILE.
Now is does. There was one place in the code that used current database
instead of the rewrite database.
In server we assume that datetime values stored in MYSQL_TIME struct
are normalized (and year is not greater than 9999), so we should
perform range checks in all places then we convert something to
MYSQL_TIME.
If we have DELETE with always true WHERE clause we should not use
optimized delete_all_rows() method for tables with DELETE triggers,
because in this case we will lose side-effect of deletion.
Added test cases for bug #6474.
sql_select.cc:
Fixed bug #6474. A wrong result was returned when a query
contained the same equality of the form field=const on
different AND levels.
binlog coordinates corresponding to the dump".
The good news is that now mysqldump can be used to get an online backup of InnoDB *which works for
point-in-time recovery and replication slave creation*. Formerly, mysqldump --master-data --single-transaction
used to call in fact mysqldump --master-data, so the dump was not an online dump (took big lock all time of dump).
The only lock which is now taken in this patch is at the beginning of the dump: mysqldump does:
FLUSH TABLES WITH READ LOCK; START TRANSACTION WITH CONSISTENT SNAPSHOT; SHOW MASTER STATUS; UNLOCK TABLES;
so the lock time is in fact the time FLUSH TABLES WITH READ LOCK takes to return (can be 0 or very long, if
a table is undergoing a huge update).
I have done some more minor changes listed in the paragraph of mysqldump.c.
WL#2237 "WITH CONSISTENT SNAPSHOT clause for START TRANSACTION":
it's a START TRANSACTION which additionally starts a consistent read on all
capable storage engine (i.e. InnoDB). So, can serve as a replacement for
BEGIN; SELECT * FROM some_innodb_table LIMIT 1; which starts a consistent read too.
DROP DATABASE failed because of file ext not in TYPELIB of known extensions.
General solution - construct a TYPELIB at runtime instead of a static list.
the result takes its charset/collation
attributes from the character string,
e.g. SELECT func(NULL, _latin2'string')
now returns a latin2 result. This is
done by introducing a new derivation
(aka coercibility) level DERIVATION_IGNORABLE,
which is used with Item_null.
2. 'Pure' NULL is now BINARY(0), not CHAR(0).
I.e. NULL is now more typeless.
Bug #6479 ALTER TABLE ... changing charset fails for TEXT columns
Fix: use do_conv_blob rather than do_copy_blob
if the column's character sets are different.
1) fix so that missing blob tables don't prevent table from being
dropped
2) decrease size of blob part if record length exceeds max length
3) add test case for table wo/ corresponding blob table
4) init scan counters when sending scan_tabreq
