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Bug #53088: mysqldump with -T & --default-character-set set

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truncates text/blob to 766 chars

mysqldump and SELECT ... INTO OUTFILE truncated long BLOB/TEXT
values to size of 766 bytes (MAX_FIELD_WIDTH or 255 * 3 + 1).

The select_export::send_data method has been modified to
reallocate a conversion buffer for long field data.
This commit is contained in:
Gleb Shchepa
2010-05-07 00:41:37 +04:00
parent 1132c35475
commit c4021e2d43
5 changed files with 121 additions and 2 deletions
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29
mysql-test/t/mysqldump.test
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@@ -2131,6 +2131,35 @@ SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a, b, c;
SET NAMES default;
DROP TABLE t1, t2;
###########################################################################
--echo #
--echo # Bug #53088: mysqldump with -T & --default-character-set set
--echo # truncates text/blob to 766 chars
--echo #
--echo # Also see outfile_loaddata.test
--echo #
CREATE TABLE t1 (a BLOB) CHARSET latin1;
CREATE TABLE t2 LIKE t1;
let $table= t1;
let $dir= $MYSQLTEST_VARDIR/tmp;
let $file= $dir/$table.txt;
let $length= 800;
--eval INSERT INTO t1 VALUES (REPEAT('.', $length))
--exec $MYSQL_DUMP --character-sets-dir=$CHARSETSDIR --default-character-set=latin1 --tab=$dir/ test $table
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
--eval LOAD DATA INFILE '$file' INTO TABLE t2 CHARACTER SET latin1
--remove_file $file
--echo # should be $length
SELECT LENGTH(a) FROM t2;
DROP TABLE t1, t2;
###########################################################################