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Fix bug #12537 UNION produces longtext instead of varchar

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Item::tmp_table_field_from_field_type() and create_tmp_field_from_item()
was converting string field to blob depending on byte-wise length instead of
character length, which results in converting valid varchar string with
length == 86 to longtext.

Made that functions above take into account max width of character when
converting string fields to blobs.
This commit is contained in:
evgen@moonbone.local
2005-08-30 16:19:53 +04:00
parent 6e84ca33d9
commit d76f9471cb
4 changed files with 22 additions and 3 deletions
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9
mysql-test/t/create.test
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@@ -492,6 +492,15 @@ create table t1(t1.name int);
create table t2(test.t2.name int);
drop table t1,t2;
#
# Bug #12537: UNION produces longtext instead of varchar
#
CREATE TABLE t1 (f1 VARCHAR(255) CHARACTER SET utf8);
CREATE TABLE t2 AS SELECT LEFT(f1,86) AS f2 FROM t1 UNION SELECT LEFT(f1,86)
AS f2 FROM t1;
DESC t2;
DROP TABLE t1,t2;
#
# Bug#11028: Crash on create table like
#