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Fix for bug #18643: crazy UNCOMPRESS().

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mysql-test/r/func_compress.result:
  Fix for bug #18643: crazy UNCOMPRESS().
    - test-case
mysql-test/t/func_compress.test:
  Fix for bug #18643: crazy UNCOMPRESS().
    - test-case
sql/item_strfunc.cc:
  Fix for bug #18643: crazy UNCOMPRESS().
    - set null_value.
This commit is contained in:
unknown
2006-04-13 16:19:21 +05:00
parent d7caa2a02a
commit 5c87b55f7e
3 changed files with 17 additions and 0 deletions
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7
mysql-test/r/func_compress.result
View File

@ -72,3 +72,10 @@ set @@max_allowed_packet=1048576*100;
select compress(repeat('aaaaaaaaaa', IF(XXX, 10, 10000000))) is null;
compress(repeat('aaaaaaaaaa', IF(XXX, 10, 10000000))) is null
0
create table t1(a blob);
insert into t1 values(NULL), (compress('a'));
select uncompress(a), uncompressed_length(a) from t1;
uncompress(a) uncompressed_length(a)
NULL NULL
a 1
drop table t1;

9
mysql-test/t/func_compress.test
View File

@ -45,4 +45,13 @@ set @@max_allowed_packet=1048576*100;
--replace_result "''" XXX "'1'" XXX
eval select compress(repeat('aaaaaaaaaa', IF('$LOW_MEMORY', 10, 10000000))) is null;
#
# Bug #18643: problem with null values
#
create table t1(a blob);
insert into t1 values(NULL), (compress('a'));
select uncompress(a), uncompressed_length(a) from t1;
drop table t1;
# End of 4.1 tests