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MDEV-29552 LEFT and RIGHT with big value for parameter 'len' >0 return empty value in view

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The code in max_length_for_string() erroneously returned 0
for huge numbers like 4294967295.

Rewriting the code in a more straightforward way.
This commit is contained in:
Alexander Barkov
2024-11-05 09:19:05 +04:00
parent b07258a0d5
commit c2bf1d4781
3 changed files with 35 additions and 2 deletions
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16
mysql-test/main/func_str.test
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@@ -2380,3 +2380,19 @@ DO OCT(-9223372036854775808);
--echo #
--echo # End of 10.5 tests
--echo #
--echo #
--echo # Start of 10.6 tests
--echo #
--echo #
--echo # MDEV-29552 LEFT and RIGHT with big value for parameter 'len' >0 return empty value in view
--echo #
create view v1 as select left('hello', 4294967295);
select * from v1;
drop view v1;
--echo #
--echo # End of 10.6 tests
--echo #