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MDEV-4677 GROUP_CONCAT not showing any output with group_concat_max_len >= 4Gb

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don't allow group_concat_max_len values >= 4Gb
(they never worked anyway)
This commit is contained in:
Sergei Golubchik
2020-11-11 15:51:18 +01:00
parent e189faf0b3
commit f6e91552f0
10 changed files with 41 additions and 18 deletions
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2
sql/field.cc
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@ -8255,7 +8255,7 @@ int Field_blob::store(const char *from,uint length,CHARSET_INFO *cs)
DBUG_ASSERT(length <= max_data_length());
new_length= length;
copy_length= (uint)MY_MIN(UINT_MAX,table->in_use->variables.group_concat_max_len);
copy_length= table->in_use->variables.group_concat_max_len;
if (new_length > copy_length)
{
new_length= Well_formed_prefix(cs,