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MDEV-25872 InnoDB: Assertion failure in row_merge_read_clustered_index upon ALTER on table with indexed virtual columns

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- InnoDB fails to check DB_COMPUTE_VALUE_FAILED error in
row_merge_read_clustered_index() and wrongly asserts that
the buffer shouldn't be ran out of memory. Alter table
should give warning when the column value is being
truncated.
This commit is contained in:
Thirunarayanan Balathandayuthapani
2021-06-15 13:13:01 +05:30
parent 8c7d8b716c
commit 7229107e3e
7 changed files with 71 additions and 16 deletions
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8
sql/sql_table.cc
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@ -9680,9 +9680,17 @@ do_continue:;
if (use_inplace)
{
table->s->frm_image= &frm;
enum_check_fields save_count_cuted_fields= thd->count_cuted_fields;
/*
Set the truncated column values of thd as warning for alter table.
*/
thd->count_cuted_fields= CHECK_FIELD_WARN;
int res= mysql_inplace_alter_table(thd, table_list, table, altered_table,
&ha_alter_info, inplace_supported,
&target_mdl_request, &alter_ctx);
thd->count_cuted_fields= save_count_cuted_fields;
my_free(const_cast<uchar*>(frm.str));
if (res)