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ALTER TABLE ... DROP COLUMN sys_start

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update all unique keys, not just PK
This commit is contained in:
Sergei Golubchik
2018-02-09 17:30:20 +01:00
parent dfd42ed990
commit 4fd48678ae
4 changed files with 30 additions and 64 deletions
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12
sql/sql_table.cc
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@ -8260,9 +8260,10 @@ mysql_prepare_alter_table(THD *thd, TABLE *table,
bool delete_index_stat= FALSE;
for (uint j=0 ; j < key_info->user_defined_key_parts ; j++,key_part++)
{
if (!key_part->field)
Field *kfield= key_part->field;
if (!kfield)
continue; // Wrong field (from UNIREG)
const char *key_part_name=key_part->field->field_name.str;
const char *key_part_name=kfield->field_name.str;
Create_field *cfield;
uint key_part_length;
@ -8284,7 +8285,8 @@ mysql_prepare_alter_table(THD *thd, TABLE *table,
if (table->s->primary_key == i)
modified_primary_key= TRUE;
delete_index_stat= TRUE;
dropped_key_part= key_part_name;
if (!(kfield->flags & VERS_SYSTEM_FIELD))
dropped_key_part= key_part_name;
continue; // Field is removed
}
key_part_length= key_part->length;
@ -8321,10 +8323,10 @@ mysql_prepare_alter_table(THD *thd, TABLE *table,
cfield->real_field_type() <= MYSQL_TYPE_BLOB) ?
blob_length_by_type(cfield->real_field_type()) :
cfield->length) <
key_part_length / key_part->field->charset()->mbmaxlen)))
key_part_length / kfield->charset()->mbmaxlen)))
key_part_length= 0; // Use whole field
}
key_part_length /= key_part->field->charset()->mbmaxlen;
key_part_length /= kfield->charset()->mbmaxlen;
key_parts.push_back(new Key_part_spec(&cfield->field_name,
key_part_length),
thd->mem_root);