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Merge 10.4 into 10.5

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This commit is contained in:
Marko Mäkelä
2021-01-25 12:44:24 +02:00
parent 5adcb2e7b8 3467f63764
commit 961c7938bb
62 changed files with 1128 additions and 283 deletions
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105
sql/sql_show.cc
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@ -5038,7 +5038,8 @@ public:
Sql_condition::enum_warning_level *level,
const char* msg, Sql_condition ** cond_hdl)
{
if (sql_errno == ER_TRG_NO_DEFINER || sql_errno == ER_TRG_NO_CREATION_CTX)
if (sql_errno == ER_TRG_NO_DEFINER || sql_errno == ER_TRG_NO_CREATION_CTX
|| sql_errno == ER_PARSE_ERROR)
return true;
if (*level != Sql_condition::WARN_LEVEL_ERROR)
@ -8476,55 +8477,64 @@ end:
}
static int optimize_schema_tables_memory_usage(TABLE_LIST *table_list)
bool optimize_schema_tables_memory_usage(List<TABLE_LIST> &tables)
{
TABLE *table= table_list->table;
THD *thd=table->in_use;
if (!table->is_created())
List_iterator<TABLE_LIST> tli(tables);
while (TABLE_LIST *table_list= tli++)
{
TMP_TABLE_PARAM *p= table_list->schema_table_param;
TMP_ENGINE_COLUMNDEF *from_recinfo, *to_recinfo;
DBUG_ASSERT(table->s->keys == 0);
DBUG_ASSERT(table->s->uniques == 0);
TABLE *table= table_list->table;
THD *thd=table->in_use;
uchar *cur= table->field[0]->ptr;
/* first recinfo could be a NULL bitmap, not an actual Field */
from_recinfo= to_recinfo= p->start_recinfo + (cur != table->record[0]);
for (uint i=0; i < table->s->fields; i++, from_recinfo++)
{
Field *field= table->field[i];
DBUG_ASSERT(field->vcol_info == 0);
DBUG_ASSERT(from_recinfo->length);
DBUG_ASSERT(from_recinfo->length == field->pack_length_in_rec());
if (bitmap_is_set(table->read_set, i))
{
field->move_field(cur);
*to_recinfo++= *from_recinfo;
cur+= from_recinfo->length;
}
else
{
field= new (thd->mem_root) Field_string(cur, 0, field->null_ptr,
field->null_bit, Field::NONE,
&field->field_name, field->dtcollation());
field->init(table);
field->field_index= i;
DBUG_ASSERT(field->pack_length_in_rec() == 0);
table->field[i]= field;
}
}
if ((table->s->reclength= (ulong)(cur - table->record[0])) == 0)
{
/* all fields were optimized away. Force a non-0-length row */
table->s->reclength= to_recinfo->length= 1;
to_recinfo++;
}
p->recinfo= to_recinfo;
if (!table_list->schema_table || !thd->fill_information_schema_tables())
continue;
// TODO switch from Aria to Memory if all blobs were optimized away?
if (instantiate_tmp_table(table, p->keyinfo, p->start_recinfo, &p->recinfo,
table_list->select_lex->options | thd->variables.option_bits))
return 1;
if (!table->is_created())
{
TMP_TABLE_PARAM *p= table_list->schema_table_param;
TMP_ENGINE_COLUMNDEF *from_recinfo, *to_recinfo;
DBUG_ASSERT(table->s->keys == 0);
DBUG_ASSERT(table->s->uniques == 0);
uchar *cur= table->field[0]->ptr;
/* first recinfo could be a NULL bitmap, not an actual Field */
from_recinfo= to_recinfo= p->start_recinfo + (cur != table->record[0]);
for (uint i=0; i < table->s->fields; i++, from_recinfo++)
{
Field *field= table->field[i];
DBUG_ASSERT(field->vcol_info == 0);
DBUG_ASSERT(from_recinfo->length);
DBUG_ASSERT(from_recinfo->length == field->pack_length_in_rec());
if (bitmap_is_set(table->read_set, i))
{
field->move_field(cur);
*to_recinfo++= *from_recinfo;
cur+= from_recinfo->length;
}
else
{
field= new (thd->mem_root) Field_string(cur, 0, field->null_ptr,
field->null_bit, Field::NONE,
&field->field_name, field->dtcollation());
field->init(table);
field->field_index= i;
DBUG_ASSERT(field->pack_length_in_rec() == 0);
table->field[i]= field;
}
}
if ((table->s->reclength= (ulong)(cur - table->record[0])) == 0)
{
/* all fields were optimized away. Force a non-0-length row */
table->s->reclength= to_recinfo->length= 1;
to_recinfo++;
}
p->recinfo= to_recinfo;
// TODO switch from Aria to Memory if all blobs were optimized away?
if (instantiate_tmp_table(table, p->keyinfo, p->start_recinfo, &p->recinfo,
table_list->select_lex->options | thd->variables.option_bits))
return 1;
}
}
return 0;
}
@ -8550,9 +8560,6 @@ bool optimize_schema_tables_reads(JOIN *join)
TABLE_LIST *table_list= tab->table->pos_in_table_list;
if (table_list->schema_table && thd->fill_information_schema_tables())
{
if (optimize_schema_tables_memory_usage(table_list))
DBUG_RETURN(1);
/* A value of 0 indicates a dummy implementation */
if (table_list->schema_table->fill_table == 0)
continue;