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MDEV-19686 Add method Type_handler::dyncol_type

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This commit is contained in:
Alexander Barkov
2019-06-04 12:44:24 +04:00
parent 7966258a64
commit ab190194cf
2 changed files with 58 additions and 75 deletions
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77
sql/item_strfunc.cc
View File

@ -4354,24 +4354,7 @@ bool Item_func_dyncol_create::prepare_arguments(THD *thd, bool force_names_arg)
uint valpos= i * 2 + 1;
DYNAMIC_COLUMN_TYPE type= defs[i].type;
if (type == DYN_COL_NULL)
switch (args[valpos]->field_type())
{
case MYSQL_TYPE_VARCHAR:
case MYSQL_TYPE_ENUM:
case MYSQL_TYPE_SET:
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_VAR_STRING:
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_GEOMETRY:
type= DYN_COL_STRING;
break;
default:
break;
}
type= args[valpos]->type_handler()->dyncol_type(args[valpos]);
if (type == DYN_COL_STRING &&
args[valpos]->type() == Item::FUNC_ITEM &&
((Item_func *)args[valpos])->functype() == DYNCOL_FUNC)
@ -4388,63 +4371,7 @@ bool Item_func_dyncol_create::prepare_arguments(THD *thd, bool force_names_arg)
uint valpos= i * 2 + 1;
DYNAMIC_COLUMN_TYPE type= defs[i].type;
if (type == DYN_COL_NULL) // auto detect
{
/*
We don't have a default here to ensure we get a warning if
one adds a new not handled MYSQL_TYPE_...
*/
switch (args[valpos]->field_type()) {
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_NEWDECIMAL:
type= DYN_COL_DECIMAL;
break;
case MYSQL_TYPE_TINY:
case MYSQL_TYPE_SHORT:
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_LONGLONG:
case MYSQL_TYPE_INT24:
case MYSQL_TYPE_YEAR:
case MYSQL_TYPE_BIT:
type= args[valpos]->unsigned_flag ? DYN_COL_UINT : DYN_COL_INT;
break;
case MYSQL_TYPE_FLOAT:
case MYSQL_TYPE_DOUBLE:
type= DYN_COL_DOUBLE;
break;
case MYSQL_TYPE_NULL:
type= DYN_COL_NULL;
break;
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_TIMESTAMP2:
case MYSQL_TYPE_DATETIME:
case MYSQL_TYPE_DATETIME2:
type= DYN_COL_DATETIME;
break;
case MYSQL_TYPE_DATE:
case MYSQL_TYPE_NEWDATE:
type= DYN_COL_DATE;
break;
case MYSQL_TYPE_TIME:
case MYSQL_TYPE_TIME2:
type= DYN_COL_TIME;
break;
case MYSQL_TYPE_VARCHAR:
case MYSQL_TYPE_ENUM:
case MYSQL_TYPE_SET:
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_VAR_STRING:
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_GEOMETRY:
type= DYN_COL_STRING;
break;
case MYSQL_TYPE_VARCHAR_COMPRESSED:
case MYSQL_TYPE_BLOB_COMPRESSED:
DBUG_ASSERT(0);
}
}
type= args[valpos]->type_handler()->dyncol_type(args[valpos]);
if (type == DYN_COL_STRING &&
args[valpos]->type() == Item::FUNC_ITEM &&
((Item_func *)args[valpos])->functype() == DYNCOL_FUNC)

56
sql/sql_type.h
View File

@ -27,6 +27,9 @@
#include "sql_time.h"
#include "sql_type_real.h"
#include "compat56.h"
C_MODE_START
#include <ma_dyncol.h>
C_MODE_END
class Field;
class Column_definition;
@ -3239,6 +3242,8 @@ public:
virtual protocol_send_type_t protocol_send_type() const= 0;
virtual Item_result result_type() const= 0;
virtual Item_result cmp_type() const= 0;
virtual enum_dynamic_column_type
dyncol_type(const Type_all_attributes *attr) const= 0;
virtual enum_mysql_timestamp_type mysql_timestamp_type() const
{
return MYSQL_TIMESTAMP_ERROR;
@ -3796,6 +3801,11 @@ public:
{
return ROW_RESULT;
}
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
DBUG_ASSERT(0);
return DYN_COL_NULL;
}
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const
{
@ -4148,6 +4158,10 @@ class Type_handler_real_result: public Type_handler_numeric
public:
Item_result result_type() const { return REAL_RESULT; }
Item_result cmp_type() const { return REAL_RESULT; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_DOUBLE;
}
virtual ~Type_handler_real_result() {}
const Type_handler *type_handler_for_comparison() const;
void Column_definition_reuse_fix_attributes(THD *thd,
@ -4233,6 +4247,10 @@ public:
}
Item_result result_type() const { return DECIMAL_RESULT; }
Item_result cmp_type() const { return DECIMAL_RESULT; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_DECIMAL;
}
virtual ~Type_handler_decimal_result() {};
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const
@ -4463,6 +4481,10 @@ class Type_handler_int_result: public Type_handler_numeric
public:
Item_result result_type() const { return INT_RESULT; }
Item_result cmp_type() const { return INT_RESULT; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return attr->unsigned_flag ? DYN_COL_UINT : DYN_COL_INT;
}
bool is_order_clause_position_type() const { return true; }
bool is_limit_clause_valid_type() const { return true; }
virtual ~Type_handler_int_result() {}
@ -4632,6 +4654,10 @@ public:
}
Item_result result_type() const { return STRING_RESULT; }
Item_result cmp_type() const { return STRING_RESULT; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_STRING;
}
CHARSET_INFO *charset_for_protocol(const Item *item) const;
virtual ~Type_handler_string_result() {}
const Type_handler *type_handler_for_comparison() const;
@ -5260,6 +5286,10 @@ public:
const Name name() const { return m_name_time; }
const Name &default_value() const;
enum_field_types field_type() const { return MYSQL_TYPE_TIME; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_TIME;
}
protocol_send_type_t protocol_send_type() const
{
return PROTOCOL_SEND_TIME;
@ -5426,6 +5456,10 @@ public:
const Name &default_value() const;
const Type_handler *type_handler_for_comparison() const;
enum_field_types field_type() const { return MYSQL_TYPE_DATE; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_DATE;
}
protocol_send_type_t protocol_send_type() const
{
return PROTOCOL_SEND_DATE;
@ -5526,6 +5560,10 @@ public:
const Name &default_value() const;
const Type_handler *type_handler_for_comparison() const;
enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_DATETIME;
}
protocol_send_type_t protocol_send_type() const
{
return PROTOCOL_SEND_DATETIME;
@ -5646,6 +5684,10 @@ public:
const Type_handler *type_handler_for_comparison() const;
const Type_handler *type_handler_for_native_format() const;
enum_field_types field_type() const { return MYSQL_TYPE_TIMESTAMP; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_DATETIME;
}
protocol_send_type_t protocol_send_type() const
{
return PROTOCOL_SEND_DATETIME;
@ -5843,6 +5885,10 @@ public:
virtual ~Type_handler_null() {}
const Name name() const { return m_name_null; }
enum_field_types field_type() const { return MYSQL_TYPE_NULL; }
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
return DYN_COL_NULL;
}
const Type_handler *type_handler_for_comparison() const;
const Type_handler *type_handler_for_tmp_table(const Item *item) const;
const Type_handler *type_handler_for_union(const Item *) const;
@ -6021,6 +6067,11 @@ class Type_handler_varchar_compressed: public Type_handler_varchar
public:
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
DBUG_ASSERT(0);
return DYN_COL_STRING;
}
};
@ -6148,6 +6199,11 @@ class Type_handler_blob_compressed: public Type_handler_blob
public:
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
enum_dynamic_column_type dyncol_type(const Type_all_attributes *attr) const
{
DBUG_ASSERT(0);
return DYN_COL_STRING;
}
};