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Code Activity

fixed bug #910 (right type of ifnull function)

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mysql-test/r/create.result:
  added test for bug #910 (right type of ifnull function)
mysql-test/t/create.test:
  added test for bug #910 (right type of ifnull function)
sql/field.h:
  added new constructors of Field_decimal, Field_tiny, Field_short, Field_float,
  Field_null, Field_year
  for using in Item::tmp_table_field_from_field_type
sql/item.cc:
  added Item::tmp_table_field_from_field_type
sql/item.h:
  added Item::tmp_table_field_from_field_type
This commit is contained in:
unknown
2003-08-27 19:11:54 -04:00
parent 6496a0dd14
commit a73058a77c
7 changed files with 202 additions and 0 deletions
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29
sql/field.h
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@ -305,6 +305,11 @@ public:
unireg_check_arg, field_name_arg, table_arg,
dec_arg, zero_arg,unsigned_arg)
{}
Field_decimal(uint32 len_arg,bool maybe_null_arg, const char *field_name_arg,
struct st_table *table_arg,bool unsigned_arg)
:Field_num((char*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0,0,
NONE, field_name_arg, table_arg,0,0,unsigned_arg)
{}
enum_field_types type() const { return FIELD_TYPE_DECIMAL;}
enum ha_base_keytype key_type() const
{ return zerofill ? HA_KEYTYPE_BINARY : HA_KEYTYPE_NUM; }
@ -334,6 +339,11 @@ public:
unireg_check_arg, field_name_arg, table_arg,
0, zero_arg,unsigned_arg)
{}
Field_tiny(uint32 len_arg,bool maybe_null_arg, const char *field_name_arg,
struct st_table *table_arg,bool unsigned_arg)
:Field_num((char*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0,0,
NONE, field_name_arg, table_arg,0,0,unsigned_arg)
{}
enum Item_result result_type () const { return INT_RESULT; }
enum_field_types type() const { return FIELD_TYPE_TINY;}
enum ha_base_keytype key_type() const
@ -364,6 +374,11 @@ public:
unireg_check_arg, field_name_arg, table_arg,
0, zero_arg,unsigned_arg)
{}
Field_short(uint32 len_arg,bool maybe_null_arg, const char *field_name_arg,
struct st_table *table_arg,bool unsigned_arg)
:Field_num((char*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0,0,
NONE, field_name_arg, table_arg,0,0,unsigned_arg)
{}
enum Item_result result_type () const { return INT_RESULT; }
enum_field_types type() const { return FIELD_TYPE_SHORT;}
enum ha_base_keytype key_type() const
@ -497,6 +512,11 @@ public:
unireg_check_arg, field_name_arg, table_arg,
dec_arg, zero_arg,unsigned_arg)
{}
Field_float(uint32 len_arg, bool maybe_null_arg, const char *field_name_arg,
struct st_table *table_arg, uint8 dec_arg)
:Field_num((char*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0, (uint) 0,
NONE, field_name_arg, table_arg,dec_arg,0,0)
{}
enum_field_types type() const { return FIELD_TYPE_FLOAT;}
enum ha_base_keytype key_type() const { return HA_KEYTYPE_FLOAT; }
int store(const char *to,uint length,CHARSET_INFO *charset);
@ -558,6 +578,11 @@ public:
:Field_str(ptr_arg, len_arg, null, 1,
unireg_check_arg, field_name_arg, table_arg, cs)
{}
Field_null(uint32 len_arg, const char *field_name_arg,
struct st_table *table_arg, CHARSET_INFO *cs)
:Field_str((char*) 0, len_arg, null, 1,
NONE, field_name_arg, table_arg, cs)
{}
enum_field_types type() const { return FIELD_TYPE_NULL;}
int store(const char *to, uint length, CHARSET_INFO *cs) { null[0]=1; return 0; }
int store(double nr) { null[0]=1; return 0; }
@ -627,6 +652,10 @@ public:
:Field_tiny(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
unireg_check_arg, field_name_arg, table_arg, 1, 1)
{}
Field_year(uint32 len_arg,bool maybe_null_arg, const char *field_name_arg,
struct st_table *table_arg)
:Field_tiny(len_arg,maybe_null_arg,field_name_arg,table_arg,1)
{}
enum_field_types type() const { return FIELD_TYPE_YEAR;}
int store(const char *to,uint length,CHARSET_INFO *charset);
int store(double nr);