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Bug#35796 SHOW CREATE TABLE and default value for BIT field

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show default value for BIT field in printable format


mysql-test/r/type_bit.result:
  Bug#35796 SHOW CREATE TABLE and default value for BIT field
  test result
mysql-test/t/type_bit.test:
  Bug#35796 SHOW CREATE TABLE and default value for BIT field
  test case
sql/item.cc:
  Bug#35796 SHOW CREATE TABLE and default value for BIT field
  issue an error if BIN|HEX deafult value is empty value
  (behaviour like for INT fields)
This commit is contained in:
Sergey Glukhov
2008-12-09 13:53:23 +04:00
parent 695a2fd90e
commit cbb368aa88
4 changed files with 48 additions and 3 deletions
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18
sql/sql_show.cc
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@ -798,7 +798,7 @@ static bool get_field_default_value(THD *thd, TABLE *table,
{
bool has_default;
bool has_now_default;
enum enum_field_types field_type= field->type();
/*
We are using CURRENT_TIMESTAMP instead of NOW because it is
more standard
@ -806,7 +806,7 @@ static bool get_field_default_value(THD *thd, TABLE *table,
has_now_default= table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_UN_FIELD;
has_default= (field->type() != FIELD_TYPE_BLOB &&
has_default= (field_type != FIELD_TYPE_BLOB &&
!(field->flags & NO_DEFAULT_VALUE_FLAG) &&
field->unireg_check != Field::NEXT_NUMBER &&
!((thd->variables.sql_mode & (MODE_MYSQL323 | MODE_MYSQL40))
@ -821,7 +821,19 @@ static bool get_field_default_value(THD *thd, TABLE *table,
{ // Not null by default
char tmp[MAX_FIELD_WIDTH];
String type(tmp, sizeof(tmp), field->charset());
field->val_str(&type);
if (field_type == MYSQL_TYPE_BIT)
{
longlong dec= field->val_int();
char *ptr= longlong2str(dec, tmp + 2, 2);
uint32 length= (uint32) (ptr - tmp);
tmp[0]= 'b';
tmp[1]= '\'';
tmp[length]= '\'';
type.length(length + 1);
quoted= 0;
}
else
field->val_str(&type);
if (type.length())
{
String def_val;