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MDEV-19612 Split ALTER related data type specific code in sql_table.cc to Type_handler

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This commit is contained in:
Alexander Barkov
2019-05-28 15:50:11 +04:00
parent d1d6fe9abf
commit f021317ae1
7 changed files with 173 additions and 32 deletions
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71
sql/sql_type.cc
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@@ -8514,6 +8514,77 @@ Type_handler_timestamp_common::Item_param_val_native(THD *thd,
}
/***************************************************************************/
bool Type_handler::validate_implicit_default_value(THD *thd,
const Column_definition &def) const
{
DBUG_EXECUTE_IF("validate_implicit_default_value_error", return true;);
return false;
}
bool Type_handler_date_common::validate_implicit_default_value(THD *thd,
const Column_definition &def) const
{
return thd->variables.sql_mode & MODE_NO_ZERO_DATE;
}
bool Type_handler_datetime_common::validate_implicit_default_value(THD *thd,
const Column_definition &def) const
{
return thd->variables.sql_mode & MODE_NO_ZERO_DATE;
}
/***************************************************************************/
const Name & Type_handler_row::default_value() const
{
DBUG_ASSERT(0);
static Name def(STRING_WITH_LEN(""));
return def;
}
const Name & Type_handler_numeric::default_value() const
{
static Name def(STRING_WITH_LEN("0"));
return def;
}
const Name & Type_handler_string_result::default_value() const
{
static Name def(STRING_WITH_LEN(""));
return def;
}
const Name & Type_handler_time_common::default_value() const
{
static Name def(STRING_WITH_LEN("00:00:00"));
return def;
}
const Name & Type_handler_date_common::default_value() const
{
static Name def(STRING_WITH_LEN("0000-00-00"));
return def;
}
const Name & Type_handler_datetime_common::default_value() const
{
static Name def(STRING_WITH_LEN("0000-00-00 00:00:00"));
return def;
}
const Name & Type_handler_timestamp_common::default_value() const
{
static Name def(STRING_WITH_LEN("0000-00-00 00:00:00"));
return def;
}
/***************************************************************************/
LEX_CSTRING Charset::collation_specific_name() const
{
/*