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MDEV-9395 Add Type_handler::Item_decimal_scale() and Item_divisor_precision_increment()

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This commit is contained in:
Alexander Barkov
2017-04-29 21:34:57 +04:00
parent ea18b11235
commit 7a19c59c00
4 changed files with 65 additions and 29 deletions
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30
sql/sql_type.cc
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@ -3696,6 +3696,36 @@ uint Type_handler_string_result::Item_temporal_precision(Item *item,
/***************************************************************************/
uint Type_handler::Item_decimal_scale(const Item *item) const
{
return item->decimals < NOT_FIXED_DEC ?
item->decimals :
MY_MIN(item->max_length, DECIMAL_MAX_SCALE);
}
uint Type_handler_temporal_result::
Item_decimal_scale_with_seconds(const Item *item) const
{
return item->decimals < NOT_FIXED_DEC ?
item->decimals :
TIME_SECOND_PART_DIGITS;
}
uint Type_handler::Item_divisor_precision_increment(const Item *item) const
{
return item->decimals;
}
uint Type_handler_temporal_result::
Item_divisor_precision_increment_with_seconds(const Item *item) const
{
return item->decimals < NOT_FIXED_DEC ?
item->decimals :
TIME_SECOND_PART_DIGITS;
}
/***************************************************************************/
bool Type_handler_real_result::
subquery_type_allows_materialization(const Item *inner,
const Item *outer) const