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A lot of fixes to Precision math

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Mostly about precision/decimals of the results of the operations


include/decimal.h:
  decimal interface changed a little
sql/field.cc:
  a lot of precision/decimals related changes to the Field_new_decimal
sql/field.h:
  Field_new_decimal interface changed
sql/ha_ndbcluster.cc:
  f->precision should be used here
sql/item.cc:
  precision/decimals counting related changes
sql/item.h:
  precision/decimals counting related changes
sql/item_cmpfunc.cc:
  precision/decimals counting related changes
sql/item_cmpfunc.h:
  precision/decimals counting related changes
sql/item_func.cc:
  precision/decimals counting related changes
sql/item_func.h:
  precision/decimals counting related changes
sql/item_sum.cc:
  precision/decimals counting related changes
sql/item_sum.h:
  precision/decimals counting related changes
sql/my_decimal.cc:
  precision/decimals counting related changes
sql/my_decimal.h:
  precision/decimals counting related changes
sql/mysqld.cc:
  precision/decimals counting related changes
sql/set_var.cc:
  precision/decimals counting related changes
sql/sp_head.cc:
  dbug_decimal_print was replaced with dbug_decimal_as_string
sql/sql_class.h:
  div_precincrement variable added
sql/sql_parse.cc:
  precision/decimals counting related changes
sql/sql_select.cc:
  precision/decimals counting related changes
sql/sql_show.cc:
  Field::representation_length was removed
strings/decimal.c:
  decimal_actual_fraction was introduced
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
This commit is contained in:
unknown
2005-05-05 20:06:49 +05:00
parent c0f3557625
commit 6de14a23f7
23 changed files with 417 additions and 241 deletions
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5
sql/sql_select.cc
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@ -7781,9 +7781,8 @@ static Field *create_tmp_field_from_item(THD *thd, Item *item, TABLE *table,
new_field= item->make_string_field(table);
break;
case DECIMAL_RESULT:
new_field= new Field_new_decimal(item->max_length - (item->decimals?1:0),
maybe_null,
item->name, table, item->decimals);
new_field= new Field_new_decimal(item->max_length, maybe_null, item->name,
table, item->decimals, item->unsigned_flag);
break;
case ROW_RESULT:
default: