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Merge with 4.0.6

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BitKeeper/etc/ignore:
  auto-union
acinclude.m4:
  Auto merged
configure.in:
  Auto merged
heap/hp_delete.c:
  Auto merged
heap/hp_scan.c:
  Auto merged
include/my_base.h:
  Auto merged
libmysql/libmysql.c:
  Auto merged
libmysqld/lib_sql.cc:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/mi_rnext_same.c:
  Auto merged
myisam/sort.c:
  Auto merged
mysql-test/r/alter_table.result:
  Auto merged
mysql-test/r/distinct.result:
  Auto merged
mysql-test/r/func_math.result:
  Auto merged
mysql-test/r/group_by.result:
  Auto merged
mysql-test/r/innodb.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/t/group_by.test:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysys/hash.c:
  Auto merged
sql/field.h:
  Auto merged
sql/field_conv.cc:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/opt_sum.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/set_var.h:
  Auto merged
sql/sql_analyse.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_udf.cc:
  Auto merged
sql/structs.h:
  Auto merged
sql/uniques.cc:
  Auto merged
strings/strto.c:
  Auto merged
vio/vio.c:
  Auto merged
BitKeeper/triggers/post-commit:
  Add changeset to commit messages
sql-bench/crash-me.sh:
  Use version from 4.0
sql-bench/server-cfg.sh:
  Use version from 4.0
This commit is contained in:
unknown 2002-12-05 19:38:42 +02:00
commit 6d33f73416
88 changed files with 2090 additions and 1229 deletions
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24
sql/field_conv.cc
View file

@ -122,8 +122,26 @@ set_field_to_null(Field *field)
}
/*
Set field to NULL or TIMESTAMP or to next auto_increment number
SYNOPSIS
set_field_to_null_with_conversions()
field Field to update
no_conversion Set to 1 if we should return 1 if field can't
take null values.
If set to 0 we will do store the 'default value'
if the field is a special field. If not we will
give an error.
RETURN VALUES
0 Field could take 0 or an automatic conversion was used
1 Field could not take NULL and no conversion was used.
If no_conversion was not set, an error message is printed
*/
bool
set_field_to_null_with_conversions(Field *field)
set_field_to_null_with_conversions(Field *field, bool no_conversions)
{
if (field->real_maybe_null())
{
@ -131,6 +149,8 @@ set_field_to_null_with_conversions(Field *field)
field->reset();
return 0;
}
if (no_conversions)
return 1;
/*
Check if this is a special type, which will get a special walue
@ -156,8 +176,6 @@ set_field_to_null_with_conversions(Field *field)
}
static void do_skip(Copy_field *copy __attribute__((unused)))
{
}