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-rw-r--r--sql/field_conv.cc24
1 files changed, 24 insertions, 0 deletions
diff --git a/sql/field_conv.cc b/sql/field_conv.cc
index 95ff985376d..3286695d733 100644
--- a/sql/field_conv.cc
+++ b/sql/field_conv.cc
@@ -309,6 +309,21 @@ static void do_field_string(Copy_field *copy)
}
+static void do_field_varbinary_pre50(Copy_field *copy)
+{
+ char buff[MAX_FIELD_WIDTH];
+ copy->tmp.set_quick(buff,sizeof(buff),copy->tmp.charset());
+ copy->from_field->val_str(&copy->tmp);
+
+ /* Use the same function as in 4.1 to trim trailing spaces */
+ uint length= my_lengthsp_8bit(&my_charset_bin, copy->tmp.c_ptr_quick(),
+ copy->from_field->field_length);
+
+ copy->to_field->store(copy->tmp.c_ptr_quick(), length,
+ copy->tmp.charset());
+}
+
+
static void do_field_int(Copy_field *copy)
{
longlong value= copy->from_field->val_int();
@@ -571,6 +586,15 @@ void (*Copy_field::get_copy_func(Field *to,Field *from))(Copy_field*)
if (from->result_type() == STRING_RESULT)
{
/*
+ Detect copy from pre 5.0 varbinary to varbinary as of 5.0 and
+ use special copy function that removes trailing spaces and thus
+ repairs data.
+ */
+ if (from->type() == MYSQL_TYPE_VAR_STRING && !from->has_charset() &&
+ to->type() == MYSQL_TYPE_VARCHAR && !to->has_charset())
+ return do_field_varbinary_pre50;
+
+ /*
If we are copying date or datetime's we have to check the dates
if we don't allow 'all' dates.
*/