diff options
Diffstat (limited to 'sql/field.h')
| -rw-r--r-- | sql/field.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sql/field.h b/sql/field.h index 656dd9a592d..eb96304c1f3 100644 --- a/sql/field.h +++ b/sql/field.h @@ -73,6 +73,9 @@ public: virtual void set_default() { memcpy(ptr, ptr + table->rec_buff_length, pack_length()); + if (null_ptr) + *null_ptr= ((*null_ptr & (uchar) ~null_bit) | + null_ptr[table->rec_buff_length] & null_bit); } virtual bool binary() const { return 1; } virtual bool zero_pack() const { return 1; } @@ -93,12 +96,12 @@ public: virtual int key_cmp(const byte *str, uint length) { return cmp(ptr,(char*) str); } virtual uint decimals() const { return 0; } - virtual void sql_type(String &str) const =0; /* Caller beware: sql_type can change str.Ptr, so check ptr() to see if it changed if you are using your own buffer in str and restore it with set() if needed */ + virtual void sql_type(String &str) const =0; virtual uint size_of() const =0; /* For new field */ inline bool is_null(uint row_offset=0) { return null_ptr ? (null_ptr[row_offset] & null_bit ? 1 : 0) : table->null_row; } |