diff options
Diffstat (limited to 'sql/field.cc')
| -rw-r--r-- | sql/field.cc | 198 |
1 files changed, 123 insertions, 75 deletions
diff --git a/sql/field.cc b/sql/field.cc index 61566d8281c..9a125a301b3 100644 --- a/sql/field.cc +++ b/sql/field.cc @@ -57,7 +57,7 @@ const char field_separator=','; ((ulong) ((LL(1) << min(arg, 4) * 8) - LL(1))) #define ASSERT_COLUMN_MARKED_FOR_READ DBUG_ASSERT(!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))) -#define ASSERT_COLUMN_MARKED_FOR_WRITE DBUG_ASSERT(!table || (!table->write_set || bitmap_is_set(table->write_set, field_index))) +#define ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED DBUG_ASSERT(!table || (!table->write_set || bitmap_is_set(table->write_set, field_index) || bitmap_is_set(table->vcol_set, field_index))) /* Rules for merging different types of fields in UNION @@ -1284,7 +1284,7 @@ static bool test_if_real(const char *str,int length, CHARSET_INFO *cs) This is used for printing bit_fields as numbers while debugging. */ -String *Field::val_int_as_str(String *val_buffer, my_bool unsigned_val) +String *Field::val_int_as_str(String *val_buffer, bool unsigned_val) { ASSERT_COLUMN_MARKED_FOR_READ; CHARSET_INFO *cs= &my_charset_bin; @@ -1306,13 +1306,13 @@ String *Field::val_int_as_str(String *val_buffer, my_bool unsigned_val) Field::Field(uchar *ptr_arg,uint32 length_arg,uchar *null_ptr_arg, uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg) - :ptr(ptr_arg), null_ptr(null_ptr_arg), - table(0), orig_table(0), table_name(0), - field_name(field_name_arg), - key_start(0), part_of_key(0), part_of_key_not_clustered(0), - part_of_sortkey(0), unireg_check(unireg_check_arg), - field_length(length_arg), null_bit(null_bit_arg), - is_created_from_null_item(FALSE) + :ptr(ptr_arg), null_ptr(null_ptr_arg), table(0), orig_table(0), + table_name(0), field_name(field_name_arg), option_list(0), + option_struct(0), key_start(0), part_of_key(0), + part_of_key_not_clustered(0), part_of_sortkey(0), + unireg_check(unireg_check_arg), field_length(length_arg), + null_bit(null_bit_arg), is_created_from_null_item(FALSE), vcol_info(0), + stored_in_db(TRUE) { flags=null_ptr ? 0: NOT_NULL_FLAG; comment.str= (char*) ""; @@ -1536,9 +1536,9 @@ void Field::make_field(Send_field *field) } else field->org_table_name= field->db_name= ""; - if (orig_table && orig_table->alias) + if (orig_table && orig_table->alias.ptr()) { - field->table_name= orig_table->alias; + field->table_name= orig_table->alias.ptr(); field->org_col_name= field_name; } else @@ -1613,7 +1613,7 @@ longlong Field::convert_decimal2longlong(const my_decimal *val, int Field_num::store_decimal(const my_decimal *val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int err= 0; longlong i= convert_decimal2longlong(val, unsigned_flag, &err); return test(err | store(i, unsigned_flag)); @@ -1685,7 +1685,7 @@ void Field_num::make_field(Send_field *field) int Field_str::store_decimal(const my_decimal *d) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; double val; /* TODO: use decimal2string? */ int err= warn_if_overflow(my_decimal2double(E_DEC_FATAL_ERROR & @@ -1761,7 +1761,7 @@ bool Field::get_time(MYSQL_TIME *ltime) int Field::store_time(MYSQL_TIME *ltime, timestamp_type type_arg) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; char buff[MAX_DATE_STRING_REP_LENGTH]; uint length= (uint) my_TIME_to_str(ltime, buff); return store(buff, length, &my_charset_bin); @@ -1888,7 +1888,7 @@ void Field_decimal::overflow(bool negative) int Field_decimal::store(const char *from_arg, uint len, CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; char buff[STRING_BUFFER_USUAL_SIZE]; String tmp(buff,sizeof(buff), &my_charset_bin); const uchar *from= (uchar*) from_arg; @@ -2254,7 +2254,7 @@ int Field_decimal::store(const char *from_arg, uint len, CHARSET_INFO *cs) int Field_decimal::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; if (unsigned_flag && nr < 0) { overflow(1); @@ -2299,7 +2299,7 @@ int Field_decimal::store(double nr) int Field_decimal::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; char buff[22]; uint length, int_part; char fyllchar; @@ -2579,7 +2579,7 @@ void Field_new_decimal::set_value_on_overflow(my_decimal *decimal_value, bool Field_new_decimal::store_value(const my_decimal *decimal_value) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; DBUG_ENTER("Field_new_decimal::store_value"); #ifndef DBUG_OFF @@ -2624,7 +2624,7 @@ bool Field_new_decimal::store_value(const my_decimal *decimal_value) int Field_new_decimal::store(const char *from, uint length, CHARSET_INFO *charset_arg) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int err; my_decimal decimal_value; DBUG_ENTER("Field_new_decimal::store(char*)"); @@ -2691,7 +2691,7 @@ int Field_new_decimal::store(const char *from, uint length, int Field_new_decimal::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; my_decimal decimal_value; int err; DBUG_ENTER("Field_new_decimal::store(double)"); @@ -2726,7 +2726,7 @@ int Field_new_decimal::store(double nr) int Field_new_decimal::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; my_decimal decimal_value; int err; @@ -2748,7 +2748,7 @@ int Field_new_decimal::store(longlong nr, bool unsigned_val) int Field_new_decimal::store_decimal(const my_decimal *decimal_value) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; return store_value(decimal_value); } @@ -2970,7 +2970,7 @@ Field_new_decimal::unpack(uchar* to, int Field_tiny::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error; longlong rnd; @@ -2982,7 +2982,7 @@ int Field_tiny::store(const char *from,uint len,CHARSET_INFO *cs) int Field_tiny::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; nr=rint(nr); if (unsigned_flag) @@ -3025,7 +3025,7 @@ int Field_tiny::store(double nr) int Field_tiny::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; if (unsigned_flag) @@ -3145,7 +3145,7 @@ void Field_tiny::sql_type(String &res) const int Field_short::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int store_tmp; int error; longlong rnd; @@ -3166,7 +3166,7 @@ int Field_short::store(const char *from,uint len,CHARSET_INFO *cs) int Field_short::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; int16 res; nr=rint(nr); @@ -3218,7 +3218,7 @@ int Field_short::store(double nr) int Field_short::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; int16 res; @@ -3392,7 +3392,7 @@ void Field_short::sql_type(String &res) const int Field_medium::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int store_tmp; int error; longlong rnd; @@ -3406,7 +3406,7 @@ int Field_medium::store(const char *from,uint len,CHARSET_INFO *cs) int Field_medium::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; nr=rint(nr); if (unsigned_flag) @@ -3452,7 +3452,7 @@ int Field_medium::store(double nr) int Field_medium::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; if (unsigned_flag) @@ -3582,7 +3582,7 @@ void Field_medium::sql_type(String &res) const int Field_long::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; long store_tmp; int error; longlong rnd; @@ -3603,7 +3603,7 @@ int Field_long::store(const char *from,uint len,CHARSET_INFO *cs) int Field_long::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; int32 res; nr=rint(nr); @@ -3655,7 +3655,7 @@ int Field_long::store(double nr) int Field_long::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; int32 res; @@ -3829,7 +3829,7 @@ void Field_long::sql_type(String &res) const int Field_longlong::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; char *end; ulonglong tmp; @@ -3859,7 +3859,7 @@ int Field_longlong::store(const char *from,uint len,CHARSET_INFO *cs) int Field_longlong::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; longlong res; @@ -3911,7 +3911,7 @@ int Field_longlong::store(double nr) int Field_longlong::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; if (nr < 0) // Only possible error @@ -4137,7 +4137,7 @@ int Field_float::store(const char *from,uint len,CHARSET_INFO *cs) int Field_float::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= truncate(&nr, FLT_MAX); float j= (float)nr; @@ -4399,7 +4399,7 @@ int Field_double::store(const char *from,uint len,CHARSET_INFO *cs) int Field_double::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= truncate(&nr, DBL_MAX); #ifdef WORDS_BIGENDIAN @@ -4826,7 +4826,7 @@ timestamp_auto_set_type Field_timestamp::get_auto_set_type() const int Field_timestamp::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME l_time; my_time_t tmp= 0; int error; @@ -4889,7 +4889,7 @@ int Field_timestamp::store(double nr) int Field_timestamp::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME l_time; my_time_t timestamp= 0; int error; @@ -5188,7 +5188,7 @@ int Field_time::store_time(MYSQL_TIME *ltime, timestamp_type time_type) int Field_time::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; long tmp; int error= 0; if (nr > (double)TIME_MAX_VALUE) @@ -5226,7 +5226,7 @@ int Field_time::store(double nr) int Field_time::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; long tmp; int error= 0; if (nr < (longlong) -TIME_MAX_VALUE && !unsigned_val) @@ -5384,7 +5384,7 @@ void Field_time::sql_type(String &res) const int Field_year::store(const char *from, uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; char *end; int error; longlong nr= cs->cset->strntoull10rnd(cs, from, len, 0, &end, &error); @@ -5432,7 +5432,7 @@ int Field_year::store(double nr) int Field_year::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; if (nr < 0 || (nr >= 100 && nr <= 1900) || nr > 2155) { *ptr= 0; @@ -5507,7 +5507,7 @@ void Field_year::sql_type(String &res) const int Field_date::store(const char *from, uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME l_time; uint32 tmp; int error; @@ -5562,7 +5562,7 @@ int Field_date::store(double nr) int Field_date::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME not_used; int error; longlong initial_nr= nr; @@ -5741,7 +5741,7 @@ void Field_date::sql_type(String &res) const int Field_newdate::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; long tmp; MYSQL_TIME l_time; int error; @@ -5791,7 +5791,7 @@ int Field_newdate::store(double nr) int Field_newdate::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME l_time; longlong tmp; int error; @@ -5827,7 +5827,7 @@ int Field_newdate::store(longlong nr, bool unsigned_val) int Field_newdate::store_time(MYSQL_TIME *ltime,timestamp_type time_type) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; long tmp; int error= 0; if (time_type == MYSQL_TIMESTAMP_DATE || @@ -5974,7 +5974,7 @@ void Field_newdate::sql_type(String &res) const int Field_datetime::store(const char *from,uint len,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME time_tmp; int error; ulonglong tmp= 0; @@ -6027,7 +6027,7 @@ int Field_datetime::store(double nr) int Field_datetime::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; MYSQL_TIME not_used; int error; longlong initial_nr= nr; @@ -6065,7 +6065,7 @@ int Field_datetime::store(longlong nr, bool unsigned_val) int Field_datetime::store_time(MYSQL_TIME *ltime,timestamp_type time_type) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; longlong tmp; int error= 0; /* @@ -6368,7 +6368,7 @@ Field_longstr::report_if_important_data(const char *pstr, const char *end, int Field_string::store(const char *from,uint length,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; uint copy_length; const char *well_formed_error_pos; const char *cannot_convert_error_pos; @@ -6409,7 +6409,7 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs) int Field_str::store(double nr) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; char buff[DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE]; uint length; uint local_char_length= field_length / charset()->mbmaxlen; @@ -6705,8 +6705,7 @@ void Field_string::sql_type(String &res) const length= cs->cset->snprintf(cs,(char*) res.ptr(), res.alloced_length(), "%s(%d)", - ((type() == MYSQL_TYPE_VAR_STRING && - !thd->variables.new_mode) ? + (type() == MYSQL_TYPE_VAR_STRING ? (has_charset() ? "varchar" : "varbinary") : (has_charset() ? "char" : "binary")), (int) field_length / charset()->mbmaxlen); @@ -6858,7 +6857,7 @@ int Field_string::do_save_field_metadata(uchar *metadata_ptr) */ int Field_string::pack_cmp(const uchar *a, const uchar *b, uint length, - my_bool insert_or_update) + bool insert_or_update) { uint a_length, b_length; if (length > 255) @@ -6896,7 +6895,7 @@ int Field_string::pack_cmp(const uchar *a, const uchar *b, uint length, */ int Field_string::pack_cmp(const uchar *key, uint length, - my_bool insert_or_update) + bool insert_or_update) { uint row_length, local_key_length; uchar *end; @@ -7013,7 +7012,7 @@ int Field_varstring::do_save_field_metadata(uchar *metadata_ptr) int Field_varstring::store(const char *from,uint length,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; uint copy_length; const char *well_formed_error_pos; const char *cannot_convert_error_pos; @@ -7375,7 +7374,7 @@ Field_varstring::unpack(uchar *to, const uchar *from, int Field_varstring::pack_cmp(const uchar *a, const uchar *b, uint key_length_arg, - my_bool insert_or_update) + bool insert_or_update) { uint a_length, b_length; if (key_length_arg > 255) @@ -7396,7 +7395,7 @@ int Field_varstring::pack_cmp(const uchar *a, const uchar *b, int Field_varstring::pack_cmp(const uchar *b, uint key_length_arg, - my_bool insert_or_update) + bool insert_or_update) { uchar *a= ptr+ length_bytes; uint a_length= length_bytes == 1 ? (uint) *ptr : uint2korr(ptr); @@ -7677,7 +7676,7 @@ void Field_blob::put_length(uchar *pos, uint32 length) int Field_blob::store(const char *from,uint length,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; uint copy_length, new_length; const char *well_formed_error_pos; const char *cannot_convert_error_pos; @@ -8127,7 +8126,7 @@ const uchar *Field_blob::unpack(uchar *to, /* Keys for blobs are like keys on varchars */ int Field_blob::pack_cmp(const uchar *a, const uchar *b, uint key_length_arg, - my_bool insert_or_update) + bool insert_or_update) { uint a_length, b_length; if (key_length_arg > 255) @@ -8148,7 +8147,7 @@ int Field_blob::pack_cmp(const uchar *a, const uchar *b, uint key_length_arg, int Field_blob::pack_cmp(const uchar *b, uint key_length_arg, - my_bool insert_or_update) + bool insert_or_update) { uchar *a; uint a_length, b_length; @@ -8438,7 +8437,7 @@ void Field_enum::store_type(ulonglong value) int Field_enum::store(const char *from,uint length,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int err= 0; uint32 not_used; char buff[STRING_BUFFER_USUAL_SIZE]; @@ -8487,7 +8486,7 @@ int Field_enum::store(double nr) int Field_enum::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; if ((ulonglong) nr > typelib->count || nr == 0) { @@ -8656,7 +8655,7 @@ Field *Field_enum::new_field(MEM_ROOT *root, struct st_table *new_table, int Field_set::store(const char *from,uint length,CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; bool got_warning= 0; int err= 0; char *not_used; @@ -8696,7 +8695,7 @@ int Field_set::store(const char *from,uint length,CHARSET_INFO *cs) int Field_set::store(longlong nr, bool unsigned_val) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int error= 0; ulonglong max_nr; @@ -9015,7 +9014,7 @@ uint Field_bit::is_equal(Create_field *new_field) int Field_bit::store(const char *from, uint length, CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int delta; for (; length && !*from; from++, length--) // skip left 0's @@ -9437,7 +9436,7 @@ Field_bit_as_char::Field_bit_as_char(uchar *ptr_arg, uint32 len_arg, int Field_bit_as_char::store(const char *from, uint length, CHARSET_INFO *cs) { - ASSERT_COLUMN_MARKED_FOR_WRITE; + ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED; int delta; uchar bits= (uchar) (field_length & 7); @@ -9546,6 +9545,8 @@ void Create_field::init_for_tmp_table(enum_field_types sql_type_arg, ((decimals_arg & FIELDFLAG_MAX_DEC) << FIELDFLAG_DEC_SHIFT) | (maybe_null ? FIELDFLAG_MAYBE_NULL : 0) | (is_unsigned ? 0 : FIELDFLAG_DECIMAL)); + vcol_info= 0; + stored_in_db= TRUE; } @@ -9565,6 +9566,7 @@ void Create_field::init_for_tmp_table(enum_field_types sql_type_arg, @param fld_interval_list Interval list (if any) @param fld_charset Field charset @param fld_geom_type Field geometry type (if any) + @param fld_vcol_info Virtual column data @retval FALSE on success @@ -9577,17 +9579,20 @@ bool Create_field::init(THD *thd, char *fld_name, enum_field_types fld_type, uint fld_type_modifier, Item *fld_default_value, Item *fld_on_update_value, LEX_STRING *fld_comment, char *fld_change, List<String> *fld_interval_list, - CHARSET_INFO *fld_charset, uint fld_geom_type) + CHARSET_INFO *fld_charset, uint fld_geom_type, + Virtual_column_info *fld_vcol_info, + engine_option_value *create_opt) { uint sign_len, allowed_type_modifier= 0; ulong max_field_charlength= MAX_FIELD_CHARLENGTH; DBUG_ENTER("Create_field::init()"); - + field= 0; field_name= fld_name; def= fld_default_value; flags= fld_type_modifier; + option_list= create_opt; unireg_check= (fld_type_modifier & AUTO_INCREMENT_FLAG ? Field::NEXT_NUMBER : Field::NONE); decimals= fld_decimals ? (uint)atoi(fld_decimals) : 0; @@ -9608,6 +9613,33 @@ bool Create_field::init(THD *thd, char *fld_name, enum_field_types fld_type, interval_list.empty(); comment= *fld_comment; + vcol_info= fld_vcol_info; + stored_in_db= TRUE; + + /* Initialize data for a computed field */ + if ((uchar)fld_type == (uchar)MYSQL_TYPE_VIRTUAL) + { + DBUG_ASSERT(vcol_info && vcol_info->expr_item); + stored_in_db= vcol_info->is_stored(); + /* + Walk through the Item tree checking if all items are valid + to be part of the virtual column + */ + if (vcol_info->expr_item->walk(&Item::check_vcol_func_processor, 0, NULL)) + { + my_error(ER_VIRTUAL_COLUMN_FUNCTION_IS_NOT_ALLOWED, MYF(0), field_name); + DBUG_RETURN(TRUE); + } + + /* + Make a field created for the real type. + Note that regular and computed fields differ from each other only by + Field::vcol_info. It is is always NULL for a column that is not + computed. + */ + sql_type= fld_type= vcol_info->get_real_type(); + } + /* Set NO_DEFAULT_VALUE_FLAG if this field doesn't have a default value and it is NOT NULL, not an AUTO_INCREMENT field and not a TIMESTAMP. @@ -9897,7 +9929,7 @@ bool Create_field::init(THD *thd, char *fld_name, enum_field_types fld_type, } case MYSQL_TYPE_DECIMAL: DBUG_ASSERT(0); /* Was obsolete */ - } + } /* Remember the value of length */ char_length= length; @@ -10007,7 +10039,6 @@ uint pack_length_to_packflag(uint type) return 0; // This shouldn't happen } - Field *make_field(TABLE_SHARE *share, uchar *ptr, uint32 field_length, uchar *null_pos, uchar null_bit, uint pack_flag, @@ -10199,6 +10230,10 @@ Create_field::Create_field(Field *old_field,Field *orig_field) charset= old_field->charset(); // May be NULL ptr comment= old_field->comment; decimals= old_field->decimals(); + vcol_info= old_field->vcol_info; + stored_in_db= old_field->stored_in_db; + option_list= old_field->option_list; + option_struct= old_field->option_struct; /* Fix if the original table had 4 byte pointer blobs */ if (flags & BLOB_FLAG) @@ -10273,6 +10308,19 @@ Create_field::Create_field(Field *old_field,Field *orig_field) /** + Makes a clone of this object for ALTER/CREATE TABLE + + @param mem_root MEM_ROOT where to clone the field +*/ + +Create_field *Create_field::clone(MEM_ROOT *mem_root) const +{ + Create_field *res= new (mem_root) Create_field(*this); + return res; +} + + +/** maximum possible display length for blob. @return |