Yes, \0 is ascii zero, but it must be converting the string \0 to the int.  It doesn't do any escape conversion, which is kind of idiotic. :D

I don't know what the LOAD DATA delimiter parser will do with a null character in the input.  It might fail.

--Justin

On Mon, Nov 2, 2015 at 7:39 PM, Roberto Spadim <roberto@spadim.com.br> wrote:
character ascii 0 ?
\0 \1 b'0' b'1' 0 1
don't work

i will test binary data

2015-11-03 0:26 GMT-02:00 Justin Swanhart <greenlion@gmail.com>:
Try \0 and 1  if you have only one bit to set. 

On Mon, Nov 2, 2015 at 5:56 PM, Roberto Spadim <roberto@spadim.com.br> wrote:
maybe 
enum_field_types type() const { return MYSQL_TYPE_BIT; }

if(field->type()==MYSQL_TYPE_BIT){
// convert string to unsigned long long 
}else{
// use normal field->store()
}

must try, but i didn't found how to store() with the "b'0'" representation or someting like it

2015-11-02 22:45 GMT-02:00 Roberto Spadim <roberto@spadim.com.br>:
maybe check if it's a BIT type at sql_load.cc and cast to bigint unsigned before field->store ? i think it's the easier patch, i don't know
i tryed any kind of file
the bit column only with with "SET bit_column=@some_variable+0" or anything to cast from "string" to "integers"

2015-11-02 22:40 GMT-02:00 Roberto Spadim <roberto@spadim.com.br>:

2015-11-02 22:28 GMT-02:00 Roberto Spadim <roberto@spadim.com.br>:
hi justing, but i always get 1
even when data file have "0" (character "0") at line

i'm reading the load data file:
that's something with field->store (i think)
field->store((char*) pos,length,read_info.read_charset);

field->store((char*) pos, length, read_info.read_charset);
i didn't checked yet store of bit field type






2015-11-02 22:15 GMT-02:00 Justin Swanhart <greenlion@gmail.com>:
Hi,

Instead of using b'...' notation, use bitwise math to get the integer representation of the bitset, and place that in your loader file.

For example:
select 1 | 2 | 8;  ---> 11

Put 11 in your data file and you will get bits 1 2 and 8 set in your bitset.

--Justin

On Mon, Nov 2, 2015 at 4:52 PM, Roberto Spadim <roberto@spadim.com.br> wrote:
sorry found at mysql docs

BIT values cannot be loaded using binary notation (for example, b'011010'). To work around this, specify the values as regular integers and use the SET clause to convert them so that MySQL performs a numeric type conversion and loads them into the BIT column properly:

shell> cat /tmp/bit_test.txt
2
127
shell> mysql test
mysql> LOAD DATA INFILE '/tmp/bit_test.txt'
    -> INTO TABLE bit_test (@var1) SET b = CAST(@var1 AS UNSIGNED);
Query OK, 2 rows affected (0.00 sec)
Records: 2  Deleted: 0  Skipped: 0  Warnings: 0

but i'm checking something very bad
if i execute without "SET" a big file take 1second, with "SET" it takes 3 times more
maybe we could include the bit cast at load data infile and solve this problem? maybe a mariadb improvement?


2015-11-02 21:43 GMT-02:00 Roberto Spadim <roberto@spadim.com.br>:
hi guys, how could i send bit data to mysql with LOAD FILE?

a table example:
create table t (i bit not null default 0);

LOAD DATA LOCAL INFILE "file.csv" IGNORE INTO TABLE `t` FIELDS TERMINATED BY ';' LINES TERMINATED BY '\n' (i)


the data file is simple:

0
1
0
1
0
1

but i got Warning 1024: Out of range value for column 'i' at row 1 ... to last row

any idea? i tried 
b'0'
b'1'
'0'
'1'
0
1
but no one work, i don't know what happen but it's cast always to 1  (maybe convert from string to binary?)



--
Roberto Spadim
SPAEmpresarial - Software ERP
Eng. Automação e Controle

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--
Roberto Spadim
SPAEmpresarial - Software ERP
Eng. Automação e Controle



--
Roberto Spadim
SPAEmpresarial - Software ERP
Eng. Automação e Controle



--
Roberto Spadim
SPAEmpresarial - Software ERP
Eng. Automação e Controle



--
Roberto Spadim
SPAEmpresarial - Software ERP
Eng. Automação e Controle




--
Roberto Spadim
SPAEmpresarial - Software ERP
Eng. Automação e Controle