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>:
probably something here: https://github.com/MariaDB/server/blob/10.1/sql/field.cc#L9127
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:
https://github.com/MariaDB/server/blob/e19a6f3dca7509eb8e042796a9311dba937ad... that's something with field->store (i think) field->store((char*) pos,length,read_info.read_charset);
https://github.com/MariaDB/server/blob/e19a6f3dca7509eb8e042796a9311dba937ad... 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 <https://dev.mysql.com/doc/refman/5.7/en/bit-type.html> 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 > <https://dev.mysql.com/doc/refman/5.7/en/bit-type.html> column > properly: > > <https://dev.mysql.com/doc/refman/5.7/en/load-data.html> > 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 > > _______________________________________________ > Mailing list: https://launchpad.net/~maria-discuss > Post to : maria-discuss@lists.launchpad.net > Unsubscribe : https://launchpad.net/~maria-discuss > More help : https://help.launchpad.net/ListHelp > >
-- 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