I use a Python ORM called SQLAlchemy, which maps its generic boolean type to 'boolean' on SQLite - which I subsequently plucked from the schema and put into an alter statement. If this is going to cause problems then I can report it to SQLAlchemy, but as John said, this seems to be treated like a numeric type.
Oh, and just to clarify - in the second alter table statement, it should have said: default '' - an error with my copying&pasting. Cheers, Damien On Fri, May 29, 2009 at 8:40 AM, John Machin <sjmac...@lexicon.net> wrote: > On 29/05/2009 2:53 AM, Simon Slavin wrote: >> On 28 May 2009, at 9:00am, Damien Elmes wrote: >> >>> alter table cardModels add column allowEmptyAnswer boolean not null >>> default 1 >> >>> sqlite> update cardModels set allowEmptyAnswer = 0; >> >> You're obviously used to other implementations of SQL. 'boolean' >> isn't a legit type name: >> >> http://www.sqlite.org/datatype3.html > > AFAICT that page says nothing about what is a "legit type name". This > one does: http://www.sqlite.org/syntaxdiagrams.html#type-name > > Here are some examples of legitimate type-names: > > dos-prompt>sqlite3 > SQLite version 3.6.14 > Enter ".help" for instructions > Enter SQL statements terminated with a ";" > sqlite> create table foo (c1 jabberwocky, c2 very big inteher whoops > typo, c3 "3.14159", c4 very variable character (-123456, +666.987), c5 > boolean); > sqlite> pragma table_info(foo); > 0|c1|jabberwocky|0||0 > 1|c2|very big inteher whoops typo|0||0 > 2|c3|3.14159|0||0 > 3|c4|very variable character (-123456, +666.987)|0||0 > 4|c5|boolean|0||0 > sqlite> > > "boolean" as a type-name will cause the column to have NUMERIC affinity > according to the rules on the page you quoted, and the OP seems to be > being careful to restrain values to 0, 1, and NULL, so this all looks > rather sensible to me. > >> >> This may or may not be the cause of the problem you report, but fix it >> first. > > How would you propose to fix it? > > Cheers, > > John > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
