sqlite quoted column name still case non sensitive (feature or bug)

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sqlite quoted column name still case non sensitive (feature or bug)



I discovered this:


create table yo ([I] integer, [i] integer)
SQL error 1 : duplicate column name: i



Is this a feature or a bug? I read in the doc that we can quote column name.



I am writing code that is not DB portable (Using SQLITE_ name space everywhere) so is there a non-standard DB option setup that can make sqlite engine case sensitive.


SQLITE_



I know purist will say that having 2 cols with the same name is non sensical, but I have situation where case in column names are derived from languages where case sensitivity makes sense.



Cheers,

Phi.




1 Answer
1



In SQLite, identifiers are never case sensitive, not even when quoted.



For backwards compatibility, this is considered a feature.





Thanx CL for your prompt reply. How much an effort would it be to have an optional option (pragma, meta command?) that break this backward compatibilty, since I start working with sqlite there is no background for me, and turning an option doesn't break past programs? I am not fluent enough to evaluate how much of a works it is to change the "identifier compare" function.
– Phi
Sep 25 '15 at 9:44





If you need to ask, then the effort would be too large for you. :)
– CL.
Sep 25 '15 at 11:01






Sounds the sqlite3AddColumn() ==> STRICMP() could be hacked, if a glob is set (in do_meta() .ident_case_sensitive=1) then sqlite3AddColumn() can do an strcmp(). Don't have time to investgate if that is enough
– Phi
Sep 25 '15 at 11:11






no not enough :) need more work than that :)
– Phi
Sep 25 '15 at 11:16





SQLite identifiers are case sensitive when it comes to non-ASCII identifiers... e.g., there is no problem running the following Cyrillic (with a single letter in either case): CREATE TABLE yo ([Б] integer, [б] integer). See also sqlite.org/faq.html#q18
– Brett Zamir
Jan 21 '17 at 1:21



CREATE TABLE yo ([Б] integer, [б] integer)






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