On 2/24/15, Grisha Vinevich <grisha at negevsoft.com> wrote: > There seems to be some problem with left outer join in Windows version of > sqlite3.
Thanks for the report. This appears to be a query planner bug introduced for SQLite version 3.8.8 by the check-in at https://www.sqlite.org/src/timeline?c=d95d03 We'll probably have a fix out soon. > I try to use the following (simplified) schema: > > CREATE TABLE "A" ( "Name" text); > CREATE TABLE "Items" ( "ItemName" text , "Name" text ); > INSERT INTO "Items" VALUES('Item1','Parent'); > INSERT INTO "Items" VALUES('Item2','Parent'); > CREATE TABLE "B" ( "Name" text ); > > Now I try to run the following query (again, simplified version of my real > query): > > select Items.ItemName > from Items > left outer join A on (A.Name = Items.ItemName and > Items.ItemName = 'dummy') > left outer join B on (B.Name = Items.ItemName) > where Items.Name = 'Parent' > order by Items.ItemName; > When I run this on SQLFiddle<http://www.sqlfiddle.com/#!7/763a5/1>, It > returns (correctly) 2 records. > But when I run this on Windows (using sqlite3.exe command-line utility, for > example), no records are returned. Note that if I remove "order by" clause > or one of the joins or even dummy condition inside the first join, the query > works OK. > The same happens on Windows Phone using sqlite.net. > Any suggestions would be appreciated... > Thanks in advance, > Grisha. > > _______________________________________________ > sqlite-users mailing list > sqlite-users at mailinglists.sqlite.org > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users > -- D. Richard Hipp drh at sqlite.org
