Am 21.02.2008 um 10:30 schrieb Neville Franks: > I have created a table with a column: tag text primary key > > When I do: > sqlite> .indices tags > sqlite_autoindex_tags_1 > > I only see the one index which I assume is for the ROWID clm.
No, this is the index for your 'tag' column as can be seen by sqlite> EXPLAIN QUERY PLAN SELECT * FROM tags WHERE tag='foo'; 0|0|TABLE tags WITH INDEX sqlite_autoindex_tags_1 (see also <http://sqlite.org/lang_createtable.html>, especially the section "Specifying a PRIMARY KEY..." for more details) > I have > inserted a row into the table, in case that is relevant. > > My understanding is that a primary key column will have an index. So > my question is where is the index for the 'tag' column? > > This is the complete CREATE TABLE SQL. > > CREATE TABLE tags > ( > tag text primary key, > description text, > date_created text DEFAULT CURRENT_TIMESTAMP, > style text > ) _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
