create index posts_fb_post_id_idx on posts(fb_post_id);
create index posts_post_time_idx on posts(post_time);
-create fulltext index submitter_idx on posts(submitter);
-create fulltext index uri_idx on posts(uri);
-create fulltext index msg_idx on posts(prefix,path,suffix);
-create fulltext index msg_full_idx on posts(prefix,uri,suffix);
+create index submitter_idx on posts(submitter(64));
+create index uri_idx on posts(uri(1024));
+create fulltext index full_submitter_idx on posts(submitter);
+create fulltext index full_msg_path_idx on posts(prefix,path,suffix);
+create fulltext index full_msg_idx on posts(prefix,uri,suffix);