[sql] Import SQLite 3.17.0.

third_party/sqlite/src/ext/fts5/test/fts5aux.test

 # 2014 Dec 20
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
 #
 #    May you do good and not evil.
 #    May you find forgiveness for yourself and forgive others.
 #    May you share freely, never taking more than you give.
 #
 #***********************************************************************
@@ skipping 228 matching lines @@
   3  {"a a d"}           {"[a] [a] d"}
 } {
   execsql { DELETE FROM x1 }
   foreach row $lRow { execsql { INSERT INTO x1 VALUES($row) } }
   breakpoint
   do_execsql_test 8.$tn {
     SELECT highlight(x1, 0, '[', ']') FROM x1 WHERE x1 MATCH 'a OR (b AND d)';
   } $res
 }
 
+#-------------------------------------------------------------------------
+# Test the built-in bm25() demo.
+#
+reset_db
+do_execsql_test 9.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
+  INSERT INTO t1 VALUES('a',   NULL);           -- 1
+  INSERT INTO t1 VALUES('a',   NULL);           -- 2
+  INSERT INTO t1 VALUES('a',   NULL);           -- 3
+  INSERT INTO t1 VALUES('a',   NULL);           -- 4
+  INSERT INTO t1 VALUES('a',   NULL);           -- 5
+  INSERT INTO t1 VALUES('a',   NULL);           -- 6
+  INSERT INTO t1 VALUES('a',   NULL);           -- 7
+  INSERT INTO t1 VALUES('a',   NULL);           -- 8
+  INSERT INTO t1 VALUES(NULL,  'a a b');        -- 9
+  INSERT INTO t1 VALUES(NULL,  'b b a');        -- 10
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid FROM t1('a AND b') ORDER BY rank;
+} {
+  10 9
+}
+
+do_execsql_test 9.3 {
+  SELECT rowid FROM t1('b:a AND b:b') ORDER BY rank;
+} {
+  9 10
+}
+
+
+
 finish_test