# 2008 July 29

 #

 # 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.

 #

 #*************************************************************************

 # These tests exercise the various types of fts2 cursors.

 #

 # $Id: fts2r.test,v 1.1 2008/07/29 20:38:18 shess Exp $

 #

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # If SQLITE_ENABLE_FTS2 is not defined, omit this file.

 ifcapable !fts2 {

   finish_test

   return

 }

 #*************************************************************************

 # Test table scan (QUERY_GENERIC).  This kind of query happens for

 # queries with no WHERE clause, or for WHERE clauses which cannot be

 # satisfied by an index.

 db eval {

   DROP TABLE IF EXISTS t1;

   CREATE VIRTUAL TABLE t1 USING fts2(c);

   INSERT INTO t1 (rowid, c) VALUES (1, 'This is a test');

   INSERT INTO t1 (rowid, c) VALUES (2, 'That was a test');

   INSERT INTO t1 (rowid, c) VALUES (3, 'This is a test');

 }

 do_test fts2e-1.1 {

   execsql {

     SELECT rowid FROM t1 ORDER BY rowid;

   }

 } {1 2 3}

 do_test fts2e-1.2 {

   execsql {

     SELECT rowid FROM t1 WHERE c LIKE '%test' ORDER BY rowid;

   }

 } {1 2 3}

 do_test fts2e-1.3 {

   execsql {

     SELECT rowid FROM t1 WHERE c LIKE 'That%' ORDER BY rowid;

   }

 } {2}

 #*************************************************************************

 # Test lookup by rowid (QUERY_ROWID).  This kind of query happens for

 # queries which select by the rowid implicit index.

 db eval {

   DROP TABLE IF EXISTS t1;

   DROP TABLE IF EXISTS t2;

   CREATE VIRTUAL TABLE t1 USING fts2(c);

   CREATE TABLE t2(id INTEGER PRIMARY KEY AUTOINCREMENT, weight INTEGER UNIQUE);

   INSERT INTO t2 VALUES (null, 10);

   INSERT INTO t1 (rowid, c) VALUES (last_insert_rowid(), 'This is a test');

   INSERT INTO t2 VALUES (null, 5);

   INSERT INTO t1 (rowid, c) VALUES (last_insert_rowid(), 'That was a test');

   INSERT INTO t2 VALUES (null, 20);

   INSERT INTO t1 (rowid, c) VALUES (last_insert_rowid(), 'This is a test');

 }

 # TODO(shess): This actually is doing QUERY_GENERIC?  I'd have

 # expected QUERY_ROWID in this case, as for a very large table the

 # full scan is less efficient.

 do_test fts2e-2.1 {

   execsql {

     SELECT rowid FROM t1 WHERE rowid in (1, 2, 10);

   }

 } {1 2}

 do_test fts2e-2.2 {

   execsql {

     SELECT t1.rowid, weight FROM t1, t2 WHERE t2.id = t1.rowid ORDER BY weight;

   }

 } {2 5 1 10 3 20}

 do_test fts2e-2.3 {

   execsql {

     SELECT t1.rowid, weight FROM t1, t2

            WHERE t2.weight>5 AND t2.id = t1.rowid ORDER BY weight;

   }

 } {1 10 3 20}

 #*************************************************************************

 # Test lookup by MATCH (QUERY_FULLTEXT).  This is the fulltext index.

 db eval {

   DROP TABLE IF EXISTS t1;

   DROP TABLE IF EXISTS t2;

   CREATE VIRTUAL TABLE t1 USING fts2(c);

   CREATE TABLE t2(id INTEGER PRIMARY KEY AUTOINCREMENT, weight INTEGER UNIQUE);

   INSERT INTO t2 VALUES (null, 10);

   INSERT INTO t1 (rowid, c) VALUES (last_insert_rowid(), 'This is a test');

   INSERT INTO t2 VALUES (null, 5);

   INSERT INTO t1 (rowid, c) VALUES (last_insert_rowid(), 'That was a test');

   INSERT INTO t2 VALUES (null, 20);

   INSERT INTO t1 (rowid, c) VALUES (last_insert_rowid(), 'This is a test');

 }

 do_test fts2e-3.1 {

   execsql {

     SELECT rowid FROM t1 WHERE t1 MATCH 'this' ORDER BY rowid;

   }

 } {1 3}

 do_test fts2e-3.2 {

   execsql {

     SELECT t1.rowid, weight FROM t1, t2

      WHERE t1 MATCH 'this' AND t1.rowid = t2.id ORDER BY weight;

   }

 } {1 10 3 20}

 finish_test