SQLite

  ** so search through the constraints to see if a more efficient 
  ** strategy is possible.
  */
  pInfo->idxNum = FTS3_FULLSCAN_SEARCH;
  pInfo->estimatedCost = 500000;
  for(i=0; i<pInfo->nConstraint; i++){
    struct sqlite3_index_constraint *pCons = &pInfo->aConstraint[i];
    int iCol = pCons->iColumn;
    if( pCons->usable==0 ) continue;

    /* A direct lookup on the rowid or docid column. Assign a cost of 1.0. */

    if( iCons<0 && pCons->op==SQLITE_INDEX_CONSTRAINT_EQ 
     && (iCol<0 || (iCol==p->nColumn+1 && p->nLanguageidBits==0))
    ){
      pInfo->idxNum = FTS3_DOCID_SEARCH;
      pInfo->estimatedCost = 1.0;
      iCons = i;
    }

    /* A MATCH constraint. Use a full-text search.

    SELECT docid, lid, content FROM t1 WHERE t1 MATCH '1'
  } "
      $min_docid  $min_langid  {1 min min x}
  "

  do_execsql_test 5.$bits.5 { DROP TABLE t1 }
}

#-------------------------------------------------------------------------
# Tests for auxilliary functions with langaugeid_bits tables.
#
proc mit {blob} {
  set scan(littleEndian) i*
  set scan(bigEndian) I*
  binary scan $blob $scan($::tcl_platform(byteOrder)) r
  return $r
}
db func mit mit

do_execsql_test 6.1 {
  CREATE VIRTUAL TABLE t1 USING fts4(languageid_bits=4, languageid=lid);
  INSERT INTO t1(docid,lid,content) VALUES(1, 1, 'one two three four');
  INSERT INTO t1(docid,lid,content) VALUES(2, 1, 'two three four five');
  INSERT INTO t1(docid,lid,content) VALUES(3, 1, 'three four five six');
  INSERT INTO t1(docid,lid,content) VALUES(4, 1, 'four five six seven');

  INSERT INTO t1(docid,lid,content) VALUES(1, 2, 'four three two one');
  INSERT INTO t1(docid,lid,content) VALUES(2, 2, 'five four three two');
  INSERT INTO t1(docid,lid,content) VALUES(3, 2, 'six five four three');
  INSERT INTO t1(docid,lid,content) VALUES(4, 2, 'A B C D');
}

do_execsql_test 6.2.1 {
  SELECT docid, snippet(t1) FROM t1 WHERE t1 MATCH 'one' AND lid=1;
} {1 {<b>one</b> two three four}}
do_execsql_test 6.2.2 {
  SELECT docid, snippet(t1) FROM t1 WHERE t1 MATCH 'one' AND lid=2;
} {1 {four three two <b>one</b>}}

do_execsql_test 6.2.1 {
  SELECT docid, offsets(t1) FROM t1 WHERE t1 MATCH 'two' AND lid=1;
} {1 {0 0 4 3} 2 {0 0 0 3}}
do_execsql_test 6.2.2 {
  SELECT docid, offsets(t1) FROM t1 WHERE t1 MATCH 'two' AND lid=2;
} {1 {0 0 11 3} 2 {0 0 16 3}}

do_execsql_test 6.3.1 {
  SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'two' AND lid=1;
} {1 {1 1 1 2 2} 2 {1 1 1 2 2}}
do_execsql_test 6.3.2 {
  SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'two' AND lid=2;
} {1 {1 1 1 2 2} 2 {1 1 1 2 2}}
do_execsql_test 6.3.3 {
  SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'B' AND lid=1;
} {}
do_execsql_test 6.3.4 {
  SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'B' AND lid=2;
} {4 {1 1 1 1 1}}

do_execsql_test 6.4 {
  CREATE VIRTUAL TABLE t2 USING fts4(languageid_bits=1, languageid=lid);
  INSERT INTO t1(docid,lid,content) VALUES(-1, 0, 'A B C D');
  INSERT INTO t1(docid,lid,content) VALUES(-2, 0, 'D C B A');
  INSERT INTO t1(docid,lid,content) VALUES(-3, 0, 'C B D A');
  INSERT INTO t1(docid,lid,content) VALUES(-4, 0, 'A D B C');

  INSERT INTO t1(docid,lid,content) VALUES(-1, 1, 'A A A A');
  INSERT INTO t1(docid,lid,content) VALUES(-2, 1, 'B B B B');
  INSERT INTO t1(docid,lid,content) VALUES(-3, 1, 'C C C C');
  INSERT INTO t1(docid,lid,content) VALUES(-4, 1, 'D D D D');
}

do_execsql_test 6.4.1 {
  SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'B';
} {
  -4 {1 1 1 4 4}
  -3 {1 1 1 4 4}
  -2 {1 1 1 4 4}
  -1 {1 1 1 4 4}
}
do_execsql_test 6.4.2 {
  SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'B' AND lid=1;
} {-2 {1 1 4 4 1}}

do_execsql_test 6.5 {
  DROP TABLE t1;
  DROP TABLE t2;
}

#-------------------------------------------------------------------------
# Tests for querying by docid.
#

do_execsql_test 7.1 {
  CREATE VIRTUAL TABLE t1 USING fts4(languageid_bits=8, languageid=lid);
  INSERT INTO t1(docid,lid,content) VALUES(10, 10, 'abc def');
}

do_execsql_test 7.2 {
  SELECT docid,lid,content FROM t1 WHERE docid=10;
} {10 10 {abc def}}





finish_test

  fts3expr3.test
  fts3near.test fts3query.test fts3shared.test fts3snippet.test 
  fts3sort.test
  fts3fault.test fts3malloc.test fts3matchinfo.test
  fts3aux1.test fts3comp1.test fts3auto.test
  fts4aa.test fts4content.test
  fts3conf.test fts3prefix.test fts3fault2.test fts3corrupt.test
  fts3corrupt2.test fts3first.test fts4langid.test fts4langid2.test
  fts4merge.test
  fts4check.test fts4unicode.test
}

test_suite "nofaultsim" -prefix "" -description {
  "Very" quick test suite. Runs in less than 5 minutes on a workstation. 
  This test suite is the same as the "quick" tests, except that some files
  that test malloc and IO errors are omitted.