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test/fts3join.test
104 строки3 KB
drh
Relax query flattener constraint (3b) and thereby allow flattening the RHS of
31 май 2025, 19:17
31 май 2025, 19:175248693
# 2014 January 4
#
# 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.
#
#*************************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the FTS3 module.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix fts3join

# If SQLITE_ENABLE_FTS3 is defined, omit this file.
ifcapable !fts3 {
  finish_test
  return
}

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE ft1 USING fts4(x);
  INSERT INTO ft1 VALUES('aaa aaa');
  INSERT INTO ft1 VALUES('aaa bbb');
  INSERT INTO ft1 VALUES('bbb aaa');
  INSERT INTO ft1 VALUES('bbb bbb');

  CREATE TABLE t1(id, y);
  INSERT INTO t1 VALUES(1, 'aaa');
  INSERT INTO t1 VALUES(2, 'bbb');
}

do_execsql_test 1.1 {
  SELECT docid FROM ft1, t1 WHERE ft1 MATCH y AND id=1;
} {1 2 3}

do_execsql_test 1.2 {
  SELECT docid FROM ft1, t1 WHERE ft1 MATCH y AND id=1 ORDER BY docid;
} {1 2 3}

do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE ft2 USING fts4(x);
  CREATE VIRTUAL TABLE ft3 USING fts4(y);

  INSERT INTO ft2 VALUES('abc');
  INSERT INTO ft2 VALUES('def');
  INSERT INTO ft3 VALUES('ghi');
  INSERT INTO ft3 VALUES('abc');
}

do_execsql_test 2.1 { SELECT * FROM ft2, ft3 WHERE x MATCH y; } {abc abc}
do_execsql_test 2.2 { SELECT * FROM ft2, ft3 WHERE y MATCH x; } {abc abc}
do_execsql_test 2.3 { SELECT * FROM ft3, ft2 WHERE x MATCH y; } {abc abc}
do_execsql_test 2.4 { SELECT * FROM ft3, ft2 WHERE y MATCH x; } {abc abc}

do_catchsql_test 2.5 { 
  SELECT * FROM ft3, ft2 WHERE y MATCH x AND x MATCH y; 
} {1 {unable to use function MATCH in the requested context}}

do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE vt USING fts3(x);
  INSERT INTO vt VALUES('abc');
  INSERT INTO vt VALUES('xyz');

  CREATE TABLE tt(a INTEGER PRIMARY KEY);
  INSERT INTO tt VALUES(1), (2);
}

do_execsql_test 3.1 {
  SELECT * FROM tt LEFT JOIN (
    SELECT rowid AS rrr, * FROM vt WHERE vt MATCH 'abc'
  ) ON tt.a = rrr
} {1 1 abc 2 {} {}}

do_execsql_test 3.2 {
  SELECT * FROM tt LEFT JOIN vt ON (vt MATCH 'abc')
} {1 abc 2 abc}

#-------------------------------------------------------------------------
# Test that queries of the form found in test case 4.2 use an automatic
# index to avoid running multiple fts queries.
#
do_execsql_test 4.1 {
  CREATE VIRTUAL TABLE ft4 USING fts3(x);
  CREATE TABLE t4(y, z);
  CREATE INDEX t4y ON t1(y);
}

do_eqp_test 4.2 {
  SELECT * FROM t4 LEFT JOIN (
      SELECT docid, * FROM ft4 WHERE ft4 MATCH ?
  ) AS rr ON t4.rowid=rr.docid 
  WHERE t4.y = ?;
} {
  QUERY PLAN
  |--SCAN t4
  `--SCAN ft4 VIRTUAL TABLE INDEX 3: LEFT-JOIN
}

finish_test