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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

Artifact 648fb2fe86b55e08295e34504704718d92fba3e2cf3e1f5d72fa3682df4cd0f0:


# 2015 Apr 24
#
# 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.
#
#***********************************************************************
#
# The tests in this file focus on testing the fts5vocab module.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5vocab

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

foreach_detail_mode $testprefix {

proc null_list_entries {iFirst nInterval L} {
  for {set i $iFirst} {$i < [llength $L]} {incr i $nInterval} {
    lset L $i {}
  }
  return $L
}

proc star_from_row {L} {
  if {[detail_is_full]==0} {
    set L [null_list_entries 2 3 $L]
  }
  return $L
}

proc star_from_col {L} {
  if {[detail_is_col]} {
    set L [null_list_entries 3 4 $L]
  }
  if {[detail_is_none]} {
    set L [null_list_entries 1 4 $L]
    set L [null_list_entries 3 4 $L]
  }
  return $L
}

proc row_to_col {L} {
  if {[detail_is_none]==0} { error "this is for detail=none mode" }
  set ret [list]
  foreach {a b c} $L {
    lappend ret $a {} $b {}
  }
  set ret
}

if 1 {

do_execsql_test 1.1.1 {
  CREATE VIRTUAL TABLE t1 USING fts5(one, prefix=1, detail=%DETAIL%);
  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, 'row');
  PRAGMA table_info = v1;
} {
  0 term {} 0 {} 0
  1 doc {} 0 {} 0
  2 cnt {} 0 {} 0
}

do_execsql_test 1.1.2 {
  CREATE VIRTUAL TABLE v2 USING fts5vocab(t1, 'col');
  PRAGMA table_info = v2;
} {
  0 term {} 0 {} 0
  1 col {} 0 {} 0
  2 doc {} 0 {} 0
  3 cnt {} 0 {} 0
}

do_execsql_test 1.2.1 { SELECT * FROM v1 } {}
do_execsql_test 1.2.2 { SELECT * FROM v2 } {}

do_execsql_test 1.3 {
  INSERT INTO t1 VALUES('x y z');
  INSERT INTO t1 VALUES('x x x');
}

do_execsql_test 1.4.1 {
  SELECT * FROM v1;
} [star_from_row {x 2 4  y 1 1  z 1 1}]

do_execsql_test 1.4.2 {
  SELECT * FROM v2;
} [star_from_col {x one 2 4  y one 1 1  z one 1 1}]

do_execsql_test 1.5.1 {
  BEGIN;
    INSERT INTO t1 VALUES('a b c');
    SELECT * FROM v1 WHERE term<'d';
} [star_from_row {a 1 1   b 1 1   c 1 1}]

do_execsql_test 1.5.2 {
    SELECT * FROM v2 WHERE term<'d';
  COMMIT;
} [star_from_col {a one 1 1  b one 1 1  c one 1 1}]

do_execsql_test 1.6 {
  DELETE FROM t1 WHERE one = 'a b c';
  SELECT * FROM v1;
} [star_from_row {x 2 4  y 1 1  z 1 1}]

#-------------------------------------------------------------------------
#
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE tt USING fts5(a, b, detail=%DETAIL%);
  INSERT INTO tt VALUES('d g b f d f', 'f c e c d a');
  INSERT INTO tt VALUES('f a e a a b', 'e d c f d d');
  INSERT INTO tt VALUES('b c a a a b', 'f f c c b c');
  INSERT INTO tt VALUES('f d c a c e', 'd g d e g d');
  INSERT INTO tt VALUES('g d e f a g x', 'f f d a a b');
  INSERT INTO tt VALUES('g c f b c g', 'a g f d c b');
  INSERT INTO tt VALUES('c e c f g b', 'f e d b g a');
  INSERT INTO tt VALUES('g d e f d e', 'a c d b a g');
  INSERT INTO tt VALUES('e f a c c b', 'b f e a f d y');
  INSERT INTO tt VALUES('c c a a c f', 'd g a e b g');
}

set res_row [star_from_row {
  a 10 20   b 9 14   c 9 20   d 9 19   
  e 8 13   f 10 20   g 7 14   x 1 1   
  y 1 1
}]
set res_col [star_from_col {
  a a 6 11    a b 7 9
  b a 6 7     b b 7 7 
  c a 6 12    c b 5 8 
  d a 4 6     d b 9 13 
  e a 6 7     e b 6 6 
  f a 9 10    f b 7 10 
  g a 5 7     g b 5 7
  x a 1 1     y b 1 1
}]
if {[detail_is_none]} {
  set res_col [row_to_col $res_row]
}

foreach {tn tbl resname} {
  1 "fts5vocab(tt, 'col')" res_col
  2 "fts5vocab(tt, 'row')" res_row
  3 "fts5vocab(tt, \"row\")" res_row
  4 "fts5vocab(tt, [row])" res_row
  5 "fts5vocab(tt, `row`)" res_row

  6 "fts5vocab('tt', 'row')" res_row
  7 "fts5vocab(\"tt\", \"row\")" res_row
  8 "fts5vocab([tt], [row])" res_row
  9 "fts5vocab(`tt`, `row`)" res_row
} {
  do_execsql_test 2.$tn "
    DROP TABLE IF EXISTS tv;
    CREATE VIRTUAL TABLE tv USING $tbl;
    SELECT * FROM tv;
  " [set $resname]
}

#-------------------------------------------------------------------------
# Test errors in the CREATE VIRTUAL TABLE statement.
#
foreach {tn sql} {
  1 { CREATE VIRTUAL TABLE aa USING fts5vocab() }
  2 { CREATE VIRTUAL TABLE aa USING fts5vocab(x) }
  3 { CREATE VIRTUAL TABLE aa USING fts5vocab(x,y,z) }
  4 { CREATE VIRTUAL TABLE temp.aa USING fts5vocab(x,y,z,y) }
} {
  do_catchsql_test 3.$tn $sql {1 {wrong number of vtable arguments}}
}

do_catchsql_test 4.0 {
  CREATE VIRTUAL TABLE cc USING fts5vocab(tbl, unknown);
} {1 {fts5vocab: unknown table type: 'unknown'}}

do_catchsql_test 4.1 {
  ATTACH 'test.db' AS aux;
  CREATE VIRTUAL TABLE aux.cc USING fts5vocab(main, tbl, row);
} {1 {wrong number of vtable arguments}}

#-------------------------------------------------------------------------
# Test fts5vocab tables created in the temp schema. 
#
reset_db
forcedelete test.db2
do_execsql_test 5.0 {
  ATTACH 'test.db2' AS aux;
  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
  CREATE VIRTUAL TABLE temp.t1 USING fts5(x, detail=%DETAIL%);
  CREATE VIRTUAL TABLE aux.t1 USING fts5(x, detail=%DETAIL%);

  INSERT INTO main.t1 VALUES('a b c');
  INSERT INTO main.t1 VALUES('d e f');
  INSERT INTO main.t1 VALUES('a e c');

  INSERT INTO temp.t1 VALUES('1 2 3');
  INSERT INTO temp.t1 VALUES('4 5 6');
  INSERT INTO temp.t1 VALUES('1 5 3');

  INSERT INTO aux.t1 VALUES('x y z');
  INSERT INTO aux.t1 VALUES('m n o');
  INSERT INTO aux.t1 VALUES('x n z');
}

do_execsql_test 5.1 {
  CREATE VIRTUAL TABLE temp.vm  USING fts5vocab(main, t1, row);
  CREATE VIRTUAL TABLE temp.vt1 USING fts5vocab(t1, row);
  CREATE VIRTUAL TABLE temp.vt2 USING fts5vocab(temp, t1, row);
  CREATE VIRTUAL TABLE temp.va  USING fts5vocab(aux, t1, row);
}

do_execsql_test 5.2 { SELECT * FROM vm } [star_from_row {
  a 2 2 b 1 1 c 2 2 d 1 1 e 2 2 f 1 1
}]
do_execsql_test 5.3 { SELECT * FROM vt1 } [star_from_row {
  1 2 2 2 1 1 3 2 2 4 1 1 5 2 2 6 1 1
}]
do_execsql_test 5.4 { SELECT * FROM vt2 } [star_from_row {
  1 2 2 2 1 1 3 2 2 4 1 1 5 2 2 6 1 1
}]
do_execsql_test 5.5 { SELECT * FROM va } [star_from_row {
  m 1 1 n 2 2 o 1 1 x 2 2 y 1 1 z 2 2
}]

#-------------------------------------------------------------------------
#
do_execsql_test 6.0 {
  CREATE TABLE iii(iii);
  CREATE TABLE jjj(x);
}

do_catchsql_test 6.1 {
  CREATE VIRTUAL TABLE vocab1 USING fts5vocab(iii, row);
  SELECT * FROM vocab1;
} {1 {no such fts5 table: main.iii}}

do_catchsql_test 6.2 {
  CREATE VIRTUAL TABLE vocab2 USING fts5vocab(jjj, row);
  SELECT * FROM vocab2;
} {1 {no such fts5 table: main.jjj}}

do_catchsql_test 6.2 {
  CREATE VIRTUAL TABLE vocab3 USING fts5vocab(lll, row);
  SELECT * FROM vocab3;
} {1 {no such fts5 table: main.lll}}

#-------------------------------------------------------------------------
# Test single term queries on fts5vocab tables (i.e. those with term=?
# constraints in the WHERE clause).
#
do_execsql_test 7.0 {
  CREATE VIRTUAL TABLE tx USING fts5(one, two, detail=%DETAIL%);
  INSERT INTO tx VALUES('g a ggg g a b eee',      'cc d aa ff g ee');
  INSERT INTO tx VALUES('dd fff i a i jjj',       'f fff hh jj e f');
  INSERT INTO tx VALUES('ggg a f f fff dd aa',    'd ggg f f j gg ddd');
  INSERT INTO tx VALUES('e bb h jjj ii gg',       'e aa e f c fff');
  INSERT INTO tx VALUES('j ff aa a h',            'h a j bbb bb');
  INSERT INTO tx VALUES('cc i ff c d f',          'dd ii fff f c cc d');
  INSERT INTO tx VALUES('jjj g i bb cc eee',      'hhh iii aaa b bbb aaa');
  INSERT INTO tx VALUES('hhh hhh hhh bb fff f',   'fff gg aa ii h a');
  INSERT INTO tx VALUES('b c cc aaa iii ggg f',   'iii ff ee a ff c cc');
  INSERT INTO tx VALUES('hhh b hhh aaa j i i',    'dd ee ee aa bbb iii');
  INSERT INTO tx VALUES('hh dd h b g ff i',       'ccc bb cc ccc f a d');
  INSERT INTO tx VALUES('g d b ggg jj',           'fff jj ff jj g gg ee');
  INSERT INTO tx VALUES('g ee ggg ggg cc bb eee', 'aa j jjj bbb dd eee ff');
  INSERT INTO tx VALUES('c jjj hh ddd dd h',      'e aaa h jjj gg');

  CREATE VIRTUAL TABLE txr USING fts5vocab(tx, row);
  CREATE VIRTUAL TABLE txc USING fts5vocab(tx, col);
}

proc cont {L elem} {
  set n 0
  foreach e $L { if {$elem==$e} {incr n} }
  set n
}
db func cont cont

foreach {term} {
  a aa aaa
  b bb bbb
  c cc ccc
  d dd ddd
  e ee eee
  f ff fff
  g gg ggg
  h hh hhh
  i ii iii
  j jj jjj
} {
  set resr [db eval {
    SELECT $term, 
      sum(cont(one || ' ' || two, $term) > 0),
      sum(cont(one || ' ' || two, $term))
    FROM tx
  }]
  if {[lindex $resr 1]==0} {set resr [list]}

  set r1 [db eval {
    SELECT $term, 'one', sum(cont(one, $term)>0), sum(cont(one, $term)) FROM tx
  }]
  if {[lindex $r1 2]==0} {set r1 [list]}

  set r2 [db eval {
    SELECT $term, 'two', sum(cont(two, $term)>0), sum(cont(two, $term)) FROM tx
  }]
  if {[lindex $r2 2]==0} {set r2 [list]}

  set resc [concat $r1 $r2]

  set resc [star_from_col $resc]
  set resr [star_from_row $resr]
  if {[detail_is_none]} { set resc [row_to_col $resr] }
  do_execsql_test 7.$term.1 {SELECT * FROM txc WHERE term=$term} $resc
  do_execsql_test 7.$term.2 {SELECT * FROM txr WHERE term=$term} $resr
}

do_execsql_test 7.1 {
  CREATE TABLE txr_c AS SELECT * FROM txr;
  CREATE TABLE txc_c AS SELECT * FROM txc;
}

# Test range queries on the fts5vocab tables created above.
#
foreach {tn a b} {
  1   a   jjj
  2   bb  j
  3   ccc ddd
  4   dd  xyz
  5   xzy dd
  6   h   hh
} {
  do_execsql_test 7.2.$tn.1 {
    SELECT * FROM txr WHERE term>=$a
  } [db eval {SELECT * FROM txr_c WHERE term>=$a}]
  do_execsql_test 7.2.$tn.2 {
    SELECT * FROM txr WHERE term<=$b
  } [db eval {SELECT * FROM txr_c WHERE term <=$b}]
  do_execsql_test 7.2.$tn.3 {
    SELECT * FROM txr WHERE term>=$a AND term<=$b
  } [db eval {SELECT * FROM txr_c WHERE term>=$a AND term <=$b}]

  do_execsql_test 7.2.$tn.4 {
    SELECT * FROM txc WHERE term>=$a
  } [db eval {SELECT * FROM txc_c WHERE term>=$a}]
  do_execsql_test 7.2.$tn.5 {
    SELECT * FROM txc WHERE term<=$b
  } [db eval {SELECT * FROM txc_c WHERE term <=$b}]
  do_execsql_test 7.2.$tn.6 {
    SELECT * FROM txc WHERE term>=$a AND term<=$b
  } [db eval {SELECT * FROM txc_c WHERE term>=$a AND term <=$b}]

  do_execsql_test 7.2.$tn.7 {
    SELECT * FROM txr WHERE term>$a
  } [db eval {SELECT * FROM txr_c WHERE term>$a}]
  do_execsql_test 7.2.$tn.8 {
    SELECT * FROM txr WHERE term<$b
  } [db eval {SELECT * FROM txr_c WHERE term<$b}]
  do_execsql_test 7.2.$tn.9 {
    SELECT * FROM txr WHERE term>$a AND term<$b
  } [db eval {SELECT * FROM txr_c WHERE term>$a AND term <$b}]

  do_execsql_test 7.2.$tn.10 {
    SELECT * FROM txc WHERE term>$a
  } [db eval {SELECT * FROM txc_c WHERE term>$a}]
  do_execsql_test 7.2.$tn.11 {
    SELECT * FROM txc WHERE term<$b
  } [db eval {SELECT * FROM txc_c WHERE term<$b}]
  do_execsql_test 7.2.$tn.12 {
    SELECT * FROM txc WHERE term>$a AND term<$b
  } [db eval {SELECT * FROM txc_c WHERE term>$a AND term <$b}]
}

do_execsql_test 7.3.1 {
  SELECT count(*) FROM txr, txr_c WHERE txr.term = txr_c.term;
} {30}

if {![detail_is_none]} {
  do_execsql_test 7.3.2 {
    SELECT count(*) FROM txc, txc_c
      WHERE txc.term = txc_c.term AND txc.col=txc_c.col;
  } {57}
}

}

#-------------------------------------------------------------------------
# Test the fts5vocab tables response to a specific types of corruption:
# where the fts5 index contains hits for columns that do not exist.
#
do_execsql_test 8.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(a, b, c, detail=%DETAIL%);
  INSERT INTO x1 VALUES('a b c', 'd e f', 'g h i');
  INSERT INTO x1 VALUES('g h i', 'a b c', 'd e f');
  INSERT INTO x1 VALUES('d e f', 'g h i', 'a b c');
  CREATE VIRTUAL TABLE x1_r USING fts5vocab(x1, row);
  CREATE VIRTUAL TABLE x1_c USING fts5vocab(x1, col);
}

set resr [star_from_row {a 3 3 b 3 3 c 3 3 d 3 3 e 3 3 f 3 3 g 3 3 h 3 3 i 3 3}]
set resc [star_from_col {
  a a 1 1 a b 1 1 a c 1 1 b a 1 1 
  b b 1 1 b c 1 1 c a 1 1 c b 1 1 
  c c 1 1 d a 1 1 d b 1 1 d c 1 1
  e a 1 1 e b 1 1 e c 1 1 f a 1 1 
  f b 1 1 f c 1 1 g a 1 1 g b 1 1 
  g c 1 1 h a 1 1 h b 1 1 h c 1 1 
  i a 1 1 i b 1 1 i c 1 1
}]
if {[detail_is_none]} { set resc [row_to_col $resr] }

do_execsql_test 8.1.1 { SELECT * FROM x1_r; } $resr
do_execsql_test 8.1.2 { SELECT * FROM x1_c } $resc

sqlite3_db_config db DEFENSIVE 0
do_execsql_test 8.2 {
  PRAGMA writable_schema = 1;
  UPDATE sqlite_master 
  SET sql = 'CREATE VIRTUAL TABLE x1 USING fts5(a, detail=%DETAIL%)'
  WHERE name = 'x1';
}
db close
sqlite3 db test.db
sqlite3_fts5_may_be_corrupt 1

do_execsql_test 8.2.1 { SELECT * FROM x1_r } $resr

if {[detail_is_none]} {
  do_execsql_test 8.2.2 { SELECT * FROM x1_c } $resc
} else {
  do_catchsql_test 8.2.2 { 
    SELECT * FROM x1_c 
  } {1 {database disk image is malformed}}
}

sqlite3_fts5_may_be_corrupt 0
}

#-------------------------------------------------------------------------
# Test that both "ORDER BY term" and "ORDER BY term DESC" work.
#
reset_db
do_execsql_test 9.1 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1 VALUES('def ABC ghi');
  INSERT INTO x1 VALUES('DEF abc GHI');
}

do_execsql_test 9.2 {
  CREATE VIRTUAL TABLE rrr USING fts5vocab(x1, row);
  SELECT * FROM rrr
} {
  abc 2 2 def 2 2 ghi 2 2
}
do_execsql_test 9.3 {
  SELECT * FROM rrr ORDER BY term ASC
} {
  abc 2 2 def 2 2 ghi 2 2
}
do_execsql_test 9.4 {
  SELECT * FROM rrr ORDER BY term DESC
} {
  ghi 2 2 def 2 2 abc 2 2 
}
do_test 9.5 {
  set e2 [db eval { EXPLAIN SELECT * FROM rrr ORDER BY term ASC }]
  expr [lsearch $e2 SorterSort]<0
} 1
do_test 9.6 {
  set e2 [db eval { EXPLAIN SELECT * FROM rrr ORDER BY term DESC }]
  expr [lsearch $e2 SorterSort]<0
} 0

#-------------------------------------------------------------------------
do_execsql_test 10.0 {
  CREATE VIRTUAL TABLE ft USING fts5(a, b, c);
  CREATE VIRTUAL TABLE t2 USING fts5vocab('ft','row');
  CREATE VIRTUAL TABLE t3 USING fts5vocab('ft','row');
}

do_execsql_test 10.1 {
  BEGIN;
    INSERT INTO ft(b) VALUES('x y');
}

do_execsql_test 10.2 {
  SELECT t2.term FROM t2;
} {x y}

do_execsql_test 10.3 {
  SELECT t2.term, t3.term FROM t2, t3;
} {x x x y y x y y}

do_execsql_test 10.4 {
  COMMIT;
}

do_execsql_test 10.5 {
  BEGIN;
    INSERT INTO ft(a) VALUES('1 2 3');
    INSERT INTO ft(a) VALUES('4 5 6');
    INSERT INTO ft(a) VALUES('1 2 3');
    INSERT INTO ft(a) VALUES('4 5 6');
    INSERT INTO ft(a) VALUES('1 2 3');
    INSERT INTO ft(a) VALUES('4 5 6');
}

do_test 10.6 {
  set res [list]
  db eval { SELECT rowid FROM ft('4') } x {
    db eval { SELECT * FROM t2 }
    lappend res $x(rowid)
  }
  db eval COMMIT
  set res
} {3 5 7}

do_execsql_test 10.6.1 {
  SELECT * FROM t2 WHERE term<NULL;
}
do_execsql_test 10.6.2 {
  SELECT * FROM t2 WHERE term>NULL;
}
do_execsql_test 10.6.3 {
  SELECT * FROM t2 WHERE term=NULL;
}
do_execsql_test 10.7.1 {
  SELECT * FROM t2 WHERE term<?;
}
do_execsql_test 10.7.2 {
  SELECT * FROM t2 WHERE term>?;
}
do_execsql_test 10.7.3 {
  SELECT * FROM t2 WHERE term=?;
}

finish_test