[sql] Import SQLite 3.17.0.

third_party/sqlite/src/ext/fts5/test/fts5ah.test

 # 2014 June 17
 #
 # 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 FTS5 module.
 #
 
 source [file join [file dirname [info script]] fts5_common.tcl]
 set testprefix fts5ah
 
 # If SQLITE_ENABLE_FTS5 is defined, omit this file.
 ifcapable !fts5 {
   finish_test
   return
 }
 
+foreach_detail_mode $testprefix {
+
 #-------------------------------------------------------------------------
 # This file contains tests for very large doclists.
 #
 
+set Y [list]
+set W [list]
 do_test 1.0 {
-  execsql { CREATE VIRTUAL TABLE t1 USING fts5(a) }
+  execsql { CREATE VIRTUAL TABLE t1 USING fts5(a, detail=%DETAIL%) }
   execsql { INSERT INTO t1(t1, rank) VALUES('pgsz', 128) }
   set v {w w w w w w w w w w w w w w w w w w w w}
   execsql { INSERT INTO t1(rowid, a) VALUES(0, $v) }
   for {set i 1} {$i <= 10000} {incr i} {
     set v {x x x x x x x x x x x x x x x x x x x x}
     if {($i % 2139)==0} {lset v 3 Y ; lappend Y $i}
     if {($i % 1577)==0} {lset v 5 W ; lappend W $i}
     execsql { INSERT INTO t1 VALUES($v) }
   }
   set v {w w w w w w w w w w w w w w w w w w w w}
@@ skipping 23 matching lines @@
 proc execsql_reads {sql} {
   set nRead [reads]
   execsql $sql
   expr [reads] - $nRead
 }
 
 do_test 1.4 {
   set nRead [reads]
   execsql { SELECT rowid FROM t1 WHERE t1 MATCH 'x' }
   set nReadX [expr [reads] - $nRead]
-  expr $nReadX>1000
+  #puts -nonewline "(nReadX=$nReadX)"
+  if {[detail_is_full]} { set expect 1000 }
+  if {[detail_is_col]}  { set expect 250 }
+  if {[detail_is_none]} { set expect 80 }
+
+  expr $nReadX>$expect
 } {1}
 
 do_test 1.5 {
   set fwd [execsql_reads {SELECT rowid FROM t1 WHERE t1 MATCH 'x' }]
   set bwd [execsql_reads {
     SELECT rowid FROM t1 WHERE t1 MATCH 'x' ORDER BY 1 ASC 
   }]
   expr {$bwd < $fwd + 12}
 } {1}
 
 foreach {tn q res} "
   1 { SELECT rowid FROM t1 WHERE t1 MATCH 'w + x'   }  [list $W]
   2 { SELECT rowid FROM t1 WHERE t1 MATCH 'x + w'   }  [list $W]
   3 { SELECT rowid FROM t1 WHERE t1 MATCH 'x AND w' }  [list $W]
   4 { SELECT rowid FROM t1 WHERE t1 MATCH 'y AND x' }  [list $Y]
 " {
+  if {[detail_is_full]==0 && ($tn==1 || $tn==2)} continue
+
+  if {[detail_is_full]} { set ratio 8 }
+  if {[detail_is_col]}  { set ratio 4 }
+  if {[detail_is_none]} { set ratio 2 }
 
   do_test 1.6.$tn.1 {
     set n [execsql_reads $q]
     #puts -nonewline "(n=$n nReadX=$nReadX)"
-    expr {$n < ($nReadX / 8)}
+    expr {$n < ($nReadX / $ratio)}
   } {1}
 
   do_test 1.6.$tn.2 {
     set n [execsql_reads "$q ORDER BY rowid DESC"]
     #puts -nonewline "(n=$n nReadX=$nReadX)"
-    expr {$n < ($nReadX / 8)}
+    expr {$n < ($nReadX / $ratio)}
   } {1}
 
   do_execsql_test 1.6.$tn.3 $q [lsort -int -incr $res]
   do_execsql_test 1.6.$tn.4 "$q ORDER BY rowid DESC" [lsort -int -decr $res]
 }
 
 #-------------------------------------------------------------------------
 # Now test that adding range constraints on the rowid field reduces the
 # number of pages loaded from disk.
 #
 foreach {tn fraction tail cnt} {
-  1 0.6 {rowid > 5000} 5000
-  2 0.2 {rowid > 9000} 1000
-  3 0.2 {rowid < 1000}  999
-  4 0.2 {rowid BETWEEN 4000 AND 5000}  1001
-  5 0.6 {rowid >= 5000} 5001
-  6 0.2 {rowid >= 9000} 1001
-  7 0.2 {rowid <= 1000} 1000
-  8 0.6 {rowid > '5000'} 5000
-  9 0.2 {rowid > '9000'} 1000
+  1  0.6 {rowid > 5000} 5000
+  2  0.2 {rowid > 9000} 1000
+  3  0.2 {rowid < 1000}  999
+  4  0.2 {rowid BETWEEN 4000 AND 5000}  1001
+  5  0.6 {rowid >= 5000} 5001
+  6  0.2 {rowid >= 9000} 1001
+  7  0.2 {rowid <= 1000} 1000
+  8  0.6 {rowid > '5000'} 5000
+  9  0.2 {rowid > '9000'} 1000
   10 0.1 {rowid = 444} 1
 } {
   set q "SELECT rowid FROM t1 WHERE t1 MATCH 'x' AND $tail"
   set n [execsql_reads $q]
   set ret [llength [execsql $q]]
 
+  # Because the position lists for 'x' are quite long in this db, the 
+  # advantage is a bit smaller in detail=none mode. Update $fraction to 
+  # reflect this.
+  if {[detail_is_none] && $fraction<0.5} { set fraction [expr $fraction*2] }
+
   do_test "1.7.$tn.asc.(n=$n ret=$ret)" {
     expr {$n < ($fraction*$nReadX) && $ret==$cnt}
   } {1}
 
   set q "SELECT rowid FROM t1 WHERE t1 MATCH 'x' AND $tail ORDER BY rowid DESC"
   set n [execsql_reads $q]
   set ret [llength [execsql $q]]
   do_test "1.7.$tn.desc.(n=$n ret=$ret)" {
     expr {$n < 2*$fraction*$nReadX && $ret==$cnt}
   } {1}
 }
 
 do_execsql_test 1.8.1 {
   SELECT count(*) FROM t1 WHERE t1 MATCH 'x' AND +rowid < 'text';
 } {10000}
 do_execsql_test 1.8.2 {
   SELECT count(*) FROM t1 WHERE t1 MATCH 'x' AND rowid < 'text';
 } {10000}
 
+} ;# foreach_detail_mode
 
 #db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t1_data} {puts $r}
 
 finish_test