[sql] Import SQLite 3.17.0.

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

Index: third_party/sqlite/src/ext/fts5/test/fts5ah.test
diff --git a/third_party/sqlite/src/ext/fts5/test/fts5ah.test b/third_party/sqlite/src/ext/fts5/test/fts5ah.test
index 6d7e39f79302bafd94ef68cc8aacc3cbee6998d0..b7beb5655b21e6bea925571815a64b953992b925 100644
--- a/third_party/sqlite/src/ext/fts5/test/fts5ah.test
+++ b/third_party/sqlite/src/ext/fts5/test/fts5ah.test
@@ -21,12 +21,16 @@ ifcapable !fts5 {
   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) }
@@ -70,7 +74,12 @@ 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 {
@@ -87,17 +96,22 @@ foreach {tn q res} "
   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]
@@ -109,21 +123,26 @@ foreach {tn q res} "
 # 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}
@@ -143,6 +162,7 @@ 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}