[sql] Import SQLite 3.17.0.

third_party/sqlite/src/ext/fts5/tool/fts5speed.tcl

Index: third_party/sqlite/src/ext/fts5/tool/fts5speed.tcl
diff --git a/third_party/sqlite/src/ext/fts5/tool/fts5speed.tcl b/third_party/sqlite/src/ext/fts5/tool/fts5speed.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..0f38638c26ae553df7812b1ffb3ffc1b26ff7714
--- /dev/null
+++ b/third_party/sqlite/src/ext/fts5/tool/fts5speed.tcl
@@ -0,0 +1,64 @@
+
+
+set Q {
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'enron'"}
+  {25  "SELECT count(*) FROM t1 WHERE t1 MATCH 'hours'"}
+  {300 "SELECT count(*) FROM t1 WHERE t1 MATCH 'acid'"}
+  {100 "SELECT count(*) FROM t1 WHERE t1 MATCH 'loaned OR mobility OR popcore OR sunk'"}
+  {100 "SELECT count(*) FROM t1 WHERE t1 MATCH 'enron AND myapps'"}
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'en* AND my*'"}
+
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'c:t*'"}
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'a:t* OR b:t* OR c:t* OR d:t* OR e:t* OR f:t* OR g:t*'"}
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'a:t*'"}
+  {2   "SELECT count(*) FROM t1 WHERE t1 MATCH 'c:the'"}
+
+  {2   "SELECT count(*) FROM t1 WHERE t1 MATCH 'd:holmes OR e:holmes OR f:holmes OR g:holmes'" }
+  {2   "SELECT count(*) FROM t1 WHERE t1 MATCH 'd:holmes AND e:holmes AND f:holmes AND g:holmes'" }
+  {4   "SELECT count(*) FROM t1 WHERE t1 MATCH 'd:holmes NOT e:holmes'" }
+}
+
+proc usage {} {
+  global Q
+  puts stderr "Usage: $::argv0 DATABASE QUERY"
+  puts stderr ""
+  for {set i 1} {$i <= [llength $Q]} {incr i} {
+    puts stderr "       $i. [lindex $Q [expr $i-1]]"
+  }
+  puts stderr ""
+  exit -1
+}
+
+
+set nArg [llength $argv]
+if {$nArg!=2 && $nArg!=3} usage
+set database [lindex $argv 0]
+set iquery [lindex $argv 1]
+if {$iquery<1 || $iquery>[llength $Q]} usage
+set nRepeat 0
+if {$nArg==3} { set nRepeat [lindex $argv 2] }
+
+
+sqlite3 db $database
+catch { load_static_extension db fts5 }
+
+incr iquery -1
+set sql [lindex $Q $iquery 1]
+if {$nRepeat==0} {
+  set nRepeat [lindex $Q $iquery 0]
+}
+
+puts "sql:     $sql"
+puts "nRepeat: $nRepeat"
+if {[regexp matchinfo $sql]} {
+  sqlite3_fts5_register_matchinfo db
+  db eval $sql 
+} else {
+  puts "result:  [db eval $sql]"
+}
+
+for {set i 1} {$i < $nRepeat} {incr i} {
+  db eval $sql
+}
+
+