Index: third_party/sqlite/sqlite-src-3080704/test/cost.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/cost.test b/third_party/sqlite/sqlite-src-3080704/test/cost.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..92fff9c88831b3445a5192e7f90264badf413409 |
--- /dev/null |
+++ b/third_party/sqlite/sqlite-src-3080704/test/cost.test |
@@ -0,0 +1,292 @@ |
+# 2014-04-26 |
+# |
+# 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. |
+# |
+#*********************************************************************** |
+# |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+set testprefix cost |
+ |
+ |
+do_execsql_test 1.1 { |
+ CREATE TABLE t3(id INTEGER PRIMARY KEY, b NOT NULL); |
+ CREATE TABLE t4(c, d, e); |
+ CREATE UNIQUE INDEX i3 ON t3(b); |
+ CREATE UNIQUE INDEX i4 ON t4(c, d); |
+} |
+do_eqp_test 1.2 { |
+ SELECT e FROM t3, t4 WHERE b=c ORDER BY b, d; |
+} { |
+ 0 0 0 {SCAN TABLE t3 USING COVERING INDEX i3} |
+ 0 1 1 {SEARCH TABLE t4 USING INDEX i4 (c=?)} |
+} |
+ |
+ |
+do_execsql_test 2.1 { |
+ CREATE TABLE t1(a, b); |
+ CREATE INDEX i1 ON t1(a); |
+} |
+ |
+# It is better to use an index for ORDER BY than sort externally, even |
+# if the index is a non-covering index. |
+do_eqp_test 2.2 { |
+ SELECT * FROM t1 ORDER BY a; |
+} { |
+ 0 0 0 {SCAN TABLE t1 USING INDEX i1} |
+} |
+ |
+do_execsql_test 3.1 { |
+ CREATE TABLE t5(a INTEGER PRIMARY KEY,b,c,d,e,f,g); |
+ CREATE INDEX t5b ON t5(b); |
+ CREATE INDEX t5c ON t5(c); |
+ CREATE INDEX t5d ON t5(d); |
+ CREATE INDEX t5e ON t5(e); |
+ CREATE INDEX t5f ON t5(f); |
+ CREATE INDEX t5g ON t5(g); |
+} |
+ |
+do_eqp_test 3.2 { |
+ SELECT a FROM t5 |
+ WHERE b IS NULL OR c IS NULL OR d IS NULL |
+ ORDER BY a; |
+} { |
+ 0 0 0 {SEARCH TABLE t5 USING INDEX t5b (b=?)} |
+ 0 0 0 {SEARCH TABLE t5 USING INDEX t5c (c=?)} |
+ 0 0 0 {SEARCH TABLE t5 USING INDEX t5d (d=?)} |
+ 0 0 0 {USE TEMP B-TREE FOR ORDER BY} |
+} |
+ |
+#------------------------------------------------------------------------- |
+# If there is no likelihood() or stat3 data, SQLite assumes that a closed |
+# range scan (e.g. one constrained by "col BETWEEN ? AND ?" constraint) |
+# visits 1/64 of the rows in a table. |
+# |
+# Note: 1/63 =~ 0.016 |
+# Note: 1/65 =~ 0.015 |
+# |
+reset_db |
+do_execsql_test 4.1 { |
+ CREATE TABLE t1(a, b); |
+ CREATE INDEX i1 ON t1(a); |
+ CREATE INDEX i2 ON t1(b); |
+} |
+do_eqp_test 4.2 { |
+ SELECT * FROM t1 WHERE likelihood(a=?, 0.014) AND b BETWEEN ? AND ?; |
+} { |
+ 0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?)} |
+} |
+do_eqp_test 4.3 { |
+ SELECT * FROM t1 WHERE likelihood(a=?, 0.016) AND b BETWEEN ? AND ?; |
+} { |
+ 0 0 0 {SEARCH TABLE t1 USING INDEX i2 (b>? AND b<?)} |
+} |
+ |
+ |
+#------------------------------------------------------------------------- |
+# |
+reset_db |
+do_execsql_test 5.1 { |
+ CREATE TABLE t2(x, y); |
+ CREATE INDEX t2i1 ON t2(x); |
+} |
+ |
+do_eqp_test 5.2 { |
+ SELECT * FROM t2 ORDER BY x, y; |
+} { |
+ 0 0 0 {SCAN TABLE t2 USING INDEX t2i1} |
+ 0 0 0 {USE TEMP B-TREE FOR RIGHT PART OF ORDER BY} |
+} |
+ |
+do_eqp_test 5.3 { |
+ SELECT * FROM t2 WHERE x BETWEEN ? AND ? ORDER BY rowid; |
+} { |
+ 0 0 0 {SEARCH TABLE t2 USING INDEX t2i1 (x>? AND x<?)} |
+ 0 0 0 {USE TEMP B-TREE FOR ORDER BY} |
+} |
+ |
+# where7.test, where8.test: |
+# |
+do_execsql_test 6.1 { |
+ CREATE TABLE t3(a INTEGER PRIMARY KEY, b, c); |
+ CREATE INDEX t3i1 ON t3(b); |
+ CREATE INDEX t3i2 ON t3(c); |
+} |
+ |
+do_eqp_test 6.2 { |
+ SELECT a FROM t3 WHERE (b BETWEEN 2 AND 4) OR c=100 ORDER BY a |
+} { |
+ 0 0 0 {SEARCH TABLE t3 USING INDEX t3i1 (b>? AND b<?)} |
+ 0 0 0 {SEARCH TABLE t3 USING INDEX t3i2 (c=?)} |
+ 0 0 0 {USE TEMP B-TREE FOR ORDER BY} |
+} |
+ |
+#------------------------------------------------------------------------- |
+# |
+reset_db |
+do_execsql_test 7.1 { |
+ CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d,e,f,g); |
+ CREATE INDEX t1b ON t1(b); |
+ CREATE INDEX t1c ON t1(c); |
+ CREATE INDEX t1d ON t1(d); |
+ CREATE INDEX t1e ON t1(e); |
+ CREATE INDEX t1f ON t1(f); |
+ CREATE INDEX t1g ON t1(g); |
+} |
+ |
+do_eqp_test 7.2 { |
+ SELECT a FROM t1 |
+ WHERE (b>=950 AND b<=1010) OR (b IS NULL AND c NOT NULL) |
+ ORDER BY a |
+} { |
+ 0 0 0 {SEARCH TABLE t1 USING INDEX t1b (b>? AND b<?)} |
+ 0 0 0 {SEARCH TABLE t1 USING INDEX t1b (b=?)} |
+ 0 0 0 {USE TEMP B-TREE FOR ORDER BY} |
+} |
+ |
+do_eqp_test 7.3 { |
+ SELECT rowid FROM t1 |
+ WHERE (+b IS NULL AND c NOT NULL AND d NOT NULL) |
+ OR (b NOT NULL AND c IS NULL AND d NOT NULL) |
+ OR (b NOT NULL AND c NOT NULL AND d IS NULL) |
+} { |
+ 0 0 0 {SCAN TABLE t1} |
+} |
+ |
+do_eqp_test 7.4 { |
+ SELECT rowid FROM t1 WHERE (+b IS NULL AND c NOT NULL) OR c IS NULL |
+} { |
+ 0 0 0 {SCAN TABLE t1} |
+} |
+ |
+#------------------------------------------------------------------------- |
+# |
+reset_db |
+do_execsql_test 8.1 { |
+ CREATE TABLE composer( |
+ cid INTEGER PRIMARY KEY, |
+ cname TEXT |
+ ); |
+ CREATE TABLE album( |
+ aid INTEGER PRIMARY KEY, |
+ aname TEXT |
+ ); |
+ CREATE TABLE track( |
+ tid INTEGER PRIMARY KEY, |
+ cid INTEGER REFERENCES composer, |
+ aid INTEGER REFERENCES album, |
+ title TEXT |
+ ); |
+ CREATE INDEX track_i1 ON track(cid); |
+ CREATE INDEX track_i2 ON track(aid); |
+} |
+ |
+do_eqp_test 8.2 { |
+ SELECT DISTINCT aname |
+ FROM album, composer, track |
+ WHERE cname LIKE '%bach%' |
+ AND unlikely(composer.cid=track.cid) |
+ AND unlikely(album.aid=track.aid); |
+} { |
+ 0 0 2 {SCAN TABLE track} |
+ 0 1 0 {SEARCH TABLE album USING INTEGER PRIMARY KEY (rowid=?)} |
+ 0 2 1 {SEARCH TABLE composer USING INTEGER PRIMARY KEY (rowid=?)} |
+ 0 0 0 {USE TEMP B-TREE FOR DISTINCT} |
+} |
+ |
+#------------------------------------------------------------------------- |
+# |
+do_execsql_test 9.1 { |
+ CREATE TABLE t1( |
+ a,b,c,d,e, f,g,h,i,j, |
+ k,l,m,n,o, p,q,r,s,t |
+ ); |
+ CREATE INDEX i1 ON t1(k,l,m,n,o,p,q,r,s,t); |
+} |
+do_test 9.2 { |
+ for {set i 0} {$i < 100} {incr i} { |
+ execsql { INSERT INTO t1 DEFAULT VALUES } |
+ } |
+ execsql { |
+ ANALYZE; |
+ CREATE INDEX i2 ON t1(a,b,c,d,e,f,g,h,i,j); |
+ } |
+} {} |
+ |
+set L [list a=? b=? c=? d=? e=? f=? g=? h=? i=? j=?] |
+foreach {tn nTerm nRow} { |
+ 1 1 10 |
+ 2 2 9 |
+ 3 3 8 |
+ 4 4 7 |
+ 5 5 6 |
+ 6 6 5 |
+ 7 7 5 |
+ 8 8 5 |
+ 9 9 5 |
+ 10 10 5 |
+} { |
+ set w [join [lrange $L 0 [expr $nTerm-1]] " AND "] |
+ set p1 [expr ($nRow-1) / 100.0] |
+ set p2 [expr ($nRow+1) / 100.0] |
+ |
+ set sql1 "SELECT * FROM t1 WHERE likelihood(k=?, $p1) AND $w" |
+ set sql2 "SELECT * FROM t1 WHERE likelihood(k=?, $p2) AND $w" |
+ |
+ do_eqp_test 9.3.$tn.1 $sql1 {/INDEX i1/} |
+ do_eqp_test 9.3.$tn.2 $sql2 {/INDEX i2/} |
+} |
+ |
+ |
+#------------------------------------------------------------------------- |
+# |
+ |
+ifcapable stat4 { |
+ do_execsql_test 10.1 { |
+ CREATE TABLE t6(a, b, c); |
+ CREATE INDEX t6i1 ON t6(a, b); |
+ CREATE INDEX t6i2 ON t6(c); |
+ } |
+ |
+ do_test 10.2 { |
+ for {set i 0} {$i < 16} {incr i} { |
+ execsql { INSERT INTO t6 VALUES($i%4, 'xyz', $i%8) } |
+ } |
+ execsql ANALYZE |
+ } {} |
+ |
+ do_eqp_test 10.3 { |
+ SELECT rowid FROM t6 WHERE a=0 AND c=0 |
+ } { |
+ 0 0 0 {SEARCH TABLE t6 USING INDEX t6i2 (c=?)} |
+ } |
+ |
+ do_eqp_test 10.4 { |
+ SELECT rowid FROM t6 WHERE a=0 AND b='xyz' AND c=0 |
+ } { |
+ 0 0 0 {SEARCH TABLE t6 USING INDEX t6i2 (c=?)} |
+ } |
+ |
+ do_eqp_test 10.5 { |
+ SELECT rowid FROM t6 WHERE likelihood(a=0, 0.1) AND c=0 |
+ } { |
+ 0 0 0 {SEARCH TABLE t6 USING INDEX t6i1 (a=?)} |
+ } |
+ |
+ do_eqp_test 10.6 { |
+ SELECT rowid FROM t6 WHERE likelihood(a=0, 0.1) AND b='xyz' AND c=0 |
+ } { |
+ 0 0 0 {SEARCH TABLE t6 USING INDEX t6i1 (a=? AND b=?)} |
+ } |
+} |
+ |
+finish_test |
+ |
+ |
+ |