Index: third_party/sqlite/sqlite-src-3080704/test/cse.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/cse.test b/third_party/sqlite/sqlite-src-3080704/test/cse.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..57cdef5acc2c27edc7510b1c62e3d97a1fb25ea8 |
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+# 2008 April 1 |
+# |
+# 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. |
+# |
+#*********************************************************************** |
+# |
+# Test cases designed to exercise and verify the logic for |
+# factoring constant expressions out of loops and for |
+# common subexpression eliminations. |
+# |
+# $Id: cse.test,v 1.6 2008/08/04 03:51:24 danielk1977 Exp $ |
+# |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+ |
+do_test cse-1.1 { |
+ execsql { |
+ CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d, e, f); |
+ INSERT INTO t1 VALUES(1,11,12,13,14,15); |
+ INSERT INTO t1 VALUES(2,21,22,23,24,25); |
+ } |
+ execsql { |
+ SELECT b, -b, ~b, NOT b, NOT NOT b, b-b, b+b, b*b, b/b, b FROM t1 |
+ } |
+} {11 -11 -12 0 1 0 22 121 1 11 21 -21 -22 0 1 0 42 441 1 21} |
+do_test cse-1.2 { |
+ execsql { |
+ SELECT b, b%b, b==b, b!=b, b<b, b<=b, b IS NULL, b NOT NULL, b FROM t1 |
+ } |
+} {11 0 1 0 0 1 0 1 11 21 0 1 0 0 1 0 1 21} |
+do_test cse-1.3 { |
+ execsql { |
+ SELECT b, abs(b), coalesce(b,-b,NOT b,c,NOT c), c, -c FROM t1; |
+ } |
+} {11 11 11 12 -12 21 21 21 22 -22} |
+do_test cse-1.4 { |
+ execsql { |
+ SELECT CASE WHEN a==1 THEN b ELSE c END, b, c FROM t1 |
+ } |
+} {11 11 12 22 21 22} |
+do_test cse-1.5 { |
+ execsql { |
+ SELECT CASE a WHEN 1 THEN b WHEN 2 THEN c ELSE d END, b, c, d FROM t1 |
+ } |
+} {11 11 12 13 22 21 22 23} |
+do_test cse-1.6.1 { |
+ execsql { |
+ SELECT CASE b WHEN 11 THEN -b WHEN 21 THEN -c ELSE -d END, b, c, d FROM t1 |
+ } |
+} {-11 11 12 13 -22 21 22 23} |
+do_test cse-1.6.2 { |
+ execsql { |
+ SELECT CASE b+1 WHEN c THEN d WHEN e THEN f ELSE 999 END, b, c, d FROM t1 |
+ } |
+} {13 11 12 13 23 21 22 23} |
+do_test cse-1.6.3 { |
+ execsql { |
+ SELECT CASE WHEN b THEN d WHEN e THEN f ELSE 999 END, b, c, d FROM t1 |
+ } |
+} {13 11 12 13 23 21 22 23} |
+do_test cse-1.6.4 { |
+ execsql { |
+ SELECT b, c, d, CASE WHEN b THEN d WHEN e THEN f ELSE 999 END FROM t1 |
+ } |
+} {11 12 13 13 21 22 23 23} |
+do_test cse-1.6.5 { |
+ execsql { |
+ SELECT b, c, d, CASE WHEN 0 THEN d WHEN e THEN f ELSE 999 END FROM t1 |
+ } |
+} {11 12 13 15 21 22 23 25} |
+do_test cse-1.7 { |
+ execsql { |
+ SELECT a, -a, ~a, NOT a, NOT NOT a, a-a, a+a, a*a, a/a, a FROM t1 |
+ } |
+} {1 -1 -2 0 1 0 2 1 1 1 2 -2 -3 0 1 0 4 4 1 2} |
+do_test cse-1.8 { |
+ execsql { |
+ SELECT a, a%a, a==a, a!=a, a<a, a<=a, a IS NULL, a NOT NULL, a FROM t1 |
+ } |
+} {1 0 1 0 0 1 0 1 1 2 0 1 0 0 1 0 1 2} |
+do_test cse-1.9 { |
+ execsql { |
+ SELECT NOT b, ~b, NOT NOT b, b FROM t1 |
+ } |
+} {0 -12 1 11 0 -22 1 21} |
+do_test cse-1.10 { |
+ execsql { |
+ SELECT CAST(b AS integer), typeof(b), CAST(b AS text), typeof(b) FROM t1 |
+ } |
+} {11 integer 11 integer 21 integer 21 integer} |
+ifcapable compound { |
+ do_test cse-1.11 { |
+ execsql { |
+ SELECT *,* FROM t1 WHERE a=2 |
+ UNION ALL |
+ SELECT *,* FROM t1 WHERE a=1 |
+ } |
+ } {2 21 22 23 24 25 2 21 22 23 24 25 1 11 12 13 14 15 1 11 12 13 14 15} |
+ do_test cse-1.12 { |
+ execsql { |
+ SELECT coalesce(b,c,d,e), a, b, c, d, e FROM t1 WHERE a=2 |
+ UNION ALL |
+ SELECT coalesce(e,d,c,b), e, d, c, b, a FROM t1 WHERE a=1 |
+ } |
+ } {21 2 21 22 23 24 14 14 13 12 11 1} |
+} |
+do_test cse-1.13 { |
+ execsql { |
+ SELECT upper(b), typeof(b), b FROM t1 |
+ } |
+} {11 integer 11 21 integer 21} |
+do_test cse-1.14 { |
+ execsql { |
+ SELECT b, typeof(b), upper(b), typeof(b), b FROM t1 |
+ } |
+} {11 integer 11 integer 11 21 integer 21 integer 21} |
+ |
+# Overflow the column cache. Create queries involving more and more |
+# columns until the cache overflows. Verify correct operation throughout. |
+# |
+do_test cse-2.1 { |
+ execsql { |
+ CREATE TABLE t2(a0,a1,a2,a3,a4,a5,a6,a7,a8,a9, |
+ a10,a11,a12,a13,a14,a15,a16,a17,a18,a19, |
+ a20,a21,a22,a23,a24,a25,a26,a27,a28,a29, |
+ a30,a31,a32,a33,a34,a35,a36,a37,a38,a39, |
+ a40,a41,a42,a43,a44,a45,a46,a47,a48,a49); |
+ INSERT INTO t2 VALUES(0,1,2,3,4,5,6,7,8,9, |
+ 10,11,12,13,14,15,16,17,18,19, |
+ 20,21,22,23,24,25,26,27,28,29, |
+ 30,31,32,33,34,35,36,37,38,39, |
+ 40,41,42,43,44,45,46,47,48,49); |
+ SELECT * FROM t2; |
+ } |
+} {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49} |
+ |
+for {set i 1} {$i<100} {incr i} { |
+ set n [expr {int(rand()*44)+5}] |
+ set colset {} |
+ set answer {} |
+ for {set j 0} {$j<$n} {incr j} { |
+ set r [expr {$j+int(rand()*5)}] |
+ if {$r>49} {set r [expr {99-$r}]} |
+ lappend colset a$j a$r |
+ lappend answer $j $r |
+ } |
+ set sql "SELECT [join $colset ,] FROM t2" |
+ do_test cse-2.2.$i { |
+ # explain $::sql |
+ execsql $::sql |
+ } $answer |
+} |
+ |
+finish_test |