[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/whereI.test

+# 2014-03-31
+#
+# 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.
+#
+#***********************************************************************
+# The focus of this file is testing the OR optimization on WITHOUT ROWID 
+# tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereI
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 'a', 'z');
+  INSERT INTO t1 VALUES(2, 'b', 'y');
+  INSERT INTO t1 VALUES(3, 'c', 'x');
+  INSERT INTO t1 VALUES(4, 'd', 'w');
+  CREATE INDEX i1 ON t1(b);
+  CREATE INDEX i2 ON t1(c);
+}
+
+do_eqp_test 1.1 {
+  SELECT a FROM t1 WHERE b='b' OR c='x'
+} {
+  0 0 0 {SEARCH TABLE t1 USING INDEX i1 (b=?)} 
+  0 0 0 {SEARCH TABLE t1 USING INDEX i2 (c=?)}
+}
+
+do_execsql_test 1.2 {
+  SELECT a FROM t1 WHERE b='b' OR c='x'
+} {2 3}
+
+do_execsql_test 1.3 {
+  SELECT a FROM t1 WHERE b='a' OR c='z'
+} {1}
+
+#----------------------------------------------------------------------
+# Try that again, this time with non integer PRIMARY KEY values.
+#
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
+  INSERT INTO t2 VALUES('i', 'a', 'z');
+  INSERT INTO t2 VALUES('ii', 'b', 'y');
+  INSERT INTO t2 VALUES('iii', 'c', 'x');
+  INSERT INTO t2 VALUES('iv', 'd', 'w');
+  CREATE INDEX i3 ON t2(b);
+  CREATE INDEX i4 ON t2(c);
+}
+
+do_eqp_test 2.1 {
+  SELECT a FROM t2 WHERE b='b' OR c='x'
+} {
+  0 0 0 {SEARCH TABLE t2 USING INDEX i3 (b=?)} 
+  0 0 0 {SEARCH TABLE t2 USING INDEX i4 (c=?)}
+}
+
+do_execsql_test 2.2 {
+  SELECT a FROM t2 WHERE b='b' OR c='x'
+} {ii iii}
+
+do_execsql_test 2.3 {
+  SELECT a FROM t2 WHERE b='a' OR c='z'
+} {i}
+
+#----------------------------------------------------------------------
+# On a table with a multi-column PK.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t3(a, b, c, d, PRIMARY KEY(c, b)) WITHOUT ROWID;
+
+  INSERT INTO t3 VALUES('f', 1, 1, 'o');
+  INSERT INTO t3 VALUES('o', 2, 1, 't');
+  INSERT INTO t3 VALUES('t', 1, 2, 't');
+  INSERT INTO t3 VALUES('t', 2, 2, 'f');
+
+  CREATE INDEX t3i1 ON t3(d);
+  CREATE INDEX t3i2 ON t3(a);
+
+  SELECT c||'.'||b FROM t3 WHERE a='t' OR d='t'
+} {
+  2.1 2.2 1.2
+}
+
+finish_test
+