upstream 3.7.9

test/subquery2.test

@@ -0,0 +1,86 @@
+# 2011 September 16
+#
+# 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.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing correlated subqueries
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+do_test subquery2-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    INSERT INTO t1 VALUES(5,6);
+    INSERT INTO t1 VALUES(7,8);
+    CREATE TABLE t2(c,d);
+    INSERT INTO t2 VALUES(1,1);
+    INSERT INTO t2 VALUES(3,9);
+    INSERT INTO t2 VALUES(5,25);
+    INSERT INTO t2 VALUES(7,49);
+    CREATE TABLE t3(e,f);
+    INSERT INTO t3 VALUES(1,1);
+    INSERT INTO t3 VALUES(3,27);
+    INSERT INTO t3 VALUES(5,125);
+    INSERT INTO t3 VALUES(7,343);
+    COMMIT;
+  }
+  execsql {
+    SELECT a FROM t1
+     WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1 3 5 7}
+do_test subquery2-1.2 {
+  execsql {
+    CREATE INDEX t1b ON t1(b);
+    SELECT a FROM t1
+     WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1 3 5 7}
+
+do_test subquery2-1.11 {
+  execsql {
+    SELECT a FROM t1
+     WHERE +b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1}
+do_test subquery2-1.12 {
+  execsql {
+    SELECT a FROM t1
+     WHERE b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1}
+
+do_test subquery2-1.21 {
+  execsql {
+    SELECT a FROM t1
+     WHERE +b=(SELECT x+1 FROM 
+                 (SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
+  }
+} {1 3 5 7}
+do_test subquery2-1.22 {
+  execsql {
+    SELECT a FROM t1
+     WHERE b=(SELECT x+1 FROM 
+                 (SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
+  }
+} {1 3 5 7}
+
+
+finish_test