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+# 2012 February 02
+#
+# 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 for queries of the form:
+#
+# SELECT p, max(q) FROM t1;
+#
+# Demonstration that the value returned for p is on the same row as
+# the maximum q.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+ finish_test
+ return
+}
+
+do_test minmax4-1.1 {
+ db eval {
+ CREATE TABLE t1(p,q);
+ SELECT p, max(q) FROM t1;
+ }
+} {{} {}}
+do_test minmax4-1.2 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {{} {}}
+do_test minmax4-1.3 {
+ db eval {
+ INSERT INTO t1 VALUES(1,2);
+ SELECT p, max(q) FROM t1;
+ }
+} {1 2}
+do_test minmax4-1.4 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {1 2}
+do_test minmax4-1.5 {
+ db eval {
+ INSERT INTO t1 VALUES(3,4);
+ SELECT p, max(q) FROM t1;
+ }
+} {3 4}
+do_test minmax4-1.6 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {1 2}
+do_test minmax4-1.7 {
+ db eval {
+ INSERT INTO t1 VALUES(5,0);
+ SELECT p, max(q) FROM t1;
+ }
+} {3 4}
+do_test minmax4-1.8 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {5 0}
+do_test minmax4-1.9 {
+ db eval {
+ INSERT INTO t1 VALUES(6,1);
+ SELECT p, max(q) FROM t1;
+ }
+} {3 4}
+do_test minmax4-1.10 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {5 0}
+do_test minmax4-1.11 {
+ db eval {
+ INSERT INTO t1 VALUES(7,NULL);
+ SELECT p, max(q) FROM t1;
+ }
+} {3 4}
+do_test minmax4-1.12 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {5 0}
+do_test minmax4-1.13 {
+ db eval {
+ DELETE FROM t1 WHERE q IS NOT NULL;
+ SELECT p, max(q) FROM t1;
+ }
+} {7 {}}
+do_test minmax4-1.14 {
+ db eval {
+ SELECT p, min(q) FROM t1;
+ }
+} {7 {}}
+
+do_test minmax4-2.1 {
+ db eval {
+ CREATE TABLE t2(a,b,c);
+ INSERT INTO t2 VALUES
+ (1,null,2),
+ (1,2,3),
+ (1,1,4),
+ (2,3,5);
+ SELECT a, max(b), c FROM t2 GROUP BY a ORDER BY a;
+ }
+} {1 2 3 2 3 5}
+do_test minmax4-2.2 {
+ db eval {
+ SELECT a, min(b), c FROM t2 GROUP BY a ORDER BY a;
+ }
+} {1 1 4 2 3 5}
+do_test minmax4-2.3 {
+ db eval {
+ SELECT a, min(b), avg(b), count(b), c FROM t2 GROUP BY a ORDER BY a DESC;
+ }
+} {2 3 3.0 1 5 1 1 1.5 2 4}
+do_test minmax4-2.4 {
+ db eval {
+ SELECT a, min(b), max(b), c FROM t2 GROUP BY a ORDER BY a;
+ }
+} {1 1 2 3 2 3 3 5}
+do_test minmax4-2.5 {
+ db eval {
+ SELECT a, max(b), min(b), c FROM t2 GROUP BY a ORDER BY a;
+ }
+} {1 2 1 4 2 3 3 5}
+do_test minmax4-2.6 {
+ db eval {
+ SELECT a, max(b), b, max(c), c FROM t2 GROUP BY a ORDER BY a;
+ }
+} {1 2 1 4 4 2 3 3 5 5}
+do_test minmax4-2.7 {
+ db eval {
+ SELECT a, min(b), b, min(c), c FROM t2 GROUP BY a ORDER BY a;
+ }
+} {1 1 {} 2 2 2 3 3 5 5}
+
+
+
+finish_test