151 lines
2.9 KiB
Plaintext
151 lines
2.9 KiB
Plaintext
# 2012 February 02
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# Test for queries of the form:
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#
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# SELECT p, max(q) FROM t1;
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#
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# Demonstration that the value returned for p is on the same row as
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# the maximum q.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !compound {
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finish_test
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return
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}
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do_test minmax4-1.1 {
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db eval {
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CREATE TABLE t1(p,q);
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SELECT p, max(q) FROM t1;
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}
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} {{} {}}
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do_test minmax4-1.2 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {{} {}}
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do_test minmax4-1.3 {
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db eval {
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INSERT INTO t1 VALUES(1,2);
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SELECT p, max(q) FROM t1;
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}
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} {1 2}
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do_test minmax4-1.4 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {1 2}
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do_test minmax4-1.5 {
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db eval {
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INSERT INTO t1 VALUES(3,4);
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SELECT p, max(q) FROM t1;
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}
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} {3 4}
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do_test minmax4-1.6 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {1 2}
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do_test minmax4-1.7 {
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db eval {
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INSERT INTO t1 VALUES(5,0);
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SELECT p, max(q) FROM t1;
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}
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} {3 4}
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do_test minmax4-1.8 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {5 0}
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do_test minmax4-1.9 {
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db eval {
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INSERT INTO t1 VALUES(6,1);
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SELECT p, max(q) FROM t1;
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}
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} {3 4}
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do_test minmax4-1.10 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {5 0}
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do_test minmax4-1.11 {
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db eval {
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INSERT INTO t1 VALUES(7,NULL);
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SELECT p, max(q) FROM t1;
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}
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} {3 4}
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do_test minmax4-1.12 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {5 0}
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do_test minmax4-1.13 {
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db eval {
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DELETE FROM t1 WHERE q IS NOT NULL;
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SELECT p, max(q) FROM t1;
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}
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} {7 {}}
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do_test minmax4-1.14 {
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db eval {
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SELECT p, min(q) FROM t1;
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}
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} {7 {}}
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do_test minmax4-2.1 {
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db eval {
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CREATE TABLE t2(a,b,c);
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INSERT INTO t2 VALUES
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(1,null,2),
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(1,2,3),
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(1,1,4),
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(2,3,5);
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SELECT a, max(b), c FROM t2 GROUP BY a ORDER BY a;
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}
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} {1 2 3 2 3 5}
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do_test minmax4-2.2 {
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db eval {
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SELECT a, min(b), c FROM t2 GROUP BY a ORDER BY a;
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}
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} {1 1 4 2 3 5}
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do_test minmax4-2.3 {
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db eval {
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SELECT a, min(b), avg(b), count(b), c FROM t2 GROUP BY a ORDER BY a DESC;
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}
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} {2 3 3.0 1 5 1 1 1.5 2 4}
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do_test minmax4-2.4 {
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db eval {
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SELECT a, min(b), max(b), c FROM t2 GROUP BY a ORDER BY a;
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}
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} {1 1 2 3 2 3 3 5}
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do_test minmax4-2.5 {
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db eval {
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SELECT a, max(b), min(b), c FROM t2 GROUP BY a ORDER BY a;
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}
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} {1 2 1 4 2 3 3 5}
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do_test minmax4-2.6 {
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db eval {
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SELECT a, max(b), b, max(c), c FROM t2 GROUP BY a ORDER BY a;
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}
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} {1 2 1 4 4 2 3 3 5 5}
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do_test minmax4-2.7 {
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db eval {
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SELECT a, min(b), b, min(c), c FROM t2 GROUP BY a ORDER BY a;
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}
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} {1 1 {} 2 2 2 3 3 5 5}
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finish_test
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