diff options
Diffstat (limited to 'usr/src/lib/libsqlite/test/select3.test')
-rw-r--r-- | usr/src/lib/libsqlite/test/select3.test | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/usr/src/lib/libsqlite/test/select3.test b/usr/src/lib/libsqlite/test/select3.test new file mode 100644 index 0000000000..c7a232d076 --- /dev/null +++ b/usr/src/lib/libsqlite/test/select3.test @@ -0,0 +1,228 @@ + +#pragma ident "%Z%%M% %I% %E% SMI" + +# 2001 September 15 +# +# 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 file is testing aggregate functions and the +# GROUP BY and HAVING clauses of SELECT statements. +# +# $Id: select3.test,v 1.8 2003/01/31 17:16:37 drh Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +# Build some test data +# +do_test select3-1.0 { + set fd [open data1.txt w] + for {set i 1} {$i<32} {incr i} { + for {set j 0} {pow(2,$j)<$i} {incr j} {} + puts $fd "$i\t$j" + } + close $fd + execsql { + CREATE TABLE t1(n int, log int); + COPY t1 FROM 'data1.txt' + } + file delete data1.txt + execsql {SELECT DISTINCT log FROM t1 ORDER BY log} +} {0 1 2 3 4 5} + +# Basic aggregate functions. +# +do_test select3-1.1 { + execsql {SELECT count(*) FROM t1} +} {31} +do_test select3-1.2 { + execsql { + SELECT min(n),min(log),max(n),max(log),sum(n),sum(log),avg(n),avg(log) + FROM t1 + } +} {1 0 31 5 496 124 16 4} +do_test select3-1.3 { + execsql {SELECT max(n)/avg(n), max(log)/avg(log) FROM t1} +} {1.9375 1.25} + +# Try some basic GROUP BY clauses +# +do_test select3-2.1 { + execsql {SELECT log, count(*) FROM t1 GROUP BY log ORDER BY log} +} {0 1 1 1 2 2 3 4 4 8 5 15} +do_test select3-2.2 { + execsql {SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log} +} {0 1 1 2 2 3 3 5 4 9 5 17} +do_test select3-2.3 { + execsql {SELECT log, avg(n) FROM t1 GROUP BY log ORDER BY log} +} {0 1 1 2 2 3.5 3 6.5 4 12.5 5 24} +do_test select3-2.3 { + execsql {SELECT log, avg(n)+1 FROM t1 GROUP BY log ORDER BY log} +} {0 2 1 3 2 4.5 3 7.5 4 13.5 5 25} +do_test select3-2.4 { + execsql {SELECT log, avg(n)-min(n) FROM t1 GROUP BY log ORDER BY log} +} {0 0 1 0 2 0.5 3 1.5 4 3.5 5 7} +do_test select3-2.5 { + execsql {SELECT log*2+1, avg(n)-min(n) FROM t1 GROUP BY log ORDER BY log} +} {1 0 3 0 5 0.5 7 1.5 9 3.5 11 7} +do_test select3-2.6 { + execsql { + SELECT log*2+1 as x, count(*) FROM t1 GROUP BY x ORDER BY x + } +} {1 1 3 1 5 2 7 4 9 8 11 15} +do_test select3-2.7 { + execsql { + SELECT log*2+1 AS x, count(*) AS y FROM t1 GROUP BY x ORDER BY y + } +} {1 1 3 1 5 2 7 4 9 8 11 15} +do_test select3-2.8 { + execsql { + SELECT log*2+1 AS x, count(*) AS y FROM t1 GROUP BY x ORDER BY 10-(x+y) + } +} {11 15 9 8 7 4 5 2 3 1 1 1} +do_test select3-2.9 { + catchsql { + SELECT log, count(*) FROM t1 GROUP BY 'x' ORDER BY log; + } +} {1 {GROUP BY terms must not be non-integer constants}} +do_test select3-2.10 { + catchsql { + SELECT log, count(*) FROM t1 GROUP BY 0 ORDER BY log; + } +} {1 {GROUP BY column number 0 out of range - should be between 1 and 2}} +do_test select3-2.11 { + catchsql { + SELECT log, count(*) FROM t1 GROUP BY 3 ORDER BY log; + } +} {1 {GROUP BY column number 3 out of range - should be between 1 and 2}} +do_test select3-2.12 { + catchsql { + SELECT log, count(*) FROM t1 GROUP BY 1 ORDER BY log; + } +} {0 {0 1 1 1 2 2 3 4 4 8 5 15}} +#do_test select3-2.13 { +# catchsql { +# SELECT log, count(*) FROM t1 GROUP BY 2 ORDER BY log; +# } +#} {0 {0 1 1 1 2 2 3 4 4 8 5 15}} +#do_test select3-2.14 { +# catchsql { +# SELECT log, count(*) FROM t1 GROUP BY count(*) ORDER BY log; +# } +#} {0 {0 1 1 1 2 2 3 4 4 8 5 15}} + +# Cannot have a HAVING without a GROUP BY +# +do_test select3-3.1 { + set v [catch {execsql {SELECT log, count(*) FROM t1 HAVING log>=4}} msg] + lappend v $msg +} {1 {a GROUP BY clause is required before HAVING}} + +# Toss in some HAVING clauses +# +do_test select3-4.1 { + execsql {SELECT log, count(*) FROM t1 GROUP BY log HAVING log>=4 ORDER BY log} +} {4 8 5 15} +do_test select3-4.2 { + execsql { + SELECT log, count(*) FROM t1 + GROUP BY log + HAVING count(*)>=4 + ORDER BY log + } +} {3 4 4 8 5 15} +do_test select3-4.3 { + execsql { + SELECT log, count(*) FROM t1 + GROUP BY log + HAVING count(*)>=4 + ORDER BY max(n) + } +} {3 4 4 8 5 15} +do_test select3-4.4 { + execsql { + SELECT log AS x, count(*) AS y FROM t1 + GROUP BY x + HAVING y>=4 + ORDER BY max(n) + } +} {3 4 4 8 5 15} +do_test select3-4.5 { + execsql { + SELECT log AS x FROM t1 + GROUP BY x + HAVING count(*)>=4 + ORDER BY max(n) + } +} {3 4 5} + +do_test select3-5.1 { + execsql { + SELECT log, count(*), avg(n), max(n+log*2) FROM t1 + GROUP BY log + ORDER BY max(n+log*2), avg(n) + } +} {0 1 1 1 1 1 2 4 2 2 3.5 8 3 4 6.5 14 4 8 12.5 24 5 15 24 41} +do_test select3-5.2 { + execsql { + SELECT log, count(*), avg(n), max(n+log*2) FROM t1 + GROUP BY log + ORDER BY max(n+log*2), min(log,avg(n)) + } +} {0 1 1 1 1 1 2 4 2 2 3.5 8 3 4 6.5 14 4 8 12.5 24 5 15 24 41} + +# Test sorting of GROUP BY results in the presence of an index +# on the GROUP BY column. +# +do_test select3-6.1 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log; + } +} {0 1 1 2 2 3 3 5 4 9 5 17} +do_test select3-6.2 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log DESC; + } +} {5 17 4 9 3 5 2 3 1 2 0 1} +do_test select3-6.3 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1; + } +} {0 1 1 2 2 3 3 5 4 9 5 17} +do_test select3-6.4 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1 DESC; + } +} {5 17 4 9 3 5 2 3 1 2 0 1} +do_test select3-6.5 { + execsql { + CREATE INDEX i1 ON t1(log); + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log; + } +} {0 1 1 2 2 3 3 5 4 9 5 17} +do_test select3-6.6 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log DESC; + } +} {5 17 4 9 3 5 2 3 1 2 0 1} +do_test select3-6.7 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1; + } +} {0 1 1 2 2 3 3 5 4 9 5 17} +do_test select3-6.8 { + execsql { + SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1 DESC; + } +} {5 17 4 9 3 5 2 3 1 2 0 1} + + + +finish_test |