100 lines
2.6 KiB
Plaintext
100 lines
2.6 KiB
Plaintext
# 2001 September 15
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing aggregate functions and the
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# GROUP BY and HAVING clauses of SELECT statements.
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#
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# $Id: select5.test,v 1.5 2001/09/16 00:13:28 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Build some test data
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#
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set fd [open data1.txt w]
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for {set i 1} {$i<32} {incr i} {
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for {set j 0} {pow(2,$j)<$i} {incr j} {}
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puts $fd "[expr {32-$i}]\t[expr {10-$j}]"
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}
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close $fd
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execsql {
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CREATE TABLE t1(x int, y int);
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COPY t1 FROM 'data1.txt'
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}
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file delete data1.txt
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do_test select5-1.0 {
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execsql {SELECT DISTINCT y FROM t1 ORDER BY y}
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} {5 6 7 8 9 10}
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# Sort by an aggregate function.
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#
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do_test select5-1.1 {
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execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY y}
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} {5 15 6 8 7 4 8 2 9 1 10 1}
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do_test select5-1.2 {
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execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY count(*), y}
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} {9 1 10 1 8 2 7 4 6 8 5 15}
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do_test select5-1.3 {
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execsql {SELECT count(*), y FROM t1 GROUP BY y ORDER BY count(*), y}
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} {1 9 1 10 2 8 4 7 8 6 15 5}
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# Some error messages associated with aggregates and GROUP BY
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#
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do_test select5-2.1 {
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set v [catch {execsql {
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SELECT y, count(*) FROM t1 GROUP BY z ORDER BY y
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}} msg]
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lappend v $msg
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} {1 {no such column: z}}
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do_test select5-2.2 {
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set v [catch {execsql {
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SELECT y, count(*) FROM t1 GROUP BY z(y) ORDER BY y
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}} msg]
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lappend v $msg
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} {1 {no such function: z}}
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do_test select5-2.3 {
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set v [catch {execsql {
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SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<3 ORDER BY y
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}} msg]
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lappend v $msg
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} {0 {8 2 9 1 10 1}}
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do_test select5-2.4 {
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set v [catch {execsql {
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SELECT y, count(*) FROM t1 GROUP BY y HAVING z(y)<3 ORDER BY y
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}} msg]
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lappend v $msg
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} {1 {no such function: z}}
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do_test select5-2.5 {
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set v [catch {execsql {
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SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<z ORDER BY y
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}} msg]
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lappend v $msg
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} {1 {no such column: z}}
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# Get the Agg function to rehash in vdbe.c
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#
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do_test select5-3.1 {
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execsql {
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SELECT x, count(*), avg(y) FROM t1 GROUP BY x HAVING x<4 ORDER BY x
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}
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} {1 1 5 2 1 5 3 1 5}
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# Run the AVG() function when the count is zero.
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#
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do_test select5-4.1 {
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execsql {
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SELECT avg(x) FROM t1 WHERE x>100
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}
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} {}
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finish_test
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