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Enhancements to the DELETE command (CVS 194)

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FossilOrigin-Name: daea156e2430762e683ff5460f9f8bb3204ae168
This commit is contained in:
drh
2001-03-20 22:05:00 +00:00
parent 8721f00485
commit 0353cedda4
12 changed files with 211 additions and 236 deletions
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54
test/delete.test
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@ -23,7 +23,7 @@
# This file implements regression tests for SQLite library. The
# focus of this file is testing the DELETE FROM statement.
#
# $Id: delete.test,v 1.7 2001/03/20 12:55:14 drh Exp $
# $Id: delete.test,v 1.8 2001/03/20 22:05:00 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -118,4 +118,56 @@ do_test delete-5.7 {
execsql {SELECT f1 FROM table1 ORDER BY f1}
} {48}
# Delete large quantities of data. We want to test the List overflow
# mechanism in the vdbe.
#
do_test delete-6.1 {
set fd [open data1.txt w]
for {set i 1} {$i<=3000} {incr i} {
puts $fd "[expr {$i}]\t[expr {$i*$i}]"
}
close $fd
execsql {DELETE FROM table1}
execsql {COPY table1 FROM 'data1.txt'}
execsql {DELETE FROM table2}
execsql {COPY table2 FROM 'data1.txt'}
file delete data1.txt
execsql {SELECT count(*) FROM table1}
} {3000}
do_test delete-6.2 {
execsql {SELECT count(*) FROM table2}
} {3000}
do_test delete-6.3 {
execsql {SELECT f1 FROM table1 WHERE f1<10 ORDER BY f1}
} {1 2 3 4 5 6 7 8 9}
do_test delete-6.4 {
execsql {SELECT f1 FROM table2 WHERE f1<10 ORDER BY f1}
} {1 2 3 4 5 6 7 8 9}
do_test delete-6.5 {
execsql {DELETE FROM table1 WHERE f1>7}
execsql {SELECT f1 FROM table1 ORDER BY f1}
} {1 2 3 4 5 6 7}
do_test delete-6.6 {
execsql {DELETE FROM table2 WHERE f1>7}
execsql {SELECT f1 FROM table2 ORDER BY f1}
} {1 2 3 4 5 6 7}
do_test delete-6.7 {
execsql {DELETE FROM table1}
execsql {SELECT f1 FROM table1}
} {}
do_test delete-6.8 {
execsql {INSERT INTO table1 VALUES(2,3)}
execsql {SELECT f1 FROM table1}
} {2}
do_test delete-6.9 {
execsql {DELETE FROM table2}
execsql {SELECT f1 FROM table2}
} {}
do_test delete-6.10 {
execsql {INSERT INTO table2 VALUES(2,3)}
execsql {SELECT f1 FROM table2}
} {2}
finish_test