79 lines
1.9 KiB
Plaintext
79 lines
1.9 KiB
Plaintext
# 2020-01-29
|
|
#
|
|
# 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.
|
|
#
|
|
#***********************************************************************
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix bestindex7
|
|
|
|
ifcapable !vtab {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
register_tcl_module db
|
|
|
|
proc vtab_command {src method args} {
|
|
switch -- $method {
|
|
xConnect {
|
|
return "CREATE TABLE xxx(a)"
|
|
}
|
|
|
|
xBestIndex {
|
|
set clist [lindex $args 0]
|
|
set iCons 0
|
|
set ret [list]
|
|
foreach cons $clist {
|
|
catch { array unset C }
|
|
array set C $cons
|
|
if {$C(usable)} {
|
|
lappend ret use $iCons
|
|
}
|
|
incr iCons
|
|
}
|
|
return $ret
|
|
}
|
|
|
|
xFilter {
|
|
return [list sql "SELECT rowid, x FROM $src"]
|
|
}
|
|
|
|
}
|
|
|
|
return {}
|
|
}
|
|
|
|
do_execsql_test 1.0 {
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1 VALUES(0), (2);
|
|
CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
|
|
}
|
|
|
|
do_execsql_test 1.1 { select * from vt1 } {0 2}
|
|
do_execsql_test 1.2 { select * from vt1 WHERE a=0 } {0}
|
|
do_execsql_test 1.3 { select * from vt1 WHERE a=1 } {}
|
|
do_execsql_test 1.4 { select * from vt1 WHERE a=1 OR a=0} {0}
|
|
|
|
do_execsql_test 1.5 {
|
|
UPDATE t1 SET x=NULL WHERE x=2;
|
|
}
|
|
|
|
do_execsql_test 1.6 { select * from vt1 } {0 {}}
|
|
do_execsql_test 1.7 { select * from vt1 WHERE a=0 } {0}
|
|
do_execsql_test 1.8 { select * from vt1 WHERE a=1 } {}
|
|
do_execsql_test 1.9 { select * from vt1 WHERE a=1 OR a=0} {0}
|
|
do_execsql_test 1.10 { select * from vt1 WHERE a IN (2) } {}
|
|
do_execsql_test 1.10 { select * from vt1 WHERE a IN (0,1,2,3) } {0}
|
|
do_execsql_test 1.11 { select * from vt1 WHERE a IN (0, NULL) } {0}
|
|
do_execsql_test 1.12 { select * from vt1 WHERE a IN (NULL) } {}
|
|
|
|
finish_test
|