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# 2015 Nov 26
#
# 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. Specifically,
# it tests the sqlite3_index_info.colUsed variable is set correctly.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix vtabI
ifcapable !vtab {
finish_test
return
}
register_echo_module db
do_execsql_test 1.0 {
CREATE TABLE t1(a, b, c, d, e);
CREATE VIRTUAL TABLE e1 USING echo(t1);
}
foreach {tn query filter} {
1 {SELECT * FROM e1}
{SELECT rowid, a, b, c, d, e FROM 't1'}
2 {SELECT a, b FROM e1}
{SELECT rowid, a, b, NULL, NULL, NULL FROM 't1'}
3 {SELECT count(*) FROM e1 GROUP BY b}
{SELECT rowid, NULL, b, NULL, NULL, NULL FROM 't1'}
4 {SELECT count(*) FROM e1 GROUP BY b HAVING a=?}
{SELECT rowid, a, b, NULL, NULL, NULL FROM 't1'}
5 {SELECT a FROM e1 WHERE c=?}
{SELECT rowid, a, NULL, c, NULL, NULL FROM 't1'}
6 {SELECT a FROM e1 ORDER BY e}
{SELECT rowid, a, NULL, NULL, NULL, e FROM 't1'}
7 {SELECT a FROM e1 ORDER BY e, d}
{SELECT rowid, a, NULL, NULL, d, e FROM 't1'}
} {
do_test 1.$tn {
set ::echo_module [list]
execsql $query
set idx [lsearch -exact $::echo_module xFilter]
lindex $::echo_module [expr $idx+1]
} $filter
}
#-------------------------------------------------------------------------
# Tests with a table with more than 64 columns.
#
proc all_col_list {} {
set L [list]
for {set i 1} {$i <= 100} {incr i} { lappend L "c$i" }
set L
}
proc part_col_list {cols} {
set L [list]
for {set i 1} {$i <= 100} {incr i} {
set c "c$i"
if {[lsearch $cols $c]>=0} {
lappend L "c$i"
} else {
lappend L NULL
}
}
set L
}
proc CL {args} {
join [part_col_list $args] ", "
}
proc CLT {args} {
set cols $args
for {set i 64} {$i <= 100} {incr i} {
lappend cols "c$i"
}
join [part_col_list $cols] ", "
}
do_test 2.0 {
execsql "CREATE TABLE t2([join [all_col_list] ,])"
execsql "CREATE VIRTUAL TABLE e2 USING echo(t2)"
} {}
foreach {tn query filter} {
1 {SELECT c1, c10, c20 FROM e2}
{SELECT rowid, [CL c1 c10 c20] FROM 't2'}
2 {SELECT c40, c50, c60 FROM e2}
{SELECT rowid, [CL c40 c50 c60] FROM 't2'}
3 {SELECT c7, c80, c90 FROM e2}
{SELECT rowid, [CLT c7] FROM 't2'}
4 {SELECT c64 FROM e2}
{SELECT rowid, [CLT c64] FROM 't2'}
5 {SELECT c63 FROM e2}
{SELECT rowid, [CL c63] FROM 't2'}
6 {SELECT c22 FROM e2 ORDER BY c50, c70}
{SELECT rowid, [CLT c22 c50] FROM 't2'}
} {
do_test 2.$tn {
set ::echo_module [list]
execsql $query
set idx [lsearch -exact $::echo_module xFilter]
lindex $::echo_module [expr $idx+1]
} [subst $filter]
}
finish_test
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