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sqlite/test/bestindexC.test
dan af35432400 Further tests for OR constraints on virtual tables.
FossilOrigin-Name: ff4a30056f8dbcbd045afdbee485f6671c3580b95187144aa9a77c97dfda2647
2024-05-31 20:32:10 +00:00

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# 2024-04-26
#
# 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.
#
#***********************************************************************
#
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix bestindexC
ifcapable !vtab {
finish_test
return
}
register_tcl_module db
proc vtab_command {lVal method args} {
switch -- $method {
xConnect {
return "CREATE TABLE t1(a)"
}
xBestIndex {
set hdl [lindex $args 0]
set clist [$hdl constraints]
set orderby [$hdl orderby]
set idxstr [list]
set res [list]
set idx 0
foreach c $clist {
array set a $c
if {$a(usable)==0} continue
if {$a(op)=="limit" && ![info exists ::do_not_use_limit]} {
lappend idxstr limit
lappend res omit $idx
}
if {$a(op)=="offset" && ![info exists ::do_not_use_offset]} {
lappend idxstr offset
lappend res omit $idx
}
incr idx
}
return "cost 1000000 rows 1000000 idxnum 0 idxstr {$idxstr} $res"
}
xFilter {
set idxstr [lindex $args 1]
set LIMIT ""
foreach a $idxstr b [lindex $args 2] {
set x($a) $b
}
if {![info exists x(limit)]} { set x(limit) -1 }
if {![info exists x(offset)]} { set x(offset) -1 }
set LIMIT " LIMIT $x(limit) OFFSET $x(offset)"
set idx 1
foreach v $lVal {
lappend lRow "($idx, '$v')"
incr idx
}
return [list sql "
SELECT * FROM ( VALUES [join $lRow ,]) $LIMIT
"]
}
}
return {}
}
do_execsql_test 1.0 {
CREATE VIRTUAL TABLE x1 USING tcl(vtab_command "a b c d e f");
CREATE VIRTUAL TABLE x2 USING tcl(vtab_command "A B C D E F a b");
} {}
do_execsql_test 1.1 {
CREATE TEMP TABLE t_unionall AS
SELECT * FROM x1 UNION ALL SELECT * FROM x2;
CREATE TEMP TABLE t_intersect AS
SELECT * FROM x1 INTERSECT SELECT * FROM x2;
CREATE TEMP TABLE t_union AS
SELECT * FROM x1 UNION SELECT * FROM x2;
CREATE TEMP TABLE t_except AS
SELECT * FROM x1 EXCEPT SELECT * FROM x2;
}
foreach {tn limit} {
1 "LIMIT 8"
2 "LIMIT 4"
3 "LIMIT 4 OFFSET 2"
4 "LIMIT 8 OFFSET 4"
} {
foreach {op tbl} {
"UNION ALL" t_unionall
"UNION" t_union
"INTERSECT" t_intersect
"EXCEPT" t_except
} {
set expect [execsql "SELECT * FROM $tbl $limit"]
do_execsql_test 1.2.$tbl.$tn "SELECT * FROM (
SELECT * FROM x1 $op SELECT * FROM x2
) $limit" $expect
}
}
#-------------------------------------------------------------------------
reset_db
register_tcl_module db
do_execsql_test 2.0 {
CREATE VIRTUAL TABLE x1 USING tcl(vtab_command "a b c d e f");
CREATE VIRTUAL TABLE x2 USING tcl(vtab_command "a b e f");
} {}
do_execsql_test 2.1 {
SELECT * FROM x1
EXCEPT
SELECT * FROM x2
LIMIT 3
} {c d}
#-------------------------------------------------------------------------
reset_db
register_tcl_module db
do_execsql_test 3.0 {
CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "1 2 3 4 5 6 7 8 9 10");
} {}
do_execsql_test 3.1 {
SELECT * FROM y1 WHERE a = COALESCE('8', a) LIMIT 3
} {8}
do_execsql_test 3.2 {
SELECT * FROM y1 WHERE a = '2' LIMIT 3
} {2}
load_static_extension db series
do_execsql_test 3.3 {
SELECT * FROM generate_series(1, 5) WHERE value = (value & 14) LIMIT 3
} {2 4}
do_execsql_test 3.4 {
SELECT value FROM generate_series(1,10) WHERE value>2 LIMIT 4 OFFSET 1;
} {4 5 6 7}
set ::do_not_use_limit 1
do_execsql_test 3.5 {
SELECT * FROM y1 LIMIT 5 OFFSET 3
} {4 5 6 7 8}
unset ::do_not_use_limit
set ::do_not_use_offset 1
do_execsql_test 3.6 {
SELECT * FROM y1 LIMIT 5 OFFSET 3
} {4 5 6 7 8}
unset ::do_not_use_offset
#-------------------------------------------------------------------------
reset_db
proc vtab_command {lVal method args} {
switch -- $method {
xConnect { error "not happy!" }
}
return {}
}
register_tcl_module db
do_catchsql_test 4.0 {
CREATE VIRTUAL TABLE y1 USING tcl(vtab_command 1);
} {1 {not happy!}}
do_test 4.1 {
sqlite3_errcode db
} SQLITE_ERROR
proc vtab_command {lVal method args} {
switch -- $method {
xConnect {
return $lVal
}
}
return {}
}
do_catchsql_test 4.2 {
CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "PRAGMA page_size=1024");
} {1 {declare_vtab: syntax error}}
do_catchsql_test 4.3 {
CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "CREATE TABLE x1(");
} {1 {declare_vtab: incomplete input}}
do_catchsql_test 4.4 {
CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "CREATE TABLE x1(insert)");
} {1 {declare_vtab: near "insert": syntax error}}
#-------------------------------------------------------------------------
reset_db
register_tcl_module db
proc quote {str} {
return "'[string map {' ''} $str]'"
}
proc vtab_command {lVal method args} {
switch -- $method {
xConnect {
return "CREATE TABLE t1(a, b, c, d)"
}
xBestIndex {
set hdl [lindex $args 0]
set clist [$hdl constraints]
set res [list]
set idx 0
set idxnum 0
set cols(0) a
set cols(1) b
set cols(2) c
set lCons [list]
foreach c $clist {
array set a $c
if {$a(usable)==0} continue
if {($a(op)=="eq" || $a(op)=="is") && [info exists cols($a(column))]} {
lappend res omit $idx
set coll [$hdl collation $idx]
lappend lCons "$cols($a(column)) = %[llength $lCons]% COLLATE $coll"
set idxnum [expr {$idx + (1 << $a(column))}]
catch { unset cols($a(column)) }
}
incr idx
}
if {[llength [array names cols]]>0} {
set missing [list]
for {set i 0} {$i < 3} {incr i} {
catch { lappend missing $cols($i) }
}
set msg "missing required constraints: [join $missing ,]"
return [list constraint $msg]
}
set idxstr [join $lCons " AND "]
return "cost 1000 rows 1000 idxnum $idxnum $res idxstr {$idxstr}"
}
xFilter {
foreach {idxnum idxstr lArg} $args {}
set i 0
set where $idxstr
foreach a $lArg {
set where [string map [list %$i% [quote $a]] $where]
incr i
}
# puts $where
return [list sql "SELECT rowid, * FROM $lVal WHERE $where"]
}
}
return {}
}
do_execsql_test 5.1 {
CREATE VIRTUAL TABLE x1 USING tcl(vtab_command t1);
CREATE TABLE t1(a, b, c, d);
}
foreach {tn where ok} {
0 "WHERE a=? AND b=? AND c=? AND c=?" 1
1 "WHERE a=? AND b=? AND c=?" 1
2 "WHERE a=? AND b=? AND (c=? OR c=?)" 1
3 "WHERE a=? AND b=? AND (c=? OR c=? OR c=?)" 1
4 "WHERE a=? AND b=? AND (c IS ? OR c IS ?)" 1
5 "WHERE a=? AND ((b=? AND c=?) OR (c=? AND b=?))" 1
6 "WHERE a=? AND ((b=? AND c=?) OR (c=?))" 0
} {
do_test 5.2.$tn {
catch { execsql "SELECT * FROM x1 $::where" } msg
# if {$tn==0 || $tn==2 || $tn==3} { puts "MSG: $msg" }
} [expr !$ok]
}
do_execsql_test 5.3 {
SELECT * FROM x1 WHERE (a, b, c) = (?, ?, ?);
}
do_execsql_test 5.4 {
INSERT INTO t1(rowid, a, b, c, d) VALUES(1, 'x', 'y', 'z', 'one');
INSERT INTO t1(rowid, a, b, c, d) VALUES(2, 'X', 'Y', 'Z', 'two');
SELECT * FROM x1 WHERE (a, b, c) = ('X', 'Y', 'Z');
} {X Y Z two}
do_execsql_test 5.5 {
SELECT * FROM x1 WHERE a='x' AND b='y' AND c='z';
} {x y z one}
do_execsql_test 5.6 {
SELECT * FROM x1
WHERE a='x' COLLATE nocase AND b='y' COLLATE nocase AND c='z'COLLATE nocase;
} {x y z one X Y Z two}
do_execsql_test 5.7 {
DELETE FROM t1;
INSERT INTO t1(rowid, a, b, c, d) VALUES(0, 'x', 'y', 'z', 'zero');
INSERT INTO t1(rowid, a, b, c, d) VALUES(1, 'x', 'y', 'Z', 'one');
INSERT INTO t1(rowid, a, b, c, d) VALUES(2, 'x', 'Y', 'z', 'two');
INSERT INTO t1(rowid, a, b, c, d) VALUES(3, 'x', 'Y', 'Z', 'three');
INSERT INTO t1(rowid, a, b, c, d) VALUES(4, 'X', 'y', 'z', 'four');
INSERT INTO t1(rowid, a, b, c, d) VALUES(5, 'X', 'y', 'Z', 'five');
INSERT INTO t1(rowid, a, b, c, d) VALUES(6, 'X', 'Y', 'z', 'six');
INSERT INTO t1(rowid, a, b, c, d) VALUES(7, 'X', 'Y', 'z', 'seven');
}
do_execsql_test 5.8 {
SELECT d FROM x1
WHERE a='x' AND ((b='y' AND c='z') OR (b='Y' AND c='z' COLLATE nocase))
} {
zero two three
}
do_execsql_test 5.9 {
SELECT d FROM x1
WHERE a='x' COLLATE nocase
AND ((b='y' AND c='z') OR (b='Y' AND c='z' COLLATE nocase))
} {
zero four two
three six seven
}
finish_test