mirror of
https://github.com/tursodatabase/libsql.git
synced 2024-12-15 03:59:46 +00:00
290 lines
6.7 KiB
Plaintext
290 lines
6.7 KiB
Plaintext
# 2014-04-26
|
|
#
|
|
# 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 cost
|
|
|
|
|
|
do_execsql_test 1.1 {
|
|
CREATE TABLE t3(id INTEGER PRIMARY KEY, b NOT NULL);
|
|
CREATE TABLE t4(c, d, e);
|
|
CREATE UNIQUE INDEX i3 ON t3(b);
|
|
CREATE UNIQUE INDEX i4 ON t4(c, d);
|
|
}
|
|
do_eqp_test 1.2 {
|
|
SELECT e FROM t3, t4 WHERE b=c ORDER BY b, d;
|
|
} {
|
|
QUERY PLAN
|
|
|--SCAN t3 USING COVERING INDEX i3
|
|
`--SEARCH t4 USING INDEX i4 (c=?)
|
|
}
|
|
|
|
|
|
do_execsql_test 2.1 {
|
|
CREATE TABLE t1(a, b);
|
|
CREATE INDEX i1 ON t1(a);
|
|
}
|
|
|
|
# It is better to use an index for ORDER BY than sort externally, even
|
|
# if the index is a non-covering index.
|
|
do_eqp_test 2.2 {
|
|
SELECT * FROM t1 ORDER BY a;
|
|
} {SCAN t1 USING INDEX i1}
|
|
|
|
do_execsql_test 3.1 {
|
|
CREATE TABLE t5(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
|
|
CREATE INDEX t5b ON t5(b);
|
|
CREATE INDEX t5c ON t5(c);
|
|
CREATE INDEX t5d ON t5(d);
|
|
CREATE INDEX t5e ON t5(e);
|
|
CREATE INDEX t5f ON t5(f);
|
|
CREATE INDEX t5g ON t5(g);
|
|
}
|
|
|
|
do_eqp_test 3.2 {
|
|
SELECT a FROM t5
|
|
WHERE b IS NULL OR c IS NULL OR d IS NULL
|
|
ORDER BY a;
|
|
} {
|
|
QUERY PLAN
|
|
|--MULTI-INDEX OR
|
|
| |--INDEX 1
|
|
| | `--SEARCH t5 USING INDEX t5b (b=?)
|
|
| |--INDEX 2
|
|
| | `--SEARCH t5 USING INDEX t5c (c=?)
|
|
| `--INDEX 3
|
|
| `--SEARCH t5 USING INDEX t5d (d=?)
|
|
`--USE TEMP B-TREE FOR ORDER BY
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# If there is no likelihood() or stat3 data, SQLite assumes that a closed
|
|
# range scan (e.g. one constrained by "col BETWEEN ? AND ?" constraint)
|
|
# visits 1/64 of the rows in a table.
|
|
#
|
|
# Note: 1/63 =~ 0.016
|
|
# Note: 1/65 =~ 0.015
|
|
#
|
|
reset_db
|
|
do_execsql_test 4.1 {
|
|
CREATE TABLE t1(a, b);
|
|
CREATE INDEX i1 ON t1(a);
|
|
CREATE INDEX i2 ON t1(b);
|
|
}
|
|
do_eqp_test 4.2 {
|
|
SELECT * FROM t1 WHERE likelihood(a=?, 0.014) AND b BETWEEN ? AND ?;
|
|
} {SEARCH t1 USING INDEX i1 (a=?)}
|
|
|
|
do_eqp_test 4.3 {
|
|
SELECT * FROM t1 WHERE likelihood(a=?, 0.016) AND b BETWEEN ? AND ?;
|
|
} {SEARCH t1 USING INDEX i2 (b>? AND b<?)}
|
|
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
reset_db
|
|
do_execsql_test 5.1 {
|
|
CREATE TABLE t2(x, y);
|
|
CREATE INDEX t2i1 ON t2(x);
|
|
}
|
|
|
|
do_eqp_test 5.2 {
|
|
SELECT * FROM t2 ORDER BY x, y;
|
|
} {
|
|
QUERY PLAN
|
|
|--SCAN t2 USING INDEX t2i1
|
|
`--USE TEMP B-TREE FOR RIGHT PART OF ORDER BY
|
|
}
|
|
|
|
do_eqp_test 5.3 {
|
|
SELECT * FROM t2 WHERE x BETWEEN ? AND ? ORDER BY rowid;
|
|
} {
|
|
QUERY PLAN
|
|
|--SEARCH t2 USING INDEX t2i1 (x>? AND x<?)
|
|
`--USE TEMP B-TREE FOR ORDER BY
|
|
}
|
|
|
|
# where7.test, where8.test:
|
|
#
|
|
do_execsql_test 6.1 {
|
|
CREATE TABLE t3(a INTEGER PRIMARY KEY, b, c);
|
|
CREATE INDEX t3i1 ON t3(b);
|
|
CREATE INDEX t3i2 ON t3(c);
|
|
}
|
|
|
|
do_eqp_test 6.2 {
|
|
SELECT a FROM t3 WHERE (b BETWEEN 2 AND 4) OR c=100 ORDER BY a
|
|
} {
|
|
QUERY PLAN
|
|
|--MULTI-INDEX OR
|
|
| |--INDEX 1
|
|
| | `--SEARCH t3 USING INDEX t3i1 (b>? AND b<?)
|
|
| `--INDEX 2
|
|
| `--SEARCH t3 USING INDEX t3i2 (c=?)
|
|
`--USE TEMP B-TREE FOR ORDER BY
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
reset_db
|
|
do_execsql_test 7.1 {
|
|
CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
|
|
CREATE INDEX t1b ON t1(b);
|
|
CREATE INDEX t1c ON t1(c);
|
|
CREATE INDEX t1d ON t1(d);
|
|
CREATE INDEX t1e ON t1(e);
|
|
CREATE INDEX t1f ON t1(f);
|
|
CREATE INDEX t1g ON t1(g);
|
|
}
|
|
|
|
do_eqp_test 7.2 {
|
|
SELECT a FROM t1
|
|
WHERE (b>=950 AND b<=1010) OR (b IS NULL AND c NOT NULL)
|
|
ORDER BY a
|
|
} {
|
|
QUERY PLAN
|
|
|--MULTI-INDEX OR
|
|
| |--INDEX 1
|
|
| | `--SEARCH t1 USING INDEX t1b (b>? AND b<?)
|
|
| `--INDEX 2
|
|
| `--SEARCH t1 USING INDEX t1b (b=?)
|
|
`--USE TEMP B-TREE FOR ORDER BY
|
|
}
|
|
|
|
do_eqp_test 7.3 {
|
|
SELECT rowid FROM t1
|
|
WHERE (+b IS NULL AND c NOT NULL AND d NOT NULL)
|
|
OR (b NOT NULL AND c IS NULL AND d NOT NULL)
|
|
OR (b NOT NULL AND c NOT NULL AND d IS NULL)
|
|
} {SCAN t1}
|
|
|
|
do_eqp_test 7.4 {
|
|
SELECT rowid FROM t1 WHERE (+b IS NULL AND c NOT NULL) OR c IS NULL
|
|
} {SCAN t1}
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
reset_db
|
|
do_execsql_test 8.1 {
|
|
CREATE TABLE composer(
|
|
cid INTEGER PRIMARY KEY,
|
|
cname TEXT
|
|
);
|
|
CREATE TABLE album(
|
|
aid INTEGER PRIMARY KEY,
|
|
aname TEXT
|
|
);
|
|
CREATE TABLE track(
|
|
tid INTEGER PRIMARY KEY,
|
|
cid INTEGER REFERENCES composer,
|
|
aid INTEGER REFERENCES album,
|
|
title TEXT
|
|
);
|
|
CREATE INDEX track_i1 ON track(cid);
|
|
CREATE INDEX track_i2 ON track(aid);
|
|
}
|
|
|
|
do_eqp_test 8.2 {
|
|
SELECT DISTINCT aname
|
|
FROM album, composer, track
|
|
WHERE cname LIKE '%bach%'
|
|
AND unlikely(composer.cid=track.cid)
|
|
AND unlikely(album.aid=track.aid);
|
|
} {
|
|
QUERY PLAN
|
|
|--SCAN track
|
|
|--SEARCH album USING INTEGER PRIMARY KEY (rowid=?)
|
|
|--SEARCH composer USING INTEGER PRIMARY KEY (rowid=?)
|
|
`--USE TEMP B-TREE FOR DISTINCT
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
do_execsql_test 9.1 {
|
|
CREATE TABLE t1(
|
|
a,b,c,d,e, f,g,h,i,j,
|
|
k,l,m,n,o, p,q,r,s,t
|
|
);
|
|
CREATE INDEX i1 ON t1(k,l,m,n,o,p,q,r,s,t);
|
|
}
|
|
do_test 9.2 {
|
|
for {set i 0} {$i < 100} {incr i} {
|
|
execsql { INSERT INTO t1 DEFAULT VALUES }
|
|
}
|
|
execsql {
|
|
ANALYZE;
|
|
CREATE INDEX i2 ON t1(a,b,c,d,e,f,g,h,i,j);
|
|
}
|
|
} {}
|
|
|
|
set L [list a=? b=? c=? d=? e=? f=? g=? h=? i=? j=?]
|
|
foreach {tn nTerm nRow} {
|
|
1 1 10
|
|
2 2 10
|
|
3 3 8
|
|
4 4 7
|
|
5 5 7
|
|
6 6 5
|
|
7 7 5
|
|
8 8 5
|
|
9 9 5
|
|
10 10 5
|
|
} {
|
|
set w [join [lrange $L 0 [expr $nTerm-1]] " AND "]
|
|
set p1 [expr ($nRow-1) / 100.0]
|
|
set p2 [expr ($nRow+1) / 100.0]
|
|
|
|
set sql1 "SELECT * FROM t1 WHERE likelihood(k=?, $p1) AND $w"
|
|
set sql2 "SELECT * FROM t1 WHERE likelihood(k=?, $p2) AND $w"
|
|
|
|
do_eqp_test 9.3.$tn.1 $sql1 {/INDEX i1/}
|
|
do_eqp_test 9.3.$tn.2 $sql2 {/INDEX i2/}
|
|
}
|
|
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
|
|
ifcapable stat4 {
|
|
do_execsql_test 10.1 {
|
|
CREATE TABLE t6(a, b, c);
|
|
CREATE INDEX t6i1 ON t6(a, b);
|
|
CREATE INDEX t6i2 ON t6(c);
|
|
}
|
|
|
|
do_test 10.2 {
|
|
for {set i 0} {$i < 16} {incr i} {
|
|
execsql { INSERT INTO t6 VALUES($i%4, 'xyz', $i%8) }
|
|
}
|
|
execsql ANALYZE
|
|
} {}
|
|
|
|
do_eqp_test 10.3 {
|
|
SELECT rowid FROM t6 WHERE a=0 AND c=0
|
|
} {SEARCH t6 USING INDEX t6i2 (c=?)}
|
|
|
|
do_eqp_test 10.4 {
|
|
SELECT rowid FROM t6 WHERE a=0 AND b='xyz' AND c=0
|
|
} {SEARCH t6 USING INDEX t6i2 (c=?)}
|
|
|
|
do_eqp_test 10.5 {
|
|
SELECT rowid FROM t6 WHERE likelihood(a=0, 0.1) AND c=0
|
|
} {SEARCH t6 USING INDEX t6i1 (a=?)}
|
|
|
|
do_eqp_test 10.6 {
|
|
SELECT rowid FROM t6 WHERE likelihood(a=0, 0.1) AND b='xyz' AND c=0
|
|
} {SEARCH t6 USING INDEX t6i1 (a=? AND b=?)}
|
|
}
|
|
|
|
finish_test
|