401 lines
11 KiB
Plaintext
401 lines
11 KiB
Plaintext
# 2014 November 1
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix scanstatus
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ifcapable !scanstatus {
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finish_test
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return
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}
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, b);
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CREATE TABLE t2(x, y);
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(3, 4);
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INSERT INTO t2 VALUES('a', 'b');
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INSERT INTO t2 VALUES('c', 'd');
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INSERT INTO t2 VALUES('e', 'f');
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}
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proc do_scanstatus_test {tn res} {
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set stmt [db version -last-stmt-ptr]
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set idx 0
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set ret [list]
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while {1} {
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set r [sqlite3_stmt_scanstatus $stmt $idx]
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if {[llength $r]==0} break
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lappend ret {*}$r
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incr idx
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}
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uplevel [list do_test $tn [list set {} $ret] [list {*}$res]]
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}
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do_execsql_test 1.1 { SELECT count(*) FROM t1, t2; } 6
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do_scanstatus_test 1.2 {
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nLoop 1 nVisit 2 nEst 1048576.0 zName t1 zExplain {SCAN TABLE t1}
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nLoop 2 nVisit 6 nEst 1048576.0 zName t2 zExplain {SCAN TABLE t2}
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}
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do_execsql_test 1.3 {
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ANALYZE;
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SELECT count(*) FROM t1, t2;
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} 6
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do_scanstatus_test 1.4 {
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nLoop 1 nVisit 2 nEst 2.0 zName t1 zExplain {SCAN TABLE t1}
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nLoop 2 nVisit 6 nEst 3.0 zName t2 zExplain {SCAN TABLE t2}
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}
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do_execsql_test 1.5 { ANALYZE }
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do_execsql_test 1.6 {
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SELECT count(*) FROM t1, t2 WHERE t2.rowid>1;
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} 4
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do_scanstatus_test 1.7 {
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nLoop 1 nVisit 2 nEst 2.0 zName t2 zExplain
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{SEARCH TABLE t2 USING INTEGER PRIMARY KEY (rowid>?)}
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nLoop 2 nVisit 4 nEst 2.0 zName t1 zExplain {SCAN TABLE t1}
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}
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do_execsql_test 1.8 {
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SELECT count(*) FROM t1, t2 WHERE t2.rowid>1;
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} 4
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do_scanstatus_test 1.9 {
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nLoop 2 nVisit 4 nEst 2.0 zName t2 zExplain
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{SEARCH TABLE t2 USING INTEGER PRIMARY KEY (rowid>?)}
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nLoop 4 nVisit 8 nEst 2.0 zName t1 zExplain {SCAN TABLE t1}
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}
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do_test 1.9 {
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sqlite3_stmt_scanstatus_reset [db version -last-stmt-ptr]
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} {}
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do_scanstatus_test 1.10 {
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nLoop 0 nVisit 0 nEst 2.0 zName t2 zExplain
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{SEARCH TABLE t2 USING INTEGER PRIMARY KEY (rowid>?)}
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nLoop 0 nVisit 0 nEst 2.0 zName t1 zExplain {SCAN TABLE t1}
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}
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#-------------------------------------------------------------------------
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# Try a few different types of scans.
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#
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reset_db
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do_execsql_test 2.1 {
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CREATE TABLE x1(i INTEGER PRIMARY KEY, j);
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INSERT INTO x1 VALUES(1, 'one');
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INSERT INTO x1 VALUES(2, 'two');
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INSERT INTO x1 VALUES(3, 'three');
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INSERT INTO x1 VALUES(4, 'four');
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CREATE INDEX x1j ON x1(j);
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SELECT * FROM x1 WHERE i=2;
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} {2 two}
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do_scanstatus_test 2.2 {
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nLoop 1 nVisit 1 nEst 1.0 zName x1
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zExplain {SEARCH TABLE x1 USING INTEGER PRIMARY KEY (rowid=?)}
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}
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do_execsql_test 2.3.1 {
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SELECT * FROM x1 WHERE j='two'
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} {2 two}
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do_scanstatus_test 2.3.2 {
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nLoop 1 nVisit 1 nEst 10.0 zName x1j
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zExplain {SEARCH TABLE x1 USING COVERING INDEX x1j (j=?)}
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}
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do_execsql_test 2.4.1 {
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SELECT * FROM x1 WHERE j<'two'
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} {4 four 1 one 3 three}
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do_scanstatus_test 2.4.2 {
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nLoop 1 nVisit 3 nEst 262144.0 zName x1j
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zExplain {SEARCH TABLE x1 USING COVERING INDEX x1j (j<?)}
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}
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do_execsql_test 2.5.1 {
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SELECT * FROM x1 WHERE j>='two'
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} {2 two}
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do_scanstatus_test 2.5.2 {
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nLoop 1 nVisit 1 nEst 262144.0 zName x1j
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zExplain {SEARCH TABLE x1 USING COVERING INDEX x1j (j>?)}
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}
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do_execsql_test 2.6.1 {
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SELECT * FROM x1 WHERE j BETWEEN 'three' AND 'two'
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} {3 three 2 two}
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do_scanstatus_test 2.6.2 {
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nLoop 1 nVisit 2 nEst 16384.0 zName x1j
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zExplain {SEARCH TABLE x1 USING COVERING INDEX x1j (j>? AND j<?)}
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}
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do_execsql_test 2.7.1 {
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CREATE TABLE x2(i INTEGER, j, k);
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INSERT INTO x2 SELECT i, j, i || ' ' || j FROM x1;
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CREATE INDEX x2j ON x2(j);
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CREATE INDEX x2ij ON x2(i, j);
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SELECT * FROM x2 WHERE j BETWEEN 'three' AND 'two'
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} {3 three {3 three} 2 two {2 two}}
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do_scanstatus_test 2.7.2 {
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nLoop 1 nVisit 2 nEst 16384.0 zName x2j
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zExplain {SEARCH TABLE x2 USING INDEX x2j (j>? AND j<?)}
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}
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do_execsql_test 2.8.1 {
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SELECT * FROM x2 WHERE i=1 AND j='two'
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}
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do_scanstatus_test 2.8.2 {
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nLoop 1 nVisit 0 nEst 8.0 zName x2ij
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zExplain {SEARCH TABLE x2 USING INDEX x2ij (i=? AND j=?)}
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}
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do_execsql_test 2.9.1 {
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SELECT * FROM x2 WHERE i=5 AND j='two'
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}
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do_scanstatus_test 2.9.2 {
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nLoop 1 nVisit 0 nEst 8.0 zName x2ij
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zExplain {SEARCH TABLE x2 USING INDEX x2ij (i=? AND j=?)}
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}
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do_execsql_test 2.10.1 {
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SELECT * FROM x2 WHERE i=3 AND j='three'
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} {3 three {3 three}}
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do_scanstatus_test 2.10.2 {
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nLoop 1 nVisit 1 nEst 8.0 zName x2ij
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zExplain {SEARCH TABLE x2 USING INDEX x2ij (i=? AND j=?)}
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}
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#-------------------------------------------------------------------------
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# Try with queries that use the OR optimization.
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#
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do_execsql_test 3.1 {
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CREATE TABLE a1(a, b, c, d);
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CREATE INDEX a1a ON a1(a);
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CREATE INDEX a1bc ON a1(b, c);
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WITH d(x) AS (SELECT 1 UNION ALL SELECT x+1 AS n FROM d WHERE n<=100)
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INSERT INTO a1 SELECT x, x, x, x FROM d;
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}
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do_execsql_test 3.2.1 {
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SELECT d FROM a1 WHERE (a=4 OR b=13)
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} {4 13}
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do_scanstatus_test 3.2.2 {
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nLoop 1 nVisit 1 nEst 10.0 zName a1a
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zExplain {SEARCH TABLE a1 USING INDEX a1a (a=?)}
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nLoop 1 nVisit 1 nEst 10.0 zName a1bc
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zExplain {SEARCH TABLE a1 USING INDEX a1bc (b=?)}
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}
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do_execsql_test 3.2.1 {
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SELECT count(*) FROM a1 WHERE (a BETWEEN 4 AND 12) OR (b BETWEEN 40 AND 60)
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} {30}
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do_scanstatus_test 3.2.2 {
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nLoop 1 nVisit 9 nEst 16384.0 zName a1a
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zExplain {SEARCH TABLE a1 USING INDEX a1a (a>? AND a<?)}
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nLoop 1 nVisit 21 nEst 16384.0 zName a1bc
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zExplain {SEARCH TABLE a1 USING INDEX a1bc (b>? AND b<?)}
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}
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do_execsql_test 3.3.1 {
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SELECT count(*) FROM a1 AS x, a1 AS y
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WHERE (x.a BETWEEN 4 AND 12) AND (y.b BETWEEN 1 AND 10)
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} {90}
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do_scanstatus_test 3.2.2 {
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nLoop 1 nVisit 10 nEst 16384.0 zName a1bc
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zExplain {SEARCH TABLE a1 AS y USING COVERING INDEX a1bc (b>? AND b<?)}
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nLoop 10 nVisit 90 nEst 16384.0 zName a1a
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zExplain {SEARCH TABLE a1 AS x USING COVERING INDEX a1a (a>? AND a<?)}
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}
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do_execsql_test 3.4.1 {
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SELECT count(*) FROM a1 WHERE a IN (1, 5, 10, 15);
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} {4}
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do_scanstatus_test 3.4.2 {
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nLoop 1 nVisit 4 nEst 40.0 zName a1a
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zExplain {SEARCH TABLE a1 USING COVERING INDEX a1a (a=?)}
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}
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do_execsql_test 3.4.1 {
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SELECT count(*) FROM a1 WHERE rowid IN (1, 5, 10, 15);
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} {4}
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do_scanstatus_test 3.4.2 {
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nLoop 1 nVisit 4 nEst 4.0 zName a1
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zExplain {SEARCH TABLE a1 USING INTEGER PRIMARY KEY (rowid=?)}
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}
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#-------------------------------------------------------------------------
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# Test that scanstatus() data is not available for searches performed
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# by triggers.
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#
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# It is available for searches performed as part of FK processing, but
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# not FK action processing.
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#
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do_execsql_test 4.0 {
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CREATE TABLE t1(a, b, c);
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CREATE TABLE t2(x PRIMARY KEY, y, z);
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CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
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SELECT * FROM t2 WHERE x BETWEEN 20 AND 40;
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END;
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WITH d(x) AS (SELECT 1 UNION ALL SELECT x+1 AS n FROM d WHERE n<=100)
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INSERT INTO t2 SELECT x, x*2, x*3 FROM d;
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}
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do_execsql_test 4.1.1 { INSERT INTO t1 VALUES(1, 2, 3); }
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do_scanstatus_test 4.1.2 {}
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do_execsql_test 4.2 {
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CREATE TABLE p1(x PRIMARY KEY);
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INSERT INTO p1 VALUES(1), (2), (3), (4);
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CREATE TABLE c1(y REFERENCES p1);
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INSERT INTO c1 VALUES(1), (2), (3);
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PRAGMA foreign_keys=on;
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}
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do_execsql_test 4.2.1 { DELETE FROM p1 WHERE x=4 }
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do_scanstatus_test 4.2.2 {
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nLoop 1 nVisit 1 nEst 1.0 zName sqlite_autoindex_p1_1
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zExplain {SEARCH TABLE p1 USING INDEX sqlite_autoindex_p1_1 (x=?)}
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nLoop 1 nVisit 3 nEst 262144.0 zName c1 zExplain {SCAN TABLE c1}
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}
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#-------------------------------------------------------------------------
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# Further tests of different scan types.
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#
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reset_db
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proc tochar {i} {
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set alphabet {a b c d e f g h i j k l m n o p q r s t u v w x y z}
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return [lindex $alphabet [expr $i % [llength $alphabet]]]
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}
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db func tochar tochar
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do_execsql_test 5.0 {
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CREATE TABLE t1(a PRIMARY KEY, b, c);
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INSERT INTO t1 VALUES(0, 1, 'a');
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INSERT INTO t1 VALUES(1, 0, 'b');
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INSERT INTO t1 VALUES(2, 1, 'c');
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INSERT INTO t1 VALUES(3, 0, 'd');
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INSERT INTO t1 VALUES(4, 1, 'e');
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INSERT INTO t1 VALUES(5, 0, 'a');
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INSERT INTO t1 VALUES(6, 1, 'b');
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INSERT INTO t1 VALUES(7, 0, 'c');
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INSERT INTO t1 VALUES(8, 1, 'd');
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INSERT INTO t1 VALUES(9, 0, 'e');
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CREATE INDEX t1bc ON t1(b, c);
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CREATE TABLE t2(x, y);
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CREATE INDEX t2xy ON t2(x, y);
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WITH data(i, x, y) AS (
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SELECT 0, 0, tochar(0)
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UNION ALL
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SELECT i+1, (i+1)%2, tochar(i+1) FROM data WHERE i<500
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) INSERT INTO t2 SELECT x, y FROM data;
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CREATE TABLE t3(x, y);
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INSERT INTO t3 SELECT * FROM t2;
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ANALYZE;
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}
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do_execsql_test 5.1.1 {
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SELECT count(*) FROM t1 WHERE a IN (SELECT b FROM t1 AS ii)
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} {2}
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do_scanstatus_test 5.1.2 {
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nLoop 1 nVisit 10 nEst 10.0 zName t1bc
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zExplain {SCAN TABLE t1 AS ii USING COVERING INDEX t1bc}
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nLoop 1 nVisit 2 nEst 8.0 zName sqlite_autoindex_t1_1
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zExplain {SEARCH TABLE t1 USING COVERING INDEX sqlite_autoindex_t1_1 (a=?)}
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}
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do_execsql_test 5.2.1 {
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SELECT count(*) FROM t1 WHERE a IN (0, 1)
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} {2}
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do_scanstatus_test 5.2.2 {
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nLoop 1 nVisit 2 nEst 2.0 zName sqlite_autoindex_t1_1
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zExplain {SEARCH TABLE t1 USING COVERING INDEX sqlite_autoindex_t1_1 (a=?)}
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}
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do_eqp_test 5.3.1 {
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SELECT count(*) FROM t2 WHERE y = 'j';
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} {SEARCH TABLE t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)}
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do_execsql_test 5.3.2 {
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SELECT count(*) FROM t2 WHERE y = 'j';
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} {19}
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do_scanstatus_test 5.3.3 {
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nLoop 1 nVisit 19 nEst 56.0 zName t2xy zExplain
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{SEARCH TABLE t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)}
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}
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do_eqp_test 5.4.1 {
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SELECT count(*) FROM t1, t2 WHERE y = c;
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} {
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QUERY PLAN
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|--SCAN TABLE t1 USING COVERING INDEX t1bc
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`--SEARCH TABLE t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)
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}
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do_execsql_test 5.4.2 {
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SELECT count(*) FROM t1, t2 WHERE y = c;
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} {200}
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do_scanstatus_test 5.4.3 {
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nLoop 1 nVisit 10 nEst 10.0 zName t1bc
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zExplain {SCAN TABLE t1 USING COVERING INDEX t1bc}
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nLoop 10 nVisit 200 nEst 56.0 zName t2xy
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zExplain {SEARCH TABLE t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)}
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}
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do_eqp_test 5.5.1 {
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SELECT count(*) FROM t1, t3 WHERE y = c;
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} {
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QUERY PLAN
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|--SCAN TABLE t3
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`--SEARCH TABLE t1 USING AUTOMATIC COVERING INDEX (c=?)
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}
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do_execsql_test 5.5.2 {
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SELECT count(*) FROM t1, t3 WHERE y = c;
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} {200}
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do_scanstatus_test 5.5.3 {
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nLoop 1 nVisit 501 nEst 480.0 zName t3 zExplain {SCAN TABLE t3}
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nLoop 501 nVisit 200 nEst 20.0 zName auto-index zExplain
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{SEARCH TABLE t1 USING AUTOMATIC COVERING INDEX (c=?)}
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}
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#-------------------------------------------------------------------------
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# Virtual table scans
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#
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ifcapable fts3 {
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do_execsql_test 6.0 {
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CREATE VIRTUAL TABLE ft1 USING fts4;
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INSERT INTO ft1 VALUES('a d c f g h e i f c');
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INSERT INTO ft1 VALUES('g c h b g b f f f g');
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INSERT INTO ft1 VALUES('h h c c h f a e d d');
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INSERT INTO ft1 VALUES('e j i j i e b c f g');
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INSERT INTO ft1 VALUES('g f b g j c h a d f');
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INSERT INTO ft1 VALUES('j i a e g f a i a c');
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INSERT INTO ft1 VALUES('f d g g j j c a h g');
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INSERT INTO ft1 VALUES('b d h a d j j j b i');
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INSERT INTO ft1 VALUES('j e a b j e c b c i');
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INSERT INTO ft1 VALUES('a d e f b j j c g d');
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}
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do_execsql_test 6.1.1 {
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SELECT count(*) FROM ft1 WHERE ft1 MATCH 'd'
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} {6}
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do_scanstatus_test 6.1.2 {
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nLoop 1 nVisit 6 nEst 24.0 zName ft1 zExplain
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{SCAN TABLE ft1 VIRTUAL TABLE INDEX 3:}
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}
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}
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finish_test
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