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