Adding upstream version 1.37.0.
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
parent
42613ad5c6
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1329 changed files with 4727104 additions and 0 deletions
564
testdata/tcl/autoindex1.test
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testdata/tcl/autoindex1.test
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# 2010 April 07
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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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# This file implements regression tests for SQLite library. The
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# focus of this script is testing automatic index creation logic.
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#
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# EVIDENCE-OF: R-34271-33106 PRAGMA automatic_index; PRAGMA
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# automatic_index = boolean; Query, set, or clear the automatic indexing
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# capability.
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# If the library is not compiled with automatic index support then
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# skip all tests in this file.
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#
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ifcapable {!autoindex} {
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finish_test
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return
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}
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# Setup for logging
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db close
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sqlite3_shutdown
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test_sqlite3_log [list lappend ::log]
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set ::log [list]
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sqlite3 db test.db
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# With automatic index turned off, we do a full scan of the T2 table
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do_test autoindex1-100 {
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db eval {
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CREATE TABLE t1(a,b);
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INSERT INTO t1 VALUES(1,11);
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INSERT INTO t1 VALUES(2,22);
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INSERT INTO t1 SELECT a+2, b+22 FROM t1;
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INSERT INTO t1 SELECT a+4, b+44 FROM t1;
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CREATE TABLE t2(c,d);
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INSERT INTO t2 SELECT a, 900+b FROM t1;
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}
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db eval {
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PRAGMA automatic_index=OFF;
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SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b;
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}
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} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
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do_test autoindex1-101 {
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db status step
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} {63}
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do_test autoindex1-102 {
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db status autoindex
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} {0}
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# With autoindex turned on, we build an index once and then use that index
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# to find T2 values.
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do_test autoindex1-110 {
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db eval {
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PRAGMA automatic_index=ON;
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SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b;
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}
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} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
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do_test autoindex1-111 {
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db status step
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} {7}
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do_test autoindex1-112 {
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db status autoindex
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} {7}
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do_test autoindex1-113 {
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set ::log
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} {SQLITE_WARNING_AUTOINDEX {automatic index on t2(c)}}
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db close
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sqlite3_shutdown
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test_sqlite3_log
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sqlite3_initialize
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sqlite3 db test.db
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# The same test as above, but this time the T2 query is a subquery rather
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# than a join.
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do_test autoindex1-200 {
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db eval {
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PRAGMA automatic_index=OFF;
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SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1;
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}
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} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
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do_test autoindex1-201 {
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db status step
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} {35}
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do_test autoindex1-202 {
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db status autoindex
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} {0}
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do_test autoindex1-210 {
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db eval {
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PRAGMA automatic_index=ON;
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ANALYZE;
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UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t1';
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-- Table t2 actually contains 8 rows.
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UPDATE sqlite_stat1 SET stat='16' WHERE tbl='t2';
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ANALYZE sqlite_master;
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SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1;
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}
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} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
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do_test autoindex1-211 {
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db status step
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} {7}
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do_test autoindex1-212 {
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db status autoindex
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} {7}
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# Modify the second table of the join while the join is in progress
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#
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do_execsql_test autoindex1-299 {
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UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t2';
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ANALYZE sqlite_master;
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EXPLAIN QUERY PLAN
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SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a);
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} {/AUTOMATIC COVERING INDEX/}
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do_test autoindex1-300 {
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set r {}
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db eval {SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a)} {
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lappend r $b $d
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db eval {UPDATE t2 SET d=d+1}
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}
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set r
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} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
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do_test autoindex1-310 {
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db eval {SELECT d FROM t2 ORDER BY d}
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} {919 930 941 952 963 974 985 996}
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# The next test does a 10-way join on unindexed tables. Without
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# automatic indices, the join will take a long time to complete.
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# With automatic indices, it should only take about a second.
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#
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do_test autoindex1-400 {
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db eval {
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CREATE TABLE t4(a, b);
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INSERT INTO t4 VALUES(1,2);
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INSERT INTO t4 VALUES(2,3);
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}
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for {set n 2} {$n<4096} {set n [expr {$n+$n}]} {
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db eval {INSERT INTO t4 SELECT a+$n, b+$n FROM t4}
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}
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db eval {
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SELECT count(*) FROM t4;
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}
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} {4096}
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do_test autoindex1-401 {
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db eval {
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SELECT count(*)
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FROM t4 AS x1
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JOIN t4 AS x2 ON x2.a=x1.b
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JOIN t4 AS x3 ON x3.a=x2.b
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JOIN t4 AS x4 ON x4.a=x3.b
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JOIN t4 AS x5 ON x5.a=x4.b
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JOIN t4 AS x6 ON x6.a=x5.b
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JOIN t4 AS x7 ON x7.a=x6.b
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JOIN t4 AS x8 ON x8.a=x7.b
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JOIN t4 AS x9 ON x9.a=x8.b
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JOIN t4 AS x10 ON x10.a=x9.b;
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}
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} {4087}
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# Ticket [8011086c85c6c404014c947fcf3eb9f42b184a0d] from 2010-07-08
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# Make sure automatic indices are not created for the RHS of an IN expression
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# that is not a correlated subquery.
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#
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do_execsql_test autoindex1-500 {
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CREATE TABLE t501(a INTEGER PRIMARY KEY, b);
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CREATE TABLE t502(x INTEGER PRIMARY KEY, y);
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INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t501',null,'1000000');
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INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t502',null,'1000');
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ANALYZE sqlite_master;
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}
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do_eqp_test autoindex1-500.1 {
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SELECT b FROM t501
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WHERE t501.a IN (SELECT x FROM t502 WHERE y=?);
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} {
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QUERY PLAN
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|--SEARCH t501 USING INTEGER PRIMARY KEY (rowid=?)
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`--LIST SUBQUERY xxxxxx
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`--SCAN t502
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}
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do_eqp_test autoindex1-501 {
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SELECT b FROM t501
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WHERE t501.a IN (SELECT x FROM t502 WHERE y=t501.b);
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} {
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QUERY PLAN
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|--SCAN t501
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`--CORRELATED LIST SUBQUERY xxxxxx
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`--SEARCH t502 USING AUTOMATIC COVERING INDEX (y=?)
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}
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do_eqp_test autoindex1-502 {
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SELECT b FROM t501
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WHERE t501.a=123
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AND t501.a IN (SELECT x FROM t502 WHERE y=t501.b);
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} {
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QUERY PLAN
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|--SEARCH t501 USING INTEGER PRIMARY KEY (rowid=?)
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`--CORRELATED LIST SUBQUERY xxxxxx
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`--SCAN t502
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}
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# The following code checks a performance regression reported on the
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# mailing list on 2010-10-19. The problem is that the nRowEst field
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# of ephermeral tables was not being initialized correctly and so no
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# automatic index was being created for the emphemeral table when it was
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# used as part of a join.
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#
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do_execsql_test autoindex1-600 {
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CREATE TABLE flock_owner(
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owner_rec_id INTEGER CONSTRAINT flock_owner_key PRIMARY KEY,
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flock_no VARCHAR(6) NOT NULL REFERENCES flock (flock_no),
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owner_person_id INTEGER NOT NULL REFERENCES person (person_id),
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owner_change_date TEXT, last_changed TEXT NOT NULL,
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CONSTRAINT fo_owner_date UNIQUE (flock_no, owner_change_date)
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);
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CREATE TABLE sheep (
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Sheep_No char(7) NOT NULL,
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Date_of_Birth char(8),
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Sort_DoB text,
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Flock_Book_Vol char(2),
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Breeder_No char(6),
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Breeder_Person integer,
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Originating_Flock char(6),
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Registering_Flock char(6),
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Tag_Prefix char(9),
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Tag_No char(15),
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Sort_Tag_No integer,
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Breeders_Temp_Tag char(15),
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Sex char(1),
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Sheep_Name char(32),
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Sire_No char(7),
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Dam_No char(7),
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Register_Code char(1),
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Colour char(48),
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Colour_Code char(2),
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Pattern_Code char(8),
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Horns char(1),
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Litter_Size char(1),
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Coeff_of_Inbreeding real,
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Date_of_Registration text,
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Date_Last_Changed text,
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UNIQUE(Sheep_No));
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CREATE INDEX fo_flock_no_index
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ON flock_owner (flock_no);
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CREATE INDEX fo_owner_change_date_index
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ON flock_owner (owner_change_date);
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CREATE INDEX fo_owner_person_id_index
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ON flock_owner (owner_person_id);
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CREATE INDEX sheep_org_flock_index
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ON sheep (originating_flock);
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CREATE INDEX sheep_reg_flock_index
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ON sheep (registering_flock);
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}
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do_eqp_test autoindex1-600a {
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SELECT x.sheep_no, x.registering_flock, x.date_of_registration
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FROM sheep x LEFT JOIN
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(SELECT s.sheep_no, prev.flock_no, prev.owner_person_id,
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s.date_of_registration, prev.owner_change_date
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FROM sheep s JOIN flock_owner prev ON s.registering_flock =
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prev.flock_no
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AND (prev.owner_change_date <= s.date_of_registration || ' 00:00:00')
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WHERE NOT EXISTS
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(SELECT 'x' FROM flock_owner later
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WHERE prev.flock_no = later.flock_no
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AND later.owner_change_date > prev.owner_change_date
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AND later.owner_change_date <= s.date_of_registration||' 00:00:00')
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) y ON x.sheep_no = y.sheep_no
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WHERE y.sheep_no IS NULL
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ORDER BY x.registering_flock;
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} {
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QUERY PLAN
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|--MATERIALIZE y
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| |--SCAN s
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| |--SEARCH prev USING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date<?)
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| `--CORRELATED SCALAR SUBQUERY xxxxxx
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| `--SEARCH later USING COVERING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date>? AND owner_change_date<?)
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|--SCAN x USING INDEX sheep_reg_flock_index
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`--SEARCH y USING AUTOMATIC COVERING INDEX (sheep_no=?) LEFT-JOIN
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}
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do_execsql_test autoindex1-700 {
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CREATE TABLE t5(a, b, c);
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}
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do_eqp_test autoindex1-700a {
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SELECT a FROM t5 WHERE b=10 ORDER BY c;
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} {
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QUERY PLAN
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|--SCAN t5
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`--USE TEMP B-TREE FOR ORDER BY
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}
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# The following checks a performance issue reported on the sqlite-dev
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# mailing list on 2013-01-10
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#
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do_execsql_test autoindex1-800 {
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CREATE TABLE accounts(
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_id INTEGER PRIMARY KEY AUTOINCREMENT,
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account_name TEXT,
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account_type TEXT,
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data_set TEXT
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);
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CREATE TABLE data(
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_id INTEGER PRIMARY KEY AUTOINCREMENT,
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package_id INTEGER REFERENCES package(_id),
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mimetype_id INTEGER REFERENCES mimetype(_id) NOT NULL,
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raw_contact_id INTEGER REFERENCES raw_contacts(_id) NOT NULL,
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is_read_only INTEGER NOT NULL DEFAULT 0,
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is_primary INTEGER NOT NULL DEFAULT 0,
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is_super_primary INTEGER NOT NULL DEFAULT 0,
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data_version INTEGER NOT NULL DEFAULT 0,
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data1 TEXT,
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data2 TEXT,
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data3 TEXT,
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data4 TEXT,
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data5 TEXT,
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data6 TEXT,
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data7 TEXT,
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data8 TEXT,
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data9 TEXT,
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data10 TEXT,
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data11 TEXT,
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data12 TEXT,
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data13 TEXT,
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data14 TEXT,
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data15 TEXT,
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data_sync1 TEXT,
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data_sync2 TEXT,
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data_sync3 TEXT,
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data_sync4 TEXT
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);
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CREATE TABLE mimetypes(
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_id INTEGER PRIMARY KEY AUTOINCREMENT,
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mimetype TEXT NOT NULL
|
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);
|
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CREATE TABLE raw_contacts(
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_id INTEGER PRIMARY KEY AUTOINCREMENT,
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account_id INTEGER REFERENCES accounts(_id),
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sourceid TEXT,
|
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raw_contact_is_read_only INTEGER NOT NULL DEFAULT 0,
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version INTEGER NOT NULL DEFAULT 1,
|
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dirty INTEGER NOT NULL DEFAULT 0,
|
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deleted INTEGER NOT NULL DEFAULT 0,
|
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contact_id INTEGER REFERENCES contacts(_id),
|
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aggregation_mode INTEGER NOT NULL DEFAULT 0,
|
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aggregation_needed INTEGER NOT NULL DEFAULT 1,
|
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custom_ringtone TEXT,
|
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send_to_voicemail INTEGER NOT NULL DEFAULT 0,
|
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times_contacted INTEGER NOT NULL DEFAULT 0,
|
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last_time_contacted INTEGER,
|
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starred INTEGER NOT NULL DEFAULT 0,
|
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display_name TEXT,
|
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display_name_alt TEXT,
|
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display_name_source INTEGER NOT NULL DEFAULT 0,
|
||||
phonetic_name TEXT,
|
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phonetic_name_style TEXT,
|
||||
sort_key TEXT,
|
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sort_key_alt TEXT,
|
||||
name_verified INTEGER NOT NULL DEFAULT 0,
|
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sync1 TEXT,
|
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sync2 TEXT,
|
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sync3 TEXT,
|
||||
sync4 TEXT,
|
||||
sync_uid TEXT,
|
||||
sync_version INTEGER NOT NULL DEFAULT 1,
|
||||
has_calendar_event INTEGER NOT NULL DEFAULT 0,
|
||||
modified_time INTEGER,
|
||||
is_restricted INTEGER DEFAULT 0,
|
||||
yp_source TEXT,
|
||||
method_selected INTEGER DEFAULT 0,
|
||||
custom_vibration_type INTEGER DEFAULT 0,
|
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custom_ringtone_path TEXT,
|
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message_notification TEXT,
|
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message_notification_path TEXT
|
||||
);
|
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CREATE INDEX data_mimetype_data1_index ON data (mimetype_id,data1);
|
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CREATE INDEX data_raw_contact_id ON data (raw_contact_id);
|
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CREATE UNIQUE INDEX mime_type ON mimetypes (mimetype);
|
||||
CREATE INDEX raw_contact_sort_key1_index ON raw_contacts (sort_key);
|
||||
CREATE INDEX raw_contact_sort_key2_index ON raw_contacts (sort_key_alt);
|
||||
CREATE INDEX raw_contacts_contact_id_index ON raw_contacts (contact_id);
|
||||
CREATE INDEX raw_contacts_source_id_account_id_index
|
||||
ON raw_contacts (sourceid, account_id);
|
||||
ANALYZE sqlite_master;
|
||||
INSERT INTO sqlite_stat1
|
||||
VALUES('raw_contacts','raw_contact_sort_key2_index','1600 4');
|
||||
INSERT INTO sqlite_stat1
|
||||
VALUES('raw_contacts','raw_contact_sort_key1_index','1600 4');
|
||||
INSERT INTO sqlite_stat1
|
||||
VALUES('raw_contacts','raw_contacts_source_id_account_id_index',
|
||||
'1600 1600 1600');
|
||||
INSERT INTO sqlite_stat1
|
||||
VALUES('raw_contacts','raw_contacts_contact_id_index','1600 1');
|
||||
INSERT INTO sqlite_stat1 VALUES('mimetypes','mime_type','12 1');
|
||||
INSERT INTO sqlite_stat1
|
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VALUES('data','data_mimetype_data1_index','9819 2455 3');
|
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INSERT INTO sqlite_stat1 VALUES('data','data_raw_contact_id','9819 7');
|
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INSERT INTO sqlite_stat1 VALUES('accounts',NULL,'1');
|
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DROP TABLE IF EXISTS sqlite_stat3;
|
||||
ANALYZE sqlite_master;
|
||||
|
||||
EXPLAIN QUERY PLAN
|
||||
SELECT * FROM
|
||||
data JOIN mimetypes ON (data.mimetype_id=mimetypes._id)
|
||||
JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id)
|
||||
JOIN accounts ON (raw_contacts.account_id=accounts._id)
|
||||
WHERE mimetype_id=10 AND data14 IS NOT NULL;
|
||||
} {/SEARCH data .*SEARCH raw_contacts/}
|
||||
do_execsql_test autoindex1-801 {
|
||||
EXPLAIN QUERY PLAN
|
||||
SELECT * FROM
|
||||
data JOIN mimetypes ON (data.mimetype_id=mimetypes._id)
|
||||
JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id)
|
||||
JOIN accounts ON (raw_contacts.account_id=accounts._id)
|
||||
WHERE mimetypes._id=10 AND data14 IS NOT NULL;
|
||||
} {/SEARCH data .*SEARCH raw_contacts/}
|
||||
|
||||
# Another test case from an important user of SQLite. The key feature of
|
||||
# this test is that the "aggindex" subquery should make use of an
|
||||
# automatic index. If it does, the query is fast. If it does not, the
|
||||
# query is deathly slow. It worked OK in 3.7.17 but started going slow
|
||||
# with version 3.8.0. The problem was fixed for 3.8.7 by reducing the
|
||||
# cost estimate for automatic indexes on views and subqueries.
|
||||
#
|
||||
db close
|
||||
forcedelete test.db
|
||||
sqlite3 db test.db
|
||||
do_execsql_test autoindex1-900 {
|
||||
CREATE TABLE messages (ROWID INTEGER PRIMARY KEY AUTOINCREMENT, message_id, document_id BLOB, in_reply_to, remote_id INTEGER, sender INTEGER, subject_prefix, subject INTEGER, date_sent INTEGER, date_received INTEGER, date_created INTEGER, date_last_viewed INTEGER, mailbox INTEGER, remote_mailbox INTEGER, original_mailbox INTEGER, flags INTEGER, read, flagged, size INTEGER, color, encoding, type INTEGER, pad, conversation_id INTEGER DEFAULT -1, snippet TEXT DEFAULT NULL, fuzzy_ancestor INTEGER DEFAULT NULL, automated_conversation INTEGER DEFAULT 0, root_status INTEGER DEFAULT -1, conversation_position INTEGER DEFAULT -1);
|
||||
CREATE INDEX date_index ON messages(date_received);
|
||||
CREATE INDEX date_last_viewed_index ON messages(date_last_viewed);
|
||||
CREATE INDEX date_created_index ON messages(date_created);
|
||||
CREATE INDEX message_message_id_mailbox_index ON messages(message_id, mailbox);
|
||||
CREATE INDEX message_document_id_index ON messages(document_id);
|
||||
CREATE INDEX message_read_index ON messages(read);
|
||||
CREATE INDEX message_flagged_index ON messages(flagged);
|
||||
CREATE INDEX message_mailbox_index ON messages(mailbox, date_received);
|
||||
CREATE INDEX message_remote_mailbox_index ON messages(remote_mailbox, remote_id);
|
||||
CREATE INDEX message_type_index ON messages(type);
|
||||
CREATE INDEX message_conversation_id_conversation_position_index ON messages(conversation_id, conversation_position);
|
||||
CREATE INDEX message_fuzzy_ancestor_index ON messages(fuzzy_ancestor);
|
||||
CREATE INDEX message_subject_fuzzy_ancestor_index ON messages(subject, fuzzy_ancestor);
|
||||
CREATE INDEX message_sender_subject_automated_conversation_index ON messages(sender, subject, automated_conversation);
|
||||
CREATE INDEX message_sender_index ON messages(sender);
|
||||
CREATE INDEX message_root_status ON messages(root_status);
|
||||
CREATE TABLE subjects (ROWID INTEGER PRIMARY KEY, subject COLLATE RTRIM, normalized_subject COLLATE RTRIM);
|
||||
CREATE INDEX subject_subject_index ON subjects(subject);
|
||||
CREATE INDEX subject_normalized_subject_index ON subjects(normalized_subject);
|
||||
CREATE TABLE addresses (ROWID INTEGER PRIMARY KEY, address COLLATE NOCASE, comment, UNIQUE(address, comment));
|
||||
CREATE INDEX addresses_address_index ON addresses(address);
|
||||
CREATE TABLE mailboxes (ROWID INTEGER PRIMARY KEY, url UNIQUE, total_count INTEGER DEFAULT 0, unread_count INTEGER DEFAULT 0, unseen_count INTEGER DEFAULT 0, deleted_count INTEGER DEFAULT 0, unread_count_adjusted_for_duplicates INTEGER DEFAULT 0, change_identifier, source INTEGER, alleged_change_identifier);
|
||||
CREATE INDEX mailboxes_source_index ON mailboxes(source);
|
||||
CREATE TABLE labels (ROWID INTEGER PRIMARY KEY, message_id INTEGER NOT NULL, mailbox_id INTEGER NOT NULL, UNIQUE(message_id, mailbox_id));
|
||||
CREATE INDEX labels_message_id_mailbox_id_index ON labels(message_id, mailbox_id);
|
||||
CREATE INDEX labels_mailbox_id_index ON labels(mailbox_id);
|
||||
|
||||
explain query plan
|
||||
SELECT messages.ROWID,
|
||||
messages.message_id,
|
||||
messages.remote_id,
|
||||
messages.date_received,
|
||||
messages.date_sent,
|
||||
messages.flags,
|
||||
messages.size,
|
||||
messages.color,
|
||||
messages.date_last_viewed,
|
||||
messages.subject_prefix,
|
||||
subjects.subject,
|
||||
sender.comment,
|
||||
sender.address,
|
||||
NULL,
|
||||
messages.mailbox,
|
||||
messages.original_mailbox,
|
||||
NULL,
|
||||
NULL,
|
||||
messages.type,
|
||||
messages.document_id,
|
||||
sender,
|
||||
NULL,
|
||||
messages.conversation_id,
|
||||
messages.conversation_position,
|
||||
agglabels.labels
|
||||
FROM mailboxes AS mailbox
|
||||
JOIN messages ON mailbox.ROWID = messages.mailbox
|
||||
LEFT OUTER JOIN subjects ON messages.subject = subjects.ROWID
|
||||
LEFT OUTER JOIN addresses AS sender ON messages.sender = sender.ROWID
|
||||
LEFT OUTER JOIN (
|
||||
SELECT message_id, group_concat(mailbox_id) as labels
|
||||
FROM labels GROUP BY message_id
|
||||
) AS agglabels ON messages.ROWID = agglabels.message_id
|
||||
WHERE (mailbox.url = 'imap://email.app@imap.gmail.com/%5BGmail%5D/All%20Mail')
|
||||
AND (messages.ROWID IN (
|
||||
SELECT labels.message_id
|
||||
FROM labels JOIN mailboxes ON labels.mailbox_id = mailboxes.ROWID
|
||||
WHERE mailboxes.url = 'imap://email.app@imap.gmail.com/INBOX'))
|
||||
AND messages.mailbox in (6,12,18,24,30,36,42,1,7,13,19,25,31,37,43,2,8,
|
||||
14,20,26,32,38,3,9,15,21,27,33,39,4,10,16,22,28,
|
||||
34,40,5,11,17,23,35,41)
|
||||
ORDER BY date_received DESC;
|
||||
} {/agglabels USING AUTOMATIC COVERING INDEX/}
|
||||
|
||||
# A test case for VIEWs
|
||||
#
|
||||
do_execsql_test autoindex1-901 {
|
||||
CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
|
||||
CREATE TABLE t2(a, b);
|
||||
CREATE VIEW agg2 AS SELECT a, sum(b) AS m FROM t2 GROUP BY a;
|
||||
EXPLAIN QUERY PLAN
|
||||
SELECT t1.z, agg2.m
|
||||
FROM t1 JOIN agg2 ON t1.y=agg2.m
|
||||
WHERE t1.x IN (1,2,3);
|
||||
} {/USING AUTOMATIC COVERING INDEX/}
|
||||
|
||||
# 2015-04-15: A NULL CollSeq pointer in automatic index creation.
|
||||
#
|
||||
do_execsql_test autoindex1-920 {
|
||||
CREATE TABLE t920(x);
|
||||
INSERT INTO t920 VALUES(3),(4),(5);
|
||||
SELECT * FROM t920,(SELECT 0 FROM t920),(VALUES(9)) WHERE 5 IN (x);
|
||||
} {5 0 9 5 0 9 5 0 9}
|
||||
|
||||
#-------------------------------------------------------------------------
|
||||
# An IS term from the WHERE clause of a LEFT JOIN cannot be used as an
|
||||
# index driver for the RHS of a LEFT JOIN. Prior to this being fixed,
|
||||
# the following SELECT count(*) would incorrectly return 1.
|
||||
#
|
||||
do_execsql_test autoindex1-1010 {
|
||||
CREATE TABLE t11(w);
|
||||
CREATE TABLE t12(y);
|
||||
INSERT INTO t11 VALUES(NULL);
|
||||
INSERT INTO t12 VALUES('notnull');
|
||||
}
|
||||
do_execsql_test autoindex1-1020 {
|
||||
SELECT count(*) FROM t11 LEFT JOIN t12 WHERE t12.y IS t11.w;
|
||||
} 0
|
||||
|
||||
# 2022-04-25
|
||||
# https://sqlite.org/forum/forumpost/0d3200f4f3bcd3a3
|
||||
#
|
||||
reset_db
|
||||
do_execsql_test autoindex-1100 {
|
||||
CREATE TABLE t1(a INT, b INT);
|
||||
CREATE TABLE t2(c INT, d INT);
|
||||
CREATE TABLE t3(e TEXT, f TEXT);
|
||||
INSERT INTO t1 VALUES(1, 1);
|
||||
INSERT INTO t2 VALUES(1, 2);
|
||||
INSERT INTO t3 VALUES('abc', 'def');
|
||||
} {}
|
||||
do_execsql_test autoindex-1110 {
|
||||
SELECT * FROM t1, t2 LEFT JOIN t3 ON (t2.d=1) WHERE t2.c = +t1.a;
|
||||
} {1 1 1 2 {} {}}
|
||||
do_execsql_test autoindex-1120 {
|
||||
SELECT * FROM t1 LEFT JOIN t2 ON (t2.c=+t1.a) LEFT JOIN t3 ON (t2.d IS NULL);
|
||||
} {1 1 1 2 {} {}}
|
||||
|
||||
finish_test
|
||||
Loading…
Add table
Add a link
Reference in a new issue