000001 # 2010 April 07
000002 #
000003 # The author disclaims copyright to this source code. In place of
000004 # a legal notice, here is a blessing:
000005 #
000006 # May you do good and not evil.
000007 # May you find forgiveness for yourself and forgive others.
000008 # May you share freely, never taking more than you give.
000009 #
000010 #*************************************************************************
000011 # This file implements regression tests for SQLite library. The
000012 # focus of this script is testing automatic index creation logic.
000013 #
000014 # EVIDENCE-OF: R-34271-33106 PRAGMA automatic_index; PRAGMA
000015 # automatic_index = boolean; Query, set, or clear the automatic indexing
000016 # capability.
000017
000018 set testdir [file dirname $argv0]
000019 source $testdir/tester.tcl
000020
000021 # If the library is not compiled with automatic index support then
000022 # skip all tests in this file.
000023 #
000024 ifcapable {!autoindex} {
000025 finish_test
000026 return
000027 }
000028
000029 # Setup for logging
000030 db close
000031 sqlite3_shutdown
000032 test_sqlite3_log [list lappend ::log]
000033 set ::log [list]
000034 sqlite3 db test.db
000035
000036
000037 # With automatic index turned off, we do a full scan of the T2 table
000038 do_test autoindex1-100 {
000039 db eval {
000040 CREATE TABLE t1(a,b);
000041 INSERT INTO t1 VALUES(1,11);
000042 INSERT INTO t1 VALUES(2,22);
000043 INSERT INTO t1 SELECT a+2, b+22 FROM t1;
000044 INSERT INTO t1 SELECT a+4, b+44 FROM t1;
000045 CREATE TABLE t2(c,d);
000046 INSERT INTO t2 SELECT a, 900+b FROM t1;
000047 }
000048 db eval {
000049 PRAGMA automatic_index=OFF;
000050 SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b;
000051 }
000052 } {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
000053 do_test autoindex1-101 {
000054 db status step
000055 } {63}
000056 do_test autoindex1-102 {
000057 db status autoindex
000058 } {0}
000059
000060 # With autoindex turned on, we build an index once and then use that index
000061 # to find T2 values.
000062 do_test autoindex1-110 {
000063 db eval {
000064 PRAGMA automatic_index=ON;
000065 SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b;
000066 }
000067 } {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
000068 do_test autoindex1-111 {
000069 db status step
000070 } {7}
000071 do_test autoindex1-112 {
000072 db status autoindex
000073 } {7}
000074 do_test autoindex1-113 {
000075 set ::log
000076 } {SQLITE_WARNING_AUTOINDEX {automatic index on t2(c)}}
000077
000078 db close
000079 sqlite3_shutdown
000080 test_sqlite3_log
000081 sqlite3_initialize
000082 sqlite3 db test.db
000083
000084 # The same test as above, but this time the T2 query is a subquery rather
000085 # than a join.
000086 do_test autoindex1-200 {
000087 db eval {
000088 PRAGMA automatic_index=OFF;
000089 SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1;
000090 }
000091 } {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
000092 do_test autoindex1-201 {
000093 db status step
000094 } {35}
000095 do_test autoindex1-202 {
000096 db status autoindex
000097 } {0}
000098 do_test autoindex1-210 {
000099 db eval {
000100 PRAGMA automatic_index=ON;
000101 ANALYZE;
000102 UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t1';
000103 -- Table t2 actually contains 8 rows.
000104 UPDATE sqlite_stat1 SET stat='16' WHERE tbl='t2';
000105 ANALYZE sqlite_master;
000106 SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1;
000107 }
000108 } {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
000109 do_test autoindex1-211 {
000110 db status step
000111 } {7}
000112 do_test autoindex1-212 {
000113 db status autoindex
000114 } {7}
000115
000116
000117 # Modify the second table of the join while the join is in progress
000118 #
000119 do_execsql_test autoindex1-299 {
000120 UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t2';
000121 ANALYZE sqlite_master;
000122 EXPLAIN QUERY PLAN
000123 SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a);
000124 } {/AUTOMATIC COVERING INDEX/}
000125 do_test autoindex1-300 {
000126 set r {}
000127 db eval {SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a)} {
000128 lappend r $b $d
000129 db eval {UPDATE t2 SET d=d+1}
000130 }
000131 set r
000132 } {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
000133 do_test autoindex1-310 {
000134 db eval {SELECT d FROM t2 ORDER BY d}
000135 } {919 930 941 952 963 974 985 996}
000136
000137 # The next test does a 10-way join on unindexed tables. Without
000138 # automatic indices, the join will take a long time to complete.
000139 # With automatic indices, it should only take about a second.
000140 #
000141 do_test autoindex1-400 {
000142 db eval {
000143 CREATE TABLE t4(a, b);
000144 INSERT INTO t4 VALUES(1,2);
000145 INSERT INTO t4 VALUES(2,3);
000146 }
000147 for {set n 2} {$n<4096} {set n [expr {$n+$n}]} {
000148 db eval {INSERT INTO t4 SELECT a+$n, b+$n FROM t4}
000149 }
000150 db eval {
000151 SELECT count(*) FROM t4;
000152 }
000153 } {4096}
000154 do_test autoindex1-401 {
000155 db eval {
000156 SELECT count(*)
000157 FROM t4 AS x1
000158 JOIN t4 AS x2 ON x2.a=x1.b
000159 JOIN t4 AS x3 ON x3.a=x2.b
000160 JOIN t4 AS x4 ON x4.a=x3.b
000161 JOIN t4 AS x5 ON x5.a=x4.b
000162 JOIN t4 AS x6 ON x6.a=x5.b
000163 JOIN t4 AS x7 ON x7.a=x6.b
000164 JOIN t4 AS x8 ON x8.a=x7.b
000165 JOIN t4 AS x9 ON x9.a=x8.b
000166 JOIN t4 AS x10 ON x10.a=x9.b;
000167 }
000168 } {4087}
000169
000170 # Ticket [8011086c85c6c404014c947fcf3eb9f42b184a0d] from 2010-07-08
000171 # Make sure automatic indices are not created for the RHS of an IN expression
000172 # that is not a correlated subquery.
000173 #
000174 do_execsql_test autoindex1-500 {
000175 CREATE TABLE t501(a INTEGER PRIMARY KEY, b);
000176 CREATE TABLE t502(x INTEGER PRIMARY KEY, y);
000177 INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t501',null,'1000000');
000178 INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t502',null,'1000');
000179 ANALYZE sqlite_master;
000180 EXPLAIN QUERY PLAN
000181 SELECT b FROM t501
000182 WHERE t501.a IN (SELECT x FROM t502 WHERE y=?);
000183 } {
000184 0 0 0 {SEARCH TABLE t501 USING INTEGER PRIMARY KEY (rowid=?)}
000185 0 0 0 {EXECUTE LIST SUBQUERY 1}
000186 1 0 0 {SCAN TABLE t502}
000187 }
000188 do_execsql_test autoindex1-501 {
000189 EXPLAIN QUERY PLAN
000190 SELECT b FROM t501
000191 WHERE t501.a IN (SELECT x FROM t502 WHERE y=t501.b);
000192 } {
000193 0 0 0 {SCAN TABLE t501}
000194 0 0 0 {EXECUTE CORRELATED LIST SUBQUERY 1}
000195 1 0 0 {SEARCH TABLE t502 USING AUTOMATIC COVERING INDEX (y=?)}
000196 }
000197 do_execsql_test autoindex1-502 {
000198 EXPLAIN QUERY PLAN
000199 SELECT b FROM t501
000200 WHERE t501.a=123
000201 AND t501.a IN (SELECT x FROM t502 WHERE y=t501.b);
000202 } {
000203 0 0 0 {SEARCH TABLE t501 USING INTEGER PRIMARY KEY (rowid=?)}
000204 0 0 0 {EXECUTE CORRELATED LIST SUBQUERY 1}
000205 1 0 0 {SCAN TABLE t502}
000206 }
000207
000208
000209 # The following code checks a performance regression reported on the
000210 # mailing list on 2010-10-19. The problem is that the nRowEst field
000211 # of ephermeral tables was not being initialized correctly and so no
000212 # automatic index was being created for the emphemeral table when it was
000213 # used as part of a join.
000214 #
000215 do_execsql_test autoindex1-600 {
000216 CREATE TABLE flock_owner(
000217 owner_rec_id INTEGER CONSTRAINT flock_owner_key PRIMARY KEY,
000218 flock_no VARCHAR(6) NOT NULL REFERENCES flock (flock_no),
000219 owner_person_id INTEGER NOT NULL REFERENCES person (person_id),
000220 owner_change_date TEXT, last_changed TEXT NOT NULL,
000221 CONSTRAINT fo_owner_date UNIQUE (flock_no, owner_change_date)
000222 );
000223 CREATE TABLE sheep (
000224 Sheep_No char(7) NOT NULL,
000225 Date_of_Birth char(8),
000226 Sort_DoB text,
000227 Flock_Book_Vol char(2),
000228 Breeder_No char(6),
000229 Breeder_Person integer,
000230 Originating_Flock char(6),
000231 Registering_Flock char(6),
000232 Tag_Prefix char(9),
000233 Tag_No char(15),
000234 Sort_Tag_No integer,
000235 Breeders_Temp_Tag char(15),
000236 Sex char(1),
000237 Sheep_Name char(32),
000238 Sire_No char(7),
000239 Dam_No char(7),
000240 Register_Code char(1),
000241 Colour char(48),
000242 Colour_Code char(2),
000243 Pattern_Code char(8),
000244 Horns char(1),
000245 Litter_Size char(1),
000246 Coeff_of_Inbreeding real,
000247 Date_of_Registration text,
000248 Date_Last_Changed text,
000249 UNIQUE(Sheep_No));
000250 CREATE INDEX fo_flock_no_index
000251 ON flock_owner (flock_no);
000252 CREATE INDEX fo_owner_change_date_index
000253 ON flock_owner (owner_change_date);
000254 CREATE INDEX fo_owner_person_id_index
000255 ON flock_owner (owner_person_id);
000256 CREATE INDEX sheep_org_flock_index
000257 ON sheep (originating_flock);
000258 CREATE INDEX sheep_reg_flock_index
000259 ON sheep (registering_flock);
000260 EXPLAIN QUERY PLAN
000261 SELECT x.sheep_no, x.registering_flock, x.date_of_registration
000262 FROM sheep x LEFT JOIN
000263 (SELECT s.sheep_no, prev.flock_no, prev.owner_person_id,
000264 s.date_of_registration, prev.owner_change_date
000265 FROM sheep s JOIN flock_owner prev ON s.registering_flock =
000266 prev.flock_no
000267 AND (prev.owner_change_date <= s.date_of_registration || ' 00:00:00')
000268 WHERE NOT EXISTS
000269 (SELECT 'x' FROM flock_owner later
000270 WHERE prev.flock_no = later.flock_no
000271 AND later.owner_change_date > prev.owner_change_date
000272 AND later.owner_change_date <= s.date_of_registration||' 00:00:00')
000273 ) y ON x.sheep_no = y.sheep_no
000274 WHERE y.sheep_no IS NULL
000275 ORDER BY x.registering_flock;
000276 } {
000277 1 0 0 {SCAN TABLE sheep AS s}
000278 1 1 1 {SEARCH TABLE flock_owner AS prev USING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date<?)}
000279 1 0 0 {EXECUTE CORRELATED SCALAR SUBQUERY 2}
000280 2 0 0 {SEARCH TABLE flock_owner AS later USING COVERING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date>? AND owner_change_date<?)}
000281 0 0 0 {SCAN TABLE sheep AS x USING INDEX sheep_reg_flock_index}
000282 0 1 1 {SEARCH SUBQUERY 1 AS y USING AUTOMATIC COVERING INDEX (sheep_no=?)}
000283 }
000284
000285
000286 do_execsql_test autoindex1-700 {
000287 CREATE TABLE t5(a, b, c);
000288 EXPLAIN QUERY PLAN SELECT a FROM t5 WHERE b=10 ORDER BY c;
000289 } {
000290 0 0 0 {SCAN TABLE t5}
000291 0 0 0 {USE TEMP B-TREE FOR ORDER BY}
000292 }
000293
000294 # The following checks a performance issue reported on the sqlite-dev
000295 # mailing list on 2013-01-10
000296 #
000297 do_execsql_test autoindex1-800 {
000298 CREATE TABLE accounts(
000299 _id INTEGER PRIMARY KEY AUTOINCREMENT,
000300 account_name TEXT,
000301 account_type TEXT,
000302 data_set TEXT
000303 );
000304 CREATE TABLE data(
000305 _id INTEGER PRIMARY KEY AUTOINCREMENT,
000306 package_id INTEGER REFERENCES package(_id),
000307 mimetype_id INTEGER REFERENCES mimetype(_id) NOT NULL,
000308 raw_contact_id INTEGER REFERENCES raw_contacts(_id) NOT NULL,
000309 is_read_only INTEGER NOT NULL DEFAULT 0,
000310 is_primary INTEGER NOT NULL DEFAULT 0,
000311 is_super_primary INTEGER NOT NULL DEFAULT 0,
000312 data_version INTEGER NOT NULL DEFAULT 0,
000313 data1 TEXT,
000314 data2 TEXT,
000315 data3 TEXT,
000316 data4 TEXT,
000317 data5 TEXT,
000318 data6 TEXT,
000319 data7 TEXT,
000320 data8 TEXT,
000321 data9 TEXT,
000322 data10 TEXT,
000323 data11 TEXT,
000324 data12 TEXT,
000325 data13 TEXT,
000326 data14 TEXT,
000327 data15 TEXT,
000328 data_sync1 TEXT,
000329 data_sync2 TEXT,
000330 data_sync3 TEXT,
000331 data_sync4 TEXT
000332 );
000333 CREATE TABLE mimetypes(
000334 _id INTEGER PRIMARY KEY AUTOINCREMENT,
000335 mimetype TEXT NOT NULL
000336 );
000337 CREATE TABLE raw_contacts(
000338 _id INTEGER PRIMARY KEY AUTOINCREMENT,
000339 account_id INTEGER REFERENCES accounts(_id),
000340 sourceid TEXT,
000341 raw_contact_is_read_only INTEGER NOT NULL DEFAULT 0,
000342 version INTEGER NOT NULL DEFAULT 1,
000343 dirty INTEGER NOT NULL DEFAULT 0,
000344 deleted INTEGER NOT NULL DEFAULT 0,
000345 contact_id INTEGER REFERENCES contacts(_id),
000346 aggregation_mode INTEGER NOT NULL DEFAULT 0,
000347 aggregation_needed INTEGER NOT NULL DEFAULT 1,
000348 custom_ringtone TEXT,
000349 send_to_voicemail INTEGER NOT NULL DEFAULT 0,
000350 times_contacted INTEGER NOT NULL DEFAULT 0,
000351 last_time_contacted INTEGER,
000352 starred INTEGER NOT NULL DEFAULT 0,
000353 display_name TEXT,
000354 display_name_alt TEXT,
000355 display_name_source INTEGER NOT NULL DEFAULT 0,
000356 phonetic_name TEXT,
000357 phonetic_name_style TEXT,
000358 sort_key TEXT,
000359 sort_key_alt TEXT,
000360 name_verified INTEGER NOT NULL DEFAULT 0,
000361 sync1 TEXT,
000362 sync2 TEXT,
000363 sync3 TEXT,
000364 sync4 TEXT,
000365 sync_uid TEXT,
000366 sync_version INTEGER NOT NULL DEFAULT 1,
000367 has_calendar_event INTEGER NOT NULL DEFAULT 0,
000368 modified_time INTEGER,
000369 is_restricted INTEGER DEFAULT 0,
000370 yp_source TEXT,
000371 method_selected INTEGER DEFAULT 0,
000372 custom_vibration_type INTEGER DEFAULT 0,
000373 custom_ringtone_path TEXT,
000374 message_notification TEXT,
000375 message_notification_path TEXT
000376 );
000377 CREATE INDEX data_mimetype_data1_index ON data (mimetype_id,data1);
000378 CREATE INDEX data_raw_contact_id ON data (raw_contact_id);
000379 CREATE UNIQUE INDEX mime_type ON mimetypes (mimetype);
000380 CREATE INDEX raw_contact_sort_key1_index ON raw_contacts (sort_key);
000381 CREATE INDEX raw_contact_sort_key2_index ON raw_contacts (sort_key_alt);
000382 CREATE INDEX raw_contacts_contact_id_index ON raw_contacts (contact_id);
000383 CREATE INDEX raw_contacts_source_id_account_id_index
000384 ON raw_contacts (sourceid, account_id);
000385 ANALYZE sqlite_master;
000386 INSERT INTO sqlite_stat1
000387 VALUES('raw_contacts','raw_contact_sort_key2_index','1600 4');
000388 INSERT INTO sqlite_stat1
000389 VALUES('raw_contacts','raw_contact_sort_key1_index','1600 4');
000390 INSERT INTO sqlite_stat1
000391 VALUES('raw_contacts','raw_contacts_source_id_account_id_index',
000392 '1600 1600 1600');
000393 INSERT INTO sqlite_stat1
000394 VALUES('raw_contacts','raw_contacts_contact_id_index','1600 1');
000395 INSERT INTO sqlite_stat1 VALUES('mimetypes','mime_type','12 1');
000396 INSERT INTO sqlite_stat1
000397 VALUES('data','data_mimetype_data1_index','9819 2455 3');
000398 INSERT INTO sqlite_stat1 VALUES('data','data_raw_contact_id','9819 7');
000399 INSERT INTO sqlite_stat1 VALUES('accounts',NULL,'1');
000400 DROP TABLE IF EXISTS sqlite_stat3;
000401 ANALYZE sqlite_master;
000402
000403 EXPLAIN QUERY PLAN
000404 SELECT * FROM
000405 data JOIN mimetypes ON (data.mimetype_id=mimetypes._id)
000406 JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id)
000407 JOIN accounts ON (raw_contacts.account_id=accounts._id)
000408 WHERE mimetype_id=10 AND data14 IS NOT NULL;
000409 } {/SEARCH TABLE data .*SEARCH TABLE raw_contacts/}
000410 do_execsql_test autoindex1-801 {
000411 EXPLAIN QUERY PLAN
000412 SELECT * FROM
000413 data JOIN mimetypes ON (data.mimetype_id=mimetypes._id)
000414 JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id)
000415 JOIN accounts ON (raw_contacts.account_id=accounts._id)
000416 WHERE mimetypes._id=10 AND data14 IS NOT NULL;
000417 } {/SEARCH TABLE data .*SEARCH TABLE raw_contacts/}
000418
000419 # Another test case from an important user of SQLite. The key feature of
000420 # this test is that the "aggindex" subquery should make use of an
000421 # automatic index. If it does, the query is fast. If it does not, the
000422 # query is deathly slow. It worked OK in 3.7.17 but started going slow
000423 # with version 3.8.0. The problem was fixed for 3.8.7 by reducing the
000424 # cost estimate for automatic indexes on views and subqueries.
000425 #
000426 db close
000427 forcedelete test.db
000428 sqlite3 db test.db
000429 do_execsql_test autoindex1-900 {
000430 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);
000431 CREATE INDEX date_index ON messages(date_received);
000432 CREATE INDEX date_last_viewed_index ON messages(date_last_viewed);
000433 CREATE INDEX date_created_index ON messages(date_created);
000434 CREATE INDEX message_message_id_mailbox_index ON messages(message_id, mailbox);
000435 CREATE INDEX message_document_id_index ON messages(document_id);
000436 CREATE INDEX message_read_index ON messages(read);
000437 CREATE INDEX message_flagged_index ON messages(flagged);
000438 CREATE INDEX message_mailbox_index ON messages(mailbox, date_received);
000439 CREATE INDEX message_remote_mailbox_index ON messages(remote_mailbox, remote_id);
000440 CREATE INDEX message_type_index ON messages(type);
000441 CREATE INDEX message_conversation_id_conversation_position_index ON messages(conversation_id, conversation_position);
000442 CREATE INDEX message_fuzzy_ancestor_index ON messages(fuzzy_ancestor);
000443 CREATE INDEX message_subject_fuzzy_ancestor_index ON messages(subject, fuzzy_ancestor);
000444 CREATE INDEX message_sender_subject_automated_conversation_index ON messages(sender, subject, automated_conversation);
000445 CREATE INDEX message_sender_index ON messages(sender);
000446 CREATE INDEX message_root_status ON messages(root_status);
000447 CREATE TABLE subjects (ROWID INTEGER PRIMARY KEY, subject COLLATE RTRIM, normalized_subject COLLATE RTRIM);
000448 CREATE INDEX subject_subject_index ON subjects(subject);
000449 CREATE INDEX subject_normalized_subject_index ON subjects(normalized_subject);
000450 CREATE TABLE addresses (ROWID INTEGER PRIMARY KEY, address COLLATE NOCASE, comment, UNIQUE(address, comment));
000451 CREATE INDEX addresses_address_index ON addresses(address);
000452 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);
000453 CREATE INDEX mailboxes_source_index ON mailboxes(source);
000454 CREATE TABLE labels (ROWID INTEGER PRIMARY KEY, message_id INTEGER NOT NULL, mailbox_id INTEGER NOT NULL, UNIQUE(message_id, mailbox_id));
000455 CREATE INDEX labels_message_id_mailbox_id_index ON labels(message_id, mailbox_id);
000456 CREATE INDEX labels_mailbox_id_index ON labels(mailbox_id);
000457
000458 explain query plan
000459 SELECT messages.ROWID,
000460 messages.message_id,
000461 messages.remote_id,
000462 messages.date_received,
000463 messages.date_sent,
000464 messages.flags,
000465 messages.size,
000466 messages.color,
000467 messages.date_last_viewed,
000468 messages.subject_prefix,
000469 subjects.subject,
000470 sender.comment,
000471 sender.address,
000472 NULL,
000473 messages.mailbox,
000474 messages.original_mailbox,
000475 NULL,
000476 NULL,
000477 messages.type,
000478 messages.document_id,
000479 sender,
000480 NULL,
000481 messages.conversation_id,
000482 messages.conversation_position,
000483 agglabels.labels
000484 FROM mailboxes AS mailbox
000485 JOIN messages ON mailbox.ROWID = messages.mailbox
000486 LEFT OUTER JOIN subjects ON messages.subject = subjects.ROWID
000487 LEFT OUTER JOIN addresses AS sender ON messages.sender = sender.ROWID
000488 LEFT OUTER JOIN (
000489 SELECT message_id, group_concat(mailbox_id) as labels
000490 FROM labels GROUP BY message_id
000491 ) AS agglabels ON messages.ROWID = agglabels.message_id
000492 WHERE (mailbox.url = 'imap://email.app@imap.gmail.com/%5BGmail%5D/All%20Mail')
000493 AND (messages.ROWID IN (
000494 SELECT labels.message_id
000495 FROM labels JOIN mailboxes ON labels.mailbox_id = mailboxes.ROWID
000496 WHERE mailboxes.url = 'imap://email.app@imap.gmail.com/INBOX'))
000497 AND messages.mailbox in (6,12,18,24,30,36,42,1,7,13,19,25,31,37,43,2,8,
000498 14,20,26,32,38,3,9,15,21,27,33,39,4,10,16,22,28,
000499 34,40,5,11,17,23,35,41)
000500 ORDER BY date_received DESC;
000501 } {/agglabels USING AUTOMATIC COVERING INDEX/}
000502
000503 # A test case for VIEWs
000504 #
000505 do_execsql_test autoindex1-901 {
000506 CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
000507 CREATE TABLE t2(a, b);
000508 CREATE VIEW agg2 AS SELECT a, sum(b) AS m FROM t2 GROUP BY a;
000509 EXPLAIN QUERY PLAN
000510 SELECT t1.z, agg2.m
000511 FROM t1 JOIN agg2 ON t1.y=agg2.m
000512 WHERE t1.x IN (1,2,3);
000513 } {/USING AUTOMATIC COVERING INDEX/}
000514
000515 # 2015-04-15: A NULL CollSeq pointer in automatic index creation.
000516 #
000517 do_execsql_test autoindex1-920 {
000518 CREATE TABLE t920(x);
000519 INSERT INTO t920 VALUES(3),(4),(5);
000520 SELECT * FROM t920,(SELECT 0 FROM t920),(VALUES(9)) WHERE 5 IN (x);
000521 } {5 0 9 5 0 9 5 0 9}
000522
000523 finish_test