1# 2010 April 07 2# 3# The author disclaims copyright to this source code. In place of 4# a legal notice, here is a blessing: 5# 6# May you do good and not evil. 7# May you find forgiveness for yourself and forgive others. 8# May you share freely, never taking more than you give. 9# 10#************************************************************************* 11# This file implements regression tests for SQLite library. The 12# focus of this script is testing automatic index creation logic. 13# 14# EVIDENCE-OF: R-34271-33106 PRAGMA automatic_index; PRAGMA 15# automatic_index = boolean; Query, set, or clear the automatic indexing 16# capability. 17 18set testdir [file dirname $argv0] 19source $testdir/tester.tcl 20 21# If the library is not compiled with automatic index support then 22# skip all tests in this file. 23# 24ifcapable {!autoindex} { 25 finish_test 26 return 27} 28 29# Setup for logging 30db close 31sqlite3_shutdown 32test_sqlite3_log [list lappend ::log] 33set ::log [list] 34sqlite3 db test.db 35 36 37# With automatic index turned off, we do a full scan of the T2 table 38do_test autoindex1-100 { 39 db eval { 40 CREATE TABLE t1(a,b); 41 INSERT INTO t1 VALUES(1,11); 42 INSERT INTO t1 VALUES(2,22); 43 INSERT INTO t1 SELECT a+2, b+22 FROM t1; 44 INSERT INTO t1 SELECT a+4, b+44 FROM t1; 45 CREATE TABLE t2(c,d); 46 INSERT INTO t2 SELECT a, 900+b FROM t1; 47 } 48 db eval { 49 PRAGMA automatic_index=OFF; 50 SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b; 51 } 52} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988} 53do_test autoindex1-101 { 54 db status step 55} {63} 56do_test autoindex1-102 { 57 db status autoindex 58} {0} 59 60# With autoindex turned on, we build an index once and then use that index 61# to find T2 values. 62do_test autoindex1-110 { 63 db eval { 64 PRAGMA automatic_index=ON; 65 SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b; 66 } 67} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988} 68do_test autoindex1-111 { 69 db status step 70} {7} 71do_test autoindex1-112 { 72 db status autoindex 73} {7} 74do_test autoindex1-113 { 75 set ::log 76} {SQLITE_WARNING_AUTOINDEX {automatic index on t2(c)}} 77 78db close 79sqlite3_shutdown 80test_sqlite3_log 81sqlite3_initialize 82sqlite3 db test.db 83 84# The same test as above, but this time the T2 query is a subquery rather 85# than a join. 86do_test autoindex1-200 { 87 db eval { 88 PRAGMA automatic_index=OFF; 89 SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1; 90 } 91} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988} 92do_test autoindex1-201 { 93 db status step 94} {35} 95do_test autoindex1-202 { 96 db status autoindex 97} {0} 98do_test autoindex1-210 { 99 db eval { 100 PRAGMA automatic_index=ON; 101 ANALYZE; 102 UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t1'; 103 -- Table t2 actually contains 8 rows. 104 UPDATE sqlite_stat1 SET stat='16' WHERE tbl='t2'; 105 ANALYZE sqlite_master; 106 SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1; 107 } 108} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988} 109do_test autoindex1-211 { 110 db status step 111} {7} 112do_test autoindex1-212 { 113 db status autoindex 114} {7} 115 116 117# Modify the second table of the join while the join is in progress 118# 119do_execsql_test autoindex1-299 { 120 UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t2'; 121 ANALYZE sqlite_master; 122 EXPLAIN QUERY PLAN 123 SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a); 124} {/AUTOMATIC COVERING INDEX/} 125do_test autoindex1-300 { 126 set r {} 127 db eval {SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a)} { 128 lappend r $b $d 129 db eval {UPDATE t2 SET d=d+1} 130 } 131 set r 132} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988} 133do_test autoindex1-310 { 134 db eval {SELECT d FROM t2 ORDER BY d} 135} {919 930 941 952 963 974 985 996} 136 137# The next test does a 10-way join on unindexed tables. Without 138# automatic indices, the join will take a long time to complete. 139# With automatic indices, it should only take about a second. 140# 141do_test autoindex1-400 { 142 db eval { 143 CREATE TABLE t4(a, b); 144 INSERT INTO t4 VALUES(1,2); 145 INSERT INTO t4 VALUES(2,3); 146 } 147 for {set n 2} {$n<4096} {set n [expr {$n+$n}]} { 148 db eval {INSERT INTO t4 SELECT a+$n, b+$n FROM t4} 149 } 150 db eval { 151 SELECT count(*) FROM t4; 152 } 153} {4096} 154do_test autoindex1-401 { 155 db eval { 156 SELECT count(*) 157 FROM t4 AS x1 158 JOIN t4 AS x2 ON x2.a=x1.b 159 JOIN t4 AS x3 ON x3.a=x2.b 160 JOIN t4 AS x4 ON x4.a=x3.b 161 JOIN t4 AS x5 ON x5.a=x4.b 162 JOIN t4 AS x6 ON x6.a=x5.b 163 JOIN t4 AS x7 ON x7.a=x6.b 164 JOIN t4 AS x8 ON x8.a=x7.b 165 JOIN t4 AS x9 ON x9.a=x8.b 166 JOIN t4 AS x10 ON x10.a=x9.b; 167 } 168} {4087} 169 170# Ticket [8011086c85c6c404014c947fcf3eb9f42b184a0d] from 2010-07-08 171# Make sure automatic indices are not created for the RHS of an IN expression 172# that is not a correlated subquery. 173# 174do_execsql_test autoindex1-500 { 175 CREATE TABLE t501(a INTEGER PRIMARY KEY, b); 176 CREATE TABLE t502(x INTEGER PRIMARY KEY, y); 177 INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t501',null,'1000000'); 178 INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t502',null,'1000'); 179 ANALYZE sqlite_master; 180 EXPLAIN QUERY PLAN 181 SELECT b FROM t501 182 WHERE t501.a IN (SELECT x FROM t502 WHERE y=?); 183} { 184 0 0 0 {SEARCH TABLE t501 USING INTEGER PRIMARY KEY (rowid=?)} 185 0 0 0 {EXECUTE LIST SUBQUERY 1} 186 1 0 0 {SCAN TABLE t502} 187} 188do_execsql_test autoindex1-501 { 189 EXPLAIN QUERY PLAN 190 SELECT b FROM t501 191 WHERE t501.a IN (SELECT x FROM t502 WHERE y=t501.b); 192} { 193 0 0 0 {SCAN TABLE t501} 194 0 0 0 {EXECUTE CORRELATED LIST SUBQUERY 1} 195 1 0 0 {SEARCH TABLE t502 USING AUTOMATIC COVERING INDEX (y=?)} 196} 197do_execsql_test autoindex1-502 { 198 EXPLAIN QUERY PLAN 199 SELECT b FROM t501 200 WHERE t501.a=123 201 AND t501.a IN (SELECT x FROM t502 WHERE y=t501.b); 202} { 203 0 0 0 {SEARCH TABLE t501 USING INTEGER PRIMARY KEY (rowid=?)} 204 0 0 0 {EXECUTE CORRELATED LIST SUBQUERY 1} 205 1 0 0 {SCAN TABLE t502} 206} 207 208 209# The following code checks a performance regression reported on the 210# mailing list on 2010-10-19. The problem is that the nRowEst field 211# of ephermeral tables was not being initialized correctly and so no 212# automatic index was being created for the emphemeral table when it was 213# used as part of a join. 214# 215do_execsql_test autoindex1-600 { 216 CREATE TABLE flock_owner( 217 owner_rec_id INTEGER CONSTRAINT flock_owner_key PRIMARY KEY, 218 flock_no VARCHAR(6) NOT NULL REFERENCES flock (flock_no), 219 owner_person_id INTEGER NOT NULL REFERENCES person (person_id), 220 owner_change_date TEXT, last_changed TEXT NOT NULL, 221 CONSTRAINT fo_owner_date UNIQUE (flock_no, owner_change_date) 222 ); 223 CREATE TABLE sheep ( 224 Sheep_No char(7) NOT NULL, 225 Date_of_Birth char(8), 226 Sort_DoB text, 227 Flock_Book_Vol char(2), 228 Breeder_No char(6), 229 Breeder_Person integer, 230 Originating_Flock char(6), 231 Registering_Flock char(6), 232 Tag_Prefix char(9), 233 Tag_No char(15), 234 Sort_Tag_No integer, 235 Breeders_Temp_Tag char(15), 236 Sex char(1), 237 Sheep_Name char(32), 238 Sire_No char(7), 239 Dam_No char(7), 240 Register_Code char(1), 241 Colour char(48), 242 Colour_Code char(2), 243 Pattern_Code char(8), 244 Horns char(1), 245 Litter_Size char(1), 246 Coeff_of_Inbreeding real, 247 Date_of_Registration text, 248 Date_Last_Changed text, 249 UNIQUE(Sheep_No)); 250 CREATE INDEX fo_flock_no_index 251 ON flock_owner (flock_no); 252 CREATE INDEX fo_owner_change_date_index 253 ON flock_owner (owner_change_date); 254 CREATE INDEX fo_owner_person_id_index 255 ON flock_owner (owner_person_id); 256 CREATE INDEX sheep_org_flock_index 257 ON sheep (originating_flock); 258 CREATE INDEX sheep_reg_flock_index 259 ON sheep (registering_flock); 260 EXPLAIN QUERY PLAN 261 SELECT x.sheep_no, x.registering_flock, x.date_of_registration 262 FROM sheep x LEFT JOIN 263 (SELECT s.sheep_no, prev.flock_no, prev.owner_person_id, 264 s.date_of_registration, prev.owner_change_date 265 FROM sheep s JOIN flock_owner prev ON s.registering_flock = 266 prev.flock_no 267 AND (prev.owner_change_date <= s.date_of_registration || ' 00:00:00') 268 WHERE NOT EXISTS 269 (SELECT 'x' FROM flock_owner later 270 WHERE prev.flock_no = later.flock_no 271 AND later.owner_change_date > prev.owner_change_date 272 AND later.owner_change_date <= s.date_of_registration||' 00:00:00') 273 ) y ON x.sheep_no = y.sheep_no 274 WHERE y.sheep_no IS NULL 275 ORDER BY x.registering_flock; 276} { 277 1 0 0 {SCAN TABLE sheep AS s} 278 1 1 1 {SEARCH TABLE flock_owner AS prev USING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date<?)} 279 1 0 0 {EXECUTE CORRELATED SCALAR SUBQUERY 2} 280 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<?)} 281 0 0 0 {SCAN TABLE sheep AS x USING INDEX sheep_reg_flock_index} 282 0 1 1 {SEARCH SUBQUERY 1 AS y USING AUTOMATIC COVERING INDEX (sheep_no=?)} 283} 284 285 286do_execsql_test autoindex1-700 { 287 CREATE TABLE t5(a, b, c); 288 EXPLAIN QUERY PLAN SELECT a FROM t5 WHERE b=10 ORDER BY c; 289} { 290 0 0 0 {SCAN TABLE t5} 291 0 0 0 {USE TEMP B-TREE FOR ORDER BY} 292} 293 294# The following checks a performance issue reported on the sqlite-dev 295# mailing list on 2013-01-10 296# 297do_execsql_test autoindex1-800 { 298 CREATE TABLE accounts( 299 _id INTEGER PRIMARY KEY AUTOINCREMENT, 300 account_name TEXT, 301 account_type TEXT, 302 data_set TEXT 303 ); 304 CREATE TABLE data( 305 _id INTEGER PRIMARY KEY AUTOINCREMENT, 306 package_id INTEGER REFERENCES package(_id), 307 mimetype_id INTEGER REFERENCES mimetype(_id) NOT NULL, 308 raw_contact_id INTEGER REFERENCES raw_contacts(_id) NOT NULL, 309 is_read_only INTEGER NOT NULL DEFAULT 0, 310 is_primary INTEGER NOT NULL DEFAULT 0, 311 is_super_primary INTEGER NOT NULL DEFAULT 0, 312 data_version INTEGER NOT NULL DEFAULT 0, 313 data1 TEXT, 314 data2 TEXT, 315 data3 TEXT, 316 data4 TEXT, 317 data5 TEXT, 318 data6 TEXT, 319 data7 TEXT, 320 data8 TEXT, 321 data9 TEXT, 322 data10 TEXT, 323 data11 TEXT, 324 data12 TEXT, 325 data13 TEXT, 326 data14 TEXT, 327 data15 TEXT, 328 data_sync1 TEXT, 329 data_sync2 TEXT, 330 data_sync3 TEXT, 331 data_sync4 TEXT 332 ); 333 CREATE TABLE mimetypes( 334 _id INTEGER PRIMARY KEY AUTOINCREMENT, 335 mimetype TEXT NOT NULL 336 ); 337 CREATE TABLE raw_contacts( 338 _id INTEGER PRIMARY KEY AUTOINCREMENT, 339 account_id INTEGER REFERENCES accounts(_id), 340 sourceid TEXT, 341 raw_contact_is_read_only INTEGER NOT NULL DEFAULT 0, 342 version INTEGER NOT NULL DEFAULT 1, 343 dirty INTEGER NOT NULL DEFAULT 0, 344 deleted INTEGER NOT NULL DEFAULT 0, 345 contact_id INTEGER REFERENCES contacts(_id), 346 aggregation_mode INTEGER NOT NULL DEFAULT 0, 347 aggregation_needed INTEGER NOT NULL DEFAULT 1, 348 custom_ringtone TEXT, 349 send_to_voicemail INTEGER NOT NULL DEFAULT 0, 350 times_contacted INTEGER NOT NULL DEFAULT 0, 351 last_time_contacted INTEGER, 352 starred INTEGER NOT NULL DEFAULT 0, 353 display_name TEXT, 354 display_name_alt TEXT, 355 display_name_source INTEGER NOT NULL DEFAULT 0, 356 phonetic_name TEXT, 357 phonetic_name_style TEXT, 358 sort_key TEXT, 359 sort_key_alt TEXT, 360 name_verified INTEGER NOT NULL DEFAULT 0, 361 sync1 TEXT, 362 sync2 TEXT, 363 sync3 TEXT, 364 sync4 TEXT, 365 sync_uid TEXT, 366 sync_version INTEGER NOT NULL DEFAULT 1, 367 has_calendar_event INTEGER NOT NULL DEFAULT 0, 368 modified_time INTEGER, 369 is_restricted INTEGER DEFAULT 0, 370 yp_source TEXT, 371 method_selected INTEGER DEFAULT 0, 372 custom_vibration_type INTEGER DEFAULT 0, 373 custom_ringtone_path TEXT, 374 message_notification TEXT, 375 message_notification_path TEXT 376 ); 377 CREATE INDEX data_mimetype_data1_index ON data (mimetype_id,data1); 378 CREATE INDEX data_raw_contact_id ON data (raw_contact_id); 379 CREATE UNIQUE INDEX mime_type ON mimetypes (mimetype); 380 CREATE INDEX raw_contact_sort_key1_index ON raw_contacts (sort_key); 381 CREATE INDEX raw_contact_sort_key2_index ON raw_contacts (sort_key_alt); 382 CREATE INDEX raw_contacts_contact_id_index ON raw_contacts (contact_id); 383 CREATE INDEX raw_contacts_source_id_account_id_index 384 ON raw_contacts (sourceid, account_id); 385 ANALYZE sqlite_master; 386 INSERT INTO sqlite_stat1 387 VALUES('raw_contacts','raw_contact_sort_key2_index','1600 4'); 388 INSERT INTO sqlite_stat1 389 VALUES('raw_contacts','raw_contact_sort_key1_index','1600 4'); 390 INSERT INTO sqlite_stat1 391 VALUES('raw_contacts','raw_contacts_source_id_account_id_index', 392 '1600 1600 1600'); 393 INSERT INTO sqlite_stat1 394 VALUES('raw_contacts','raw_contacts_contact_id_index','1600 1'); 395 INSERT INTO sqlite_stat1 VALUES('mimetypes','mime_type','12 1'); 396 INSERT INTO sqlite_stat1 397 VALUES('data','data_mimetype_data1_index','9819 2455 3'); 398 INSERT INTO sqlite_stat1 VALUES('data','data_raw_contact_id','9819 7'); 399 INSERT INTO sqlite_stat1 VALUES('accounts',NULL,'1'); 400 DROP TABLE IF EXISTS sqlite_stat3; 401 ANALYZE sqlite_master; 402 403 EXPLAIN QUERY PLAN 404 SELECT * FROM 405 data JOIN mimetypes ON (data.mimetype_id=mimetypes._id) 406 JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id) 407 JOIN accounts ON (raw_contacts.account_id=accounts._id) 408 WHERE mimetype_id=10 AND data14 IS NOT NULL; 409} {/SEARCH TABLE data .*SEARCH TABLE raw_contacts/} 410do_execsql_test autoindex1-801 { 411 EXPLAIN QUERY PLAN 412 SELECT * FROM 413 data JOIN mimetypes ON (data.mimetype_id=mimetypes._id) 414 JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id) 415 JOIN accounts ON (raw_contacts.account_id=accounts._id) 416 WHERE mimetypes._id=10 AND data14 IS NOT NULL; 417} {/SEARCH TABLE data .*SEARCH TABLE raw_contacts/} 418 419# Another test case from an important user of SQLite. The key feature of 420# this test is that the "aggindex" subquery should make use of an 421# automatic index. If it does, the query is fast. If it does not, the 422# query is deathly slow. It worked OK in 3.7.17 but started going slow 423# with version 3.8.0. The problem was fixed for 3.8.7 by reducing the 424# cost estimate for automatic indexes on views and subqueries. 425# 426db close 427forcedelete test.db 428sqlite3 db test.db 429do_execsql_test autoindex1-900 { 430 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); 431 CREATE INDEX date_index ON messages(date_received); 432 CREATE INDEX date_last_viewed_index ON messages(date_last_viewed); 433 CREATE INDEX date_created_index ON messages(date_created); 434 CREATE INDEX message_message_id_mailbox_index ON messages(message_id, mailbox); 435 CREATE INDEX message_document_id_index ON messages(document_id); 436 CREATE INDEX message_read_index ON messages(read); 437 CREATE INDEX message_flagged_index ON messages(flagged); 438 CREATE INDEX message_mailbox_index ON messages(mailbox, date_received); 439 CREATE INDEX message_remote_mailbox_index ON messages(remote_mailbox, remote_id); 440 CREATE INDEX message_type_index ON messages(type); 441 CREATE INDEX message_conversation_id_conversation_position_index ON messages(conversation_id, conversation_position); 442 CREATE INDEX message_fuzzy_ancestor_index ON messages(fuzzy_ancestor); 443 CREATE INDEX message_subject_fuzzy_ancestor_index ON messages(subject, fuzzy_ancestor); 444 CREATE INDEX message_sender_subject_automated_conversation_index ON messages(sender, subject, automated_conversation); 445 CREATE INDEX message_sender_index ON messages(sender); 446 CREATE INDEX message_root_status ON messages(root_status); 447 CREATE TABLE subjects (ROWID INTEGER PRIMARY KEY, subject COLLATE RTRIM, normalized_subject COLLATE RTRIM); 448 CREATE INDEX subject_subject_index ON subjects(subject); 449 CREATE INDEX subject_normalized_subject_index ON subjects(normalized_subject); 450 CREATE TABLE addresses (ROWID INTEGER PRIMARY KEY, address COLLATE NOCASE, comment, UNIQUE(address, comment)); 451 CREATE INDEX addresses_address_index ON addresses(address); 452 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); 453 CREATE INDEX mailboxes_source_index ON mailboxes(source); 454 CREATE TABLE labels (ROWID INTEGER PRIMARY KEY, message_id INTEGER NOT NULL, mailbox_id INTEGER NOT NULL, UNIQUE(message_id, mailbox_id)); 455 CREATE INDEX labels_message_id_mailbox_id_index ON labels(message_id, mailbox_id); 456 CREATE INDEX labels_mailbox_id_index ON labels(mailbox_id); 457 458 explain query plan 459 SELECT messages.ROWID, 460 messages.message_id, 461 messages.remote_id, 462 messages.date_received, 463 messages.date_sent, 464 messages.flags, 465 messages.size, 466 messages.color, 467 messages.date_last_viewed, 468 messages.subject_prefix, 469 subjects.subject, 470 sender.comment, 471 sender.address, 472 NULL, 473 messages.mailbox, 474 messages.original_mailbox, 475 NULL, 476 NULL, 477 messages.type, 478 messages.document_id, 479 sender, 480 NULL, 481 messages.conversation_id, 482 messages.conversation_position, 483 agglabels.labels 484 FROM mailboxes AS mailbox 485 JOIN messages ON mailbox.ROWID = messages.mailbox 486 LEFT OUTER JOIN subjects ON messages.subject = subjects.ROWID 487 LEFT OUTER JOIN addresses AS sender ON messages.sender = sender.ROWID 488 LEFT OUTER JOIN ( 489 SELECT message_id, group_concat(mailbox_id) as labels 490 FROM labels GROUP BY message_id 491 ) AS agglabels ON messages.ROWID = agglabels.message_id 492 WHERE (mailbox.url = 'imap://[email protected]/%5BGmail%5D/All%20Mail') 493 AND (messages.ROWID IN ( 494 SELECT labels.message_id 495 FROM labels JOIN mailboxes ON labels.mailbox_id = mailboxes.ROWID 496 WHERE mailboxes.url = 'imap://[email protected]/INBOX')) 497 AND messages.mailbox in (6,12,18,24,30,36,42,1,7,13,19,25,31,37,43,2,8, 498 14,20,26,32,38,3,9,15,21,27,33,39,4,10,16,22,28, 499 34,40,5,11,17,23,35,41) 500 ORDER BY date_received DESC; 501} {/agglabels USING AUTOMATIC COVERING INDEX/} 502 503# A test case for VIEWs 504# 505do_execsql_test autoindex1-901 { 506 CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z); 507 CREATE TABLE t2(a, b); 508 CREATE VIEW agg2 AS SELECT a, sum(b) AS m FROM t2 GROUP BY a; 509 EXPLAIN QUERY PLAN 510 SELECT t1.z, agg2.m 511 FROM t1 JOIN agg2 ON t1.y=agg2.m 512 WHERE t1.x IN (1,2,3); 513} {/USING AUTOMATIC COVERING INDEX/} 514 515# 2015-04-15: A NULL CollSeq pointer in automatic index creation. 516# 517do_execsql_test autoindex1-920 { 518 CREATE TABLE t920(x); 519 INSERT INTO t920 VALUES(3),(4),(5); 520 SELECT * FROM t920,(SELECT 0 FROM t920),(VALUES(9)) WHERE 5 IN (x); 521} {5 0 9 5 0 9 5 0 9} 522 523finish_test 524