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Overview
Comment:Add test cases to the ONEPASS optimization corruption problem fixed by the previous check-in.
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SHA1: 5c14d447055bb337428eb1fe0a2934abee381829
User & Date: drh 2015-09-28 15:08:28
Context
2015-09-28
17:05
Extra information provided by .wheretrace on input flags to the query planner and on the result of sqlite3WhereOkOnePass(). check-in: c5566bb3 user: drh tags: trunk
15:20
Changes to allow DELETE operations on virtual tables to use the onepass strategy under some circumstances. check-in: e73f919f user: dan tags: vtab-onepass
15:08
Add test cases to the ONEPASS optimization corruption problem fixed by the previous check-in. check-in: 5c14d447 user: drh tags: trunk
14:40
Fix a database corruption bug caused by the ONEPASS optimization added in check-in [8b93cc5937000535]. Bug detected (prior to release) by sqllogictest. Test cases to follow. check-in: 9d057f52 user: drh tags: trunk
Changes
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Changes to test/delete4.test.

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do_execsql_test 3.3 {
  SELECT i FROM t1 ORDER BY i;
} {1 3 5 7}

do_execsql_test 3.4 { 
  PRAGMA integrity_check; 
} {ok}













































finish_test








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do_execsql_test 3.3 {
  SELECT i FROM t1 ORDER BY i;
} {1 3 5 7}

do_execsql_test 3.4 { 
  PRAGMA integrity_check; 
} {ok}

# Between 2015-09-14 and 2015-09-28, the following test cases would result
# in corruption (wrong # of entries in index) due to a bug in the ONEPASS
# optimization.
#
do_execsql_test 4.1 {
  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(col0, col1);
  INSERT INTO "t4" VALUES(14, 'abcde');
  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
  CREATE INDEX idx_t4_3 ON t4 (col0);
  DELETE FROM t4 WHERE col0=69 OR col0>7;
  PRAGMA integrity_check;
} {ok}
do_execsql_test 4.2 {
  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(col0, col1);
  INSERT INTO "t4" VALUES(14, 'abcde');
  CREATE INDEX idx_t4_3 ON t4 (col0);
  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
  DELETE FROM t4 WHERE col0=69 OR col0>7;
  PRAGMA integrity_check;
} {ok}
do_execsql_test 4.11 {
  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(col0, col1, pk PRIMARY KEY) WITHOUT ROWID;
  INSERT INTO t4 VALUES(14, 'abcde','xyzzy');
  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
  CREATE INDEX idx_t4_3 ON t4 (col0);
  DELETE FROM t4 WHERE col0=69 OR col0>7;
  PRAGMA integrity_check;
} {ok}
do_execsql_test 4.12 {
  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(col0, col1, pk PRIMARY KEY) WITHOUT ROWID;
  INSERT INTO t4 VALUES(14, 'abcde','xyzzy');
  CREATE INDEX idx_t4_3 ON t4 (col0);
  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
  DELETE FROM t4 WHERE col0=69 OR col0>7;
  PRAGMA integrity_check;
} {ok}




finish_test