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Overview
| Comment: | Fix incorrect testcase labels on two cases in join5.test. No changes to code. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
4661ac81c9589b06a07df8b7931fbd0a |
| User & Date: | drh 2018-03-20 19:02:03 |
Context
|
2018-03-21
| ||
| 19:25 | Add the optfuzz.c program for verifying the query planner using a fuzzer. This is an initial code check-in. (check-in: 3fb21251 user: drh tags: trunk) | |
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2018-03-20
| ||
| 21:16 | If terms of the WHERE clause require that the right table in a LEFT JOIN not be a null row, then simplify the LEFT JOIN into an ordinary JOIN. (check-in: 5b7abecc user: drh tags: join-strength-reduction) | |
| 19:02 | Fix incorrect testcase labels on two cases in join5.test. No changes to code. (check-in: 4661ac81 user: drh tags: trunk) | |
| 18:08 | Improvements to the HAVING-to-WHERE optimization. The code uses less space and less CPU, and there is now ".selecttrace" output. (check-in: 5ad668d4 user: drh tags: trunk) | |
Changes
Changes to test/join5.test.
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INSERT INTO x3 VALUES('c', NULL);
SELECT * FROM x1 LEFT JOIN x2 JOIN x3 WHERE x3.d = x2.b;
} {}
# Ticket https://www.sqlite.org/src/tktview/c2a19d81652f40568c770c43 on
# 2015-08-20. LEFT JOIN and the push-down optimization.
#
do_execsql_test join6-4.1 {
SELECT *
FROM (
SELECT 'apple' fruit
UNION ALL SELECT 'banana'
) a
JOIN (
SELECT 'apple' fruit
UNION ALL SELECT 'banana'
) b ON a.fruit=b.fruit
LEFT JOIN (
SELECT 1 isyellow
) c ON b.fruit='banana';
} {apple apple {} banana banana 1}
do_execsql_test join6-4.2 {
SELECT *
FROM (SELECT 'apple' fruit UNION ALL SELECT 'banana')
LEFT JOIN (SELECT 1) ON fruit='banana';
} {apple {} banana 1}
#-------------------------------------------------------------------------
do_execsql_test 5.0 {
|
| | |
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 |
INSERT INTO x3 VALUES('c', NULL);
SELECT * FROM x1 LEFT JOIN x2 JOIN x3 WHERE x3.d = x2.b;
} {}
# Ticket https://www.sqlite.org/src/tktview/c2a19d81652f40568c770c43 on
# 2015-08-20. LEFT JOIN and the push-down optimization.
#
do_execsql_test join5-4.1 {
SELECT *
FROM (
SELECT 'apple' fruit
UNION ALL SELECT 'banana'
) a
JOIN (
SELECT 'apple' fruit
UNION ALL SELECT 'banana'
) b ON a.fruit=b.fruit
LEFT JOIN (
SELECT 1 isyellow
) c ON b.fruit='banana';
} {apple apple {} banana banana 1}
do_execsql_test join5-4.2 {
SELECT *
FROM (SELECT 'apple' fruit UNION ALL SELECT 'banana')
LEFT JOIN (SELECT 1) ON fruit='banana';
} {apple {} banana 1}
#-------------------------------------------------------------------------
do_execsql_test 5.0 {
|