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Overview
| Comment: | Fix a problem in the xInverse callback for the built-in sum() window function. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | b6563647382634588ebe5c6a3c35c65a |
| User & Date: | dan 2018-07-02 17:45:59 |
Context
|
2018-07-03
| ||
| 20:17 | Test that a race condition can cause a "BEGIN EXCLUSIVE" to return SQLITE_BUSY_SNAPSHOT in wal mode. check-in: 5a12db75 user: dan tags: trunk | |
|
2018-07-02
| ||
| 17:45 | Fix a problem in the xInverse callback for the built-in sum() window function. check-in: b6563647 user: dan tags: trunk | |
| 17:14 | Fix a segfault caused by having identical window functions in the select-list and ORDER BY clause of a SELECT statement. check-in: 693b4350 user: dan tags: trunk | |
Changes
Changes to src/func.c.
1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 |
if( type==SQLITE_INTEGER ){
i64 v = sqlite3_value_int64(argv[0]);
p->rSum -= v;
if( (p->approx|p->overflow)==0 && sqlite3AddInt64(&p->iSum, -1*v) ){
p->overflow = 1;
}
}else{
p->rSum += sqlite3_value_double(argv[0]);
p->approx = 1;
}
}
}
#else
# define sumInverse 0
#endif /* SQLITE_OMIT_WINDOWFUNC */
|
| |
1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 |
if( type==SQLITE_INTEGER ){
i64 v = sqlite3_value_int64(argv[0]);
p->rSum -= v;
if( (p->approx|p->overflow)==0 && sqlite3AddInt64(&p->iSum, -1*v) ){
p->overflow = 1;
}
}else{
p->rSum -= sqlite3_value_double(argv[0]);
p->approx = 1;
}
}
}
#else
# define sumInverse 0
#endif /* SQLITE_OMIT_WINDOWFUNC */
|
Changes to test/window6.test.
187 188 189 190 191 192 193 194 195 |
SELECT "counter", "value", RANK() OVER w AS "rank"
FROM "sample"
WINDOW w AS (PARTITION BY "counter" ORDER BY "value" DESC)
ORDER BY "counter", RANK() OVER w
} {
1 20.0 1 1 10.0 2 2 3.0 1 2 1.0 2 3 100.0 1
}
finish_test
|
> > > > > > > > > > > > > > > > > > |
187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 |
SELECT "counter", "value", RANK() OVER w AS "rank"
FROM "sample"
WINDOW w AS (PARTITION BY "counter" ORDER BY "value" DESC)
ORDER BY "counter", RANK() OVER w
} {
1 20.0 1 1 10.0 2 2 3.0 1 2 1.0 2 3 100.0 1
}
do_execsql_test 8.2 {
SELECT "counter", "value", SUM("value") OVER
(ORDER BY "id" ROWS 2 PRECEDING)
FROM "sample"
ORDER BY "id"
} {
1 10.0 10.0 1 20.0 30.0 2 1.0 31.0 2 3.0 24.0 3 100.0 104.0
}
do_execsql_test 8.3 {
SELECT SUM("value") OVER
(ORDER BY "id" ROWS BETWEEN 2 PRECEDING AND CURRENT ROW)
FROM "sample"
ORDER BY "id"
} {
10.0 30.0 31.0 24.0 104.0
}
finish_test
|