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Overview
| Comment: | Fix a problem with using LIMIT in window-function queries. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | exp-window-functions |
| Files: | files | file ages | folders |
| SHA3-256: |
c1abd2dda4154cb573bdf627cdef794d |
| User & Date: | dan 2018-06-23 16:26:20.289 |
Context
|
2018-06-23
| ||
| 19:29 | Fix problems with using window-functions in correlated sub-queries. (check-in: 3e23cfc813 user: dan tags: exp-window-functions) | |
| 16:26 | Fix a problem with using LIMIT in window-function queries. (check-in: c1abd2dda4 user: dan tags: exp-window-functions) | |
| 07:59 | Fix a problem with using a window-function SELECT as a FROM clause sub-query in some circumstances. (check-in: 11d733396f user: dan tags: exp-window-functions) | |
Changes
Changes to src/select.c.
| ︙ | ︙ | |||
5929 5930 5931 5932 5933 5934 5935 5936 |
}
assert( p->pEList==pEList );
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pWin ){
int addrGosub = sqlite3VdbeMakeLabel(v);
int iCont = sqlite3VdbeMakeLabel(v);
int regGosub = ++pParse->nMem;
| > < | | | < | 5929 5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941 5942 5943 5944 5945 5946 5947 5948 5949 5950 5951 5952 5953 |
}
assert( p->pEList==pEList );
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pWin ){
int addrGosub = sqlite3VdbeMakeLabel(v);
int iCont = sqlite3VdbeMakeLabel(v);
int iBreak = sqlite3VdbeMakeLabel(v);
int regGosub = ++pParse->nMem;
sqlite3WindowCodeStep(pParse, p, pWInfo, regGosub, addrGosub);
sqlite3VdbeAddOp2(v, OP_Goto, 0, iBreak);
sqlite3VdbeResolveLabel(v, addrGosub);
selectInnerLoop(pParse, p, -1, &sSort, &sDistinct, pDest, iCont, iBreak);
sqlite3VdbeResolveLabel(v, iCont);
sqlite3VdbeAddOp1(v, OP_Return, regGosub);
sqlite3VdbeResolveLabel(v, iBreak);
}else
#endif /* SQLITE_OMIT_WINDOWFUNC */
{
/* Use the standard inner loop. */
selectInnerLoop(pParse, p, -1, &sSort, &sDistinct, pDest,
sqlite3WhereContinueLabel(pWInfo),
sqlite3WhereBreakLabel(pWInfo));
|
| ︙ | ︙ |
Changes to test/window1.test.
| ︙ | ︙ | |||
398 399 400 401 402 403 404 405 406 407 |
} {
Horace East 1
Charles North 45
Alice North 34
Elizabeth South 99
Grant South 23
}
finish_test
| > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 |
} {
Horace East 1
Charles North 45
Alice North 34
Elizabeth South 99
Grant South 23
}
do_execsql_test 10.2 {
SELECT emp, region, sum(total) OVER win FROM sales
WINDOW win AS (PARTITION BY region ORDER BY total)
} {
Horace East 1
Brad North 22
Alice North 56
Charles North 101
Darrell South 8
Frank South 30
Grant South 53
Elizabeth South 152
}
do_execsql_test 10.3 {
SELECT emp, region, sum(total) OVER win FROM sales
WINDOW win AS (PARTITION BY region ORDER BY total)
LIMIT 5
} {
Horace East 1
Brad North 22
Alice North 56
Charles North 101
Darrell South 8
}
do_execsql_test 10.4 {
SELECT emp, region, sum(total) OVER win FROM sales
WINDOW win AS (PARTITION BY region ORDER BY total)
LIMIT 5 OFFSET 2
} {
Alice North 56
Charles North 101
Darrell South 8
Frank South 30
Grant South 53
}
finish_test
|