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Overview
| Comment: | Fix a problem with using LIMIT in window-function queries. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL 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 |
Context
|
2018-06-23
| ||
| 19:29 | Fix problems with using window-functions in correlated sub-queries. check-in: 3e23cfc8 user: dan tags: exp-window-functions | |
| 16:26 | Fix a problem with using LIMIT in window-function queries. check-in: c1abd2dd 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: 11d73339 user: dan tags: exp-window-functions | |
Changes
Changes to src/select.c.
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}
assert( p->pEList==pEList );
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pWin ){
int addrGosub = sqlite3VdbeMakeLabel(v);
int iCont = sqlite3VdbeMakeLabel(v);
int regGosub = ++pParse->nMem;
int addr = 0;
sqlite3WindowCodeStep(pParse, p, pWInfo, regGosub, addrGosub);
addr = sqlite3VdbeAddOp0(v, OP_Goto);
sqlite3VdbeResolveLabel(v, addrGosub);
selectInnerLoop(pParse, p, -1, &sSort, &sDistinct, pDest, iCont, 0);
sqlite3VdbeResolveLabel(v, iCont);
sqlite3VdbeAddOp1(v, OP_Return, regGosub);
sqlite3VdbeJumpHere(v, addr);
}else
#endif /* SQLITE_OMIT_WINDOWFUNC */
{
/* Use the standard inner loop. */
selectInnerLoop(pParse, p, -1, &sSort, &sDistinct, pDest,
sqlite3WhereContinueLabel(pWInfo),
sqlite3WhereBreakLabel(pWInfo));
|
> < | | | < |
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
|
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
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} {
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
|