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Overview
| Comment: | Support other frame types that use "<expr> PRECEDING" or "<expr> FOLLOWING" as start or end conditions. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | exp-window-functions |
| Files: | files | file ages | folders |
| SHA3-256: |
ec7b648c7f0ee266653561bbb9daa45b |
| User & Date: | dan 2018-05-24 17:49:14 |
Context
|
2018-05-24
| ||
| 21:10 | Allow "<expr> PRECEDING" to be used to specify the end of a window frame. (check-in: 7b709a98 user: dan tags: exp-window-functions) | |
| 17:49 | Support other frame types that use "<expr> PRECEDING" or "<expr> FOLLOWING" as start or end conditions. (check-in: ec7b648c user: dan tags: exp-window-functions) | |
|
2018-05-23
| ||
| 20:55 | Add support for "ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING" window frames. (check-in: 3a203660 user: dan tags: exp-window-functions) | |
Changes
Changes to src/window.c.
89 90 91 92 93 94 95 96 97 98 99 100 101 102 ... 118 119 120 121 122 123 124 125 126 127 128 129 130 131 ... 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 ... 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 ... 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 ... 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 |
sqlite3VdbeAddOp2(v, OP_Integer, 0, regZero);
sqlite3VdbeAddOp2(v, OP_MustBeInt, reg, sqlite3VdbeCurrentAddr(v)+2);
sqlite3VdbeAddOp3(v, OP_Ge, regZero, sqlite3VdbeCurrentAddr(v)+2, reg);
sqlite3VdbeAddOp2(v, OP_Halt, SQLITE_ERROR, OE_Abort);
sqlite3VdbeAppendP4(v, (void*)azErr[bEnd], P4_STATIC);
}
static void windowCodeRowExprStep(
Parse *pParse,
Select *p,
WhereInfo *pWInfo,
int regGosub,
int addrGosub
){
................................................................................
int csrFollow = pParse->nTab++;
int regPrec; /* Value of <expr> PRECEDING */
int regFollow; /* Value of <expr> FOLLOWING */
int addrNext;
int addrGoto;
int addrIfPos1;
int addrIfPos2;
pParse->nMem += nSub + 2;
/* Allocate register and label for the "flush_partition" sub-routine. */
regFlushPart = ++pParse->nMem;
addrFlushPart = sqlite3VdbeMakeLabel(v);
addrDone = sqlite3VdbeMakeLabel(v);
................................................................................
/* flush_partition: */
sqlite3VdbeResolveLabel(v, addrFlushPart);
sqlite3VdbeAddOp2(v, OP_Once, 0, sqlite3VdbeCurrentAddr(v)+3);
sqlite3VdbeAddOp2(v, OP_OpenDup, csrPrec, pMWin->iEphCsr);
sqlite3VdbeAddOp2(v, OP_OpenDup, csrFollow, pMWin->iEphCsr);
sqlite3ExprCode(pParse, pMWin->pStart, regPrec);
sqlite3ExprCode(pParse, pMWin->pEnd, regFollow);
sqlite3VdbeAddOp2(v, OP_Null, 0, pMWin->regResult);
sqlite3VdbeAddOp2(v, OP_Null, 0, pMWin->regAccum);
/* If either regPrec or regFollow are not non-negative integers, throw an
** exception. */
windowCheckFrameValue(pParse, regPrec, 0);
windowCheckFrameValue(pParse, regFollow, 1);
sqlite3VdbeAddOp2(v, OP_Rewind, pMWin->iEphCsr, addrDone);
sqlite3VdbeAddOp2(v, OP_Rewind, csrPrec, addrDone);
sqlite3VdbeChangeP5(v, 1);
sqlite3VdbeAddOp2(v, OP_Rewind, csrFollow, addrDone);
sqlite3VdbeChangeP5(v, 1);
/* Invoke AggStep function for each window function using the row that
................................................................................
for(i=0; i<pWin->nArg; i++){
sqlite3VdbeAddOp3(v, OP_Column, csrFollow, pWin->iArgCol+i, reg+i);
}
sqlite3VdbeAddOp3(v, OP_AggStep0, 0, reg, pWin->regAccum);
sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
sqlite3VdbeChangeP5(v, (u8)pWin->nArg);
}
sqlite3VdbeJumpHere(v, addrNext+1);
addrIfPos1 = sqlite3VdbeAddOp3(v, OP_IfPos, regFollow, 0 , 1);
for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
sqlite3VdbeAddOp3(v,
OP_AggFinal, pWin->regAccum, pWin->nArg, pWin->regResult
);
sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
}
sqlite3VdbeAddOp2(v, OP_Gosub, regGosub, addrGosub);
sqlite3VdbeAddOp2(v, OP_Next, pMWin->iEphCsr, sqlite3VdbeCurrentAddr(v)+2);
sqlite3VdbeAddOp2(v, OP_Goto, 0, addrDone);
addrIfPos2 = sqlite3VdbeAddOp3(v, OP_IfPos, regPrec, 0 , 1);
sqlite3VdbeAddOp2(v, OP_Next, csrPrec, sqlite3VdbeCurrentAddr(v)+1);
for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
int i;
for(i=0; i<pWin->nArg; i++){
sqlite3VdbeAddOp3(v, OP_Column, csrPrec, pWin->iArgCol+i, reg+i);
}
sqlite3VdbeAddOp3(v, OP_AggStep0, 1, reg, pWin->regAccum);
sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
sqlite3VdbeChangeP5(v, (u8)pWin->nArg);
}
sqlite3VdbeJumpHere(v, addrIfPos2);
sqlite3VdbeJumpHere(v, addrIfPos1);
sqlite3VdbeAddOp2(v, OP_Goto, 0, addrNext);
/* flush_partition_done: */
sqlite3VdbeResolveLabel(v, addrDone);
sqlite3VdbeAddOp1(v, OP_ResetSorter, pMWin->iEphCsr);
sqlite3VdbeAddOp1(v, OP_Return, regFlushPart);
................................................................................
**
** ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
** ROWS BETWEEN CURRENT ROW AND CURRENT ROW
** ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
**
**========================================================================
**
** ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING
**
** ...
** if( new partition ){
** Gosub flush_partition
** }
** Insert (record in eph-table)
** sqlite3WhereEnd()
** Gosub flush_partition
**
** flush_partition:
** OpenDup (csr -> csr2)
** OpenDup (csr -> csr3)
** regPrec = <expr1> // PRECEDING expression
** regFollow = <expr2> // FOLLOWING expression
** if( regPrec<0 || regFollow<0 ) throw exception!
** Rewind (csr,csr2,csr3) // if EOF goto flush_partition_done
** Aggstep (csr3)
** Next(csr3) // if EOF fall-through
** if( (regFollow--)<=0 ){
** AggFinal (xValue)
** Gosub addrGosub
** Next(csr) // if EOF goto flush_partition_done
** if( (regPrec--)<=0 ){
** AggStep (csr2, xInverse)
** Next(csr2)
** }
** }
** flush_partition_done:
** Close (csr2)
** Close (csr3)
** ResetSorter (csr)
** Return
**
** ROWS BETWEEN <expr> PRECEDING AND CURRENT ROW
** ROWS BETWEEN CURRENT ROW AND <expr> FOLLOWING
** ROWS BETWEEN <expr> PRECEDING AND UNBOUNDED FOLLOWING
** ROWS BETWEEN UNBOUNDED PRECEDING AND <expr> FOLLOWING
**
** These are similar to the above. For "CURRENT ROW", intialize the
** register to 0. For "UNBOUNDED ..." to infinity.
**
** ROWS BETWEEN <expr> PRECEDING AND <expr> PRECEDING
**
** Replace the bit after "Rewind" in the above with:
**
** if( (regFollow--)<=0 ){
** AggStep (csr3)
** Next (csr3)
................................................................................
int regGosub,
int addrGosub,
int *pbLoop
){
Window *pMWin = p->pWin;
if( pMWin->eType==TK_ROWS
&& pMWin->eStart==TK_PRECEDING
&& pMWin->eEnd==TK_FOLLOWING
){
*pbLoop = 0;
windowCodeRowExprStep(pParse, p, pWInfo, regGosub, addrGosub);
return;
}
*pbLoop = 1;
windowCodeDefaultStep(pParse, p, pWInfo, regGosub, addrGosub);
}
|
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sqlite3VdbeAddOp2(v, OP_Integer, 0, regZero); sqlite3VdbeAddOp2(v, OP_MustBeInt, reg, sqlite3VdbeCurrentAddr(v)+2); sqlite3VdbeAddOp3(v, OP_Ge, regZero, sqlite3VdbeCurrentAddr(v)+2, reg); sqlite3VdbeAddOp2(v, OP_Halt, SQLITE_ERROR, OE_Abort); sqlite3VdbeAppendP4(v, (void*)azErr[bEnd], P4_STATIC); } /* ** ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING ** ** ... ** if( new partition ){ ** Gosub flush_partition ** } ** Insert (record in eph-table) ** sqlite3WhereEnd() ** Gosub flush_partition ** ** flush_partition: ** OpenDup (csr -> csr2) ** OpenDup (csr -> csr3) ** regPrec = <expr1> // PRECEDING expression ** regFollow = <expr2> // FOLLOWING expression ** if( regPrec<0 || regFollow<0 ) throw exception! ** Rewind (csr,csr2,csr3) // if EOF goto flush_partition_done ** Aggstep (csr3) ** Next(csr3) // if EOF fall-through ** if( (regFollow--)<=0 ){ ** AggFinal (xValue) ** Gosub addrGosub ** Next(csr) // if EOF goto flush_partition_done ** if( (regPrec--)<=0 ){ ** AggStep (csr2, xInverse) ** Next(csr2) ** } ** } ** flush_partition_done: ** Close (csr2) ** Close (csr3) ** ResetSorter (csr) ** Return ** ** ROWS BETWEEN <expr> PRECEDING AND CURRENT ROW ** ROWS BETWEEN CURRENT ROW AND <expr> FOLLOWING ** ROWS BETWEEN <expr> PRECEDING AND UNBOUNDED FOLLOWING ** ROWS BETWEEN UNBOUNDED PRECEDING AND <expr> FOLLOWING ** ** These are similar to the above. For "CURRENT ROW", intialize the ** register to 0. For "UNBOUNDED ..." to infinity. ** */ static void windowCodeRowExprStep( Parse *pParse, Select *p, WhereInfo *pWInfo, int regGosub, int addrGosub ){ ................................................................................ int csrFollow = pParse->nTab++; int regPrec; /* Value of <expr> PRECEDING */ int regFollow; /* Value of <expr> FOLLOWING */ int addrNext; int addrGoto; int addrIfPos1; int addrIfPos2; assert( pMWin->eStart==TK_PRECEDING || pMWin->eStart==TK_CURRENT || pMWin->eStart==TK_UNBOUNDED ); assert( pMWin->eEnd==TK_FOLLOWING || pMWin->eEnd==TK_CURRENT || pMWin->eEnd==TK_UNBOUNDED ); pParse->nMem += nSub + 2; /* Allocate register and label for the "flush_partition" sub-routine. */ regFlushPart = ++pParse->nMem; addrFlushPart = sqlite3VdbeMakeLabel(v); addrDone = sqlite3VdbeMakeLabel(v); ................................................................................ /* flush_partition: */ sqlite3VdbeResolveLabel(v, addrFlushPart); sqlite3VdbeAddOp2(v, OP_Once, 0, sqlite3VdbeCurrentAddr(v)+3); sqlite3VdbeAddOp2(v, OP_OpenDup, csrPrec, pMWin->iEphCsr); sqlite3VdbeAddOp2(v, OP_OpenDup, csrFollow, pMWin->iEphCsr); /* If either regPrec or regFollow are not non-negative integers, throw ** an exception. */ if( pMWin->pStart ){ assert( pMWin->eStart==TK_PRECEDING ); sqlite3ExprCode(pParse, pMWin->pStart, regPrec); windowCheckFrameValue(pParse, regPrec, 0); } if( pMWin->pEnd ){ assert( pMWin->eEnd==TK_FOLLOWING ); sqlite3ExprCode(pParse, pMWin->pEnd, regFollow); windowCheckFrameValue(pParse, regFollow, 1); } sqlite3VdbeAddOp2(v, OP_Null, 0, pMWin->regResult); sqlite3VdbeAddOp2(v, OP_Null, 0, pMWin->regAccum); sqlite3VdbeAddOp2(v, OP_Rewind, pMWin->iEphCsr, addrDone); sqlite3VdbeAddOp2(v, OP_Rewind, csrPrec, addrDone); sqlite3VdbeChangeP5(v, 1); sqlite3VdbeAddOp2(v, OP_Rewind, csrFollow, addrDone); sqlite3VdbeChangeP5(v, 1); /* Invoke AggStep function for each window function using the row that ................................................................................ for(i=0; i<pWin->nArg; i++){ sqlite3VdbeAddOp3(v, OP_Column, csrFollow, pWin->iArgCol+i, reg+i); } sqlite3VdbeAddOp3(v, OP_AggStep0, 0, reg, pWin->regAccum); sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF); sqlite3VdbeChangeP5(v, (u8)pWin->nArg); } if( pMWin->eEnd==TK_UNBOUNDED ){ sqlite3VdbeAddOp2(v, OP_Goto, 0, addrNext); sqlite3VdbeJumpHere(v, addrNext+1); addrNext = sqlite3VdbeCurrentAddr(v); }else{ sqlite3VdbeJumpHere(v, addrNext+1); } if( pMWin->eEnd==TK_FOLLOWING ){ addrIfPos1 = sqlite3VdbeAddOp3(v, OP_IfPos, regFollow, 0 , 1); } for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ sqlite3VdbeAddOp3(v, OP_AggFinal, pWin->regAccum, pWin->nArg, pWin->regResult ); sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF); } sqlite3VdbeAddOp2(v, OP_Gosub, regGosub, addrGosub); sqlite3VdbeAddOp2(v, OP_Next, pMWin->iEphCsr, sqlite3VdbeCurrentAddr(v)+2); sqlite3VdbeAddOp2(v, OP_Goto, 0, addrDone); if( pMWin->eStart==TK_CURRENT || pMWin->eStart==TK_PRECEDING ){ if( pMWin->eStart==TK_PRECEDING ){ addrIfPos2 = sqlite3VdbeAddOp3(v, OP_IfPos, regPrec, 0 , 1); } sqlite3VdbeAddOp2(v, OP_Next, csrPrec, sqlite3VdbeCurrentAddr(v)+1); for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ int i; for(i=0; i<pWin->nArg; i++){ sqlite3VdbeAddOp3(v, OP_Column, csrPrec, pWin->iArgCol+i, reg+i); } sqlite3VdbeAddOp3(v, OP_AggStep0, 1, reg, pWin->regAccum); sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF); sqlite3VdbeChangeP5(v, (u8)pWin->nArg); } if( pMWin->eStart==TK_PRECEDING ){ sqlite3VdbeJumpHere(v, addrIfPos2); } } if( pMWin->eEnd==TK_FOLLOWING ){ sqlite3VdbeJumpHere(v, addrIfPos1); } sqlite3VdbeAddOp2(v, OP_Goto, 0, addrNext); /* flush_partition_done: */ sqlite3VdbeResolveLabel(v, addrDone); sqlite3VdbeAddOp1(v, OP_ResetSorter, pMWin->iEphCsr); sqlite3VdbeAddOp1(v, OP_Return, regFlushPart); ................................................................................ ** ** ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ** ROWS BETWEEN CURRENT ROW AND CURRENT ROW ** ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING ** **======================================================================== ** ** ROWS BETWEEN <expr> PRECEDING AND <expr> PRECEDING ** ** Replace the bit after "Rewind" in the above with: ** ** if( (regFollow--)<=0 ){ ** AggStep (csr3) ** Next (csr3) ................................................................................ int regGosub, int addrGosub, int *pbLoop ){ Window *pMWin = p->pWin; if( pMWin->eType==TK_ROWS && (pMWin->eStart==TK_PRECEDING || pMWin->eEnd==TK_FOLLOWING) && (pMWin->eStart!=TK_FOLLOWING || pMWin->eEnd==TK_PRECEDING) ){ *pbLoop = 0; windowCodeRowExprStep(pParse, p, pWInfo, regGosub, addrGosub); return; } *pbLoop = 1; windowCodeDefaultStep(pParse, p, pWInfo, regGosub, addrGosub); } |
Changes to test/window2.tcl.
179 180 181 182 183 184 185 186 187 188 189 190 191 192 |
execsql_test 2.7 {
SELECT a, sum(d) OVER (
PARTITION BY b
ORDER BY d
ROWS BETWEEN 0 PRECEDING AND 0 FOLLOWING
) FROM t1
}
puts $::fd finish_test
==========
execsql_test 3.1 {
SELECT a, sum(d) OVER (
PARTITION BY b ORDER BY d
|
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 |
execsql_test 2.7 {
SELECT a, sum(d) OVER (
PARTITION BY b
ORDER BY d
ROWS BETWEEN 0 PRECEDING AND 0 FOLLOWING
) FROM t1
}
execsql_test 2.8 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
) FROM t1
}
execsql_test 2.9 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN UNBOUNDED PRECEDING AND 2 FOLLOWING
) FROM t1
}
execsql_test 2.10 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
) FROM t1
}
execsql_test 2.11 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN 2 PRECEDING AND CURRENT ROW
) FROM t1
}
execsql_test 2.13 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN 2 PRECEDING AND UNBOUNDED FOLLOWING
) FROM t1
}
==========
puts $::fd finish_test
==========
execsql_test 3.1 {
SELECT a, sum(d) OVER (
PARTITION BY b ORDER BY d
|
Changes to test/window2.test.
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 |
SELECT a, sum(d) OVER (
PARTITION BY b
ORDER BY d
ROWS BETWEEN 0 PRECEDING AND 0 FOLLOWING
) FROM t1
} {2 2 4 4 6 6 1 1 3 3 5 5}
finish_test
#==========================================================================
do_execsql_test 2.1 {
SELECT a, sum(d) OVER (
PARTITION BY b ORDER BY d
RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
) FROM t1
} {2 12 4 10 6 6 1 9 3 8 5 5}
do_execsql_test 2.2 {
SELECT a, sum(d) OVER (
ORDER BY b
RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
) FROM t1
} {2 21 4 21 6 21 1 9 3 9 5 9}
do_execsql_test 2.3 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
) FROM t1
} {1 21 2 21 3 21 4 21 5 21 6 21}
do_execsql_test 2.4 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
) FROM t1
} {1 3 2 6 3 9 4 12 5 15 6 11}
do_execsql_test 2.5 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING
) FROM t1
} {1 {} 2 1 3 2 4 3 5 4 6 5}
finish_test
|
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | < < < < < < < < < < < < < < |
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 |
SELECT a, sum(d) OVER (
PARTITION BY b
ORDER BY d
ROWS BETWEEN 0 PRECEDING AND 0 FOLLOWING
) FROM t1
} {2 2 4 4 6 6 1 1 3 3 5 5}
do_execsql_test 2.8 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
) FROM t1
} {1 6 2 9 3 12 4 15 5 11 6 6}
do_execsql_test 2.9 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN UNBOUNDED PRECEDING AND 2 FOLLOWING
) FROM t1
} {1 6 2 10 3 15 4 21 5 21 6 21}
do_execsql_test 2.10 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
) FROM t1
} {1 6 2 9 3 12 4 15 5 11 6 6}
do_execsql_test 2.11 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN 2 PRECEDING AND CURRENT ROW
) FROM t1
} {1 1 2 3 3 6 4 9 5 12 6 15}
do_execsql_test 2.13 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN 2 PRECEDING AND UNBOUNDED FOLLOWING
) FROM t1
} {1 21 2 21 3 21 4 20 5 18 6 15}
#==========================================================================
finish_test
#==========================================================================
do_execsql_test 3.1 {
SELECT a, sum(d) OVER (
PARTITION BY b ORDER BY d
RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
) FROM t1
} {2 12 4 10 6 6 1 9 3 8 5 5}
do_execsql_test 3.2 {
SELECT a, sum(d) OVER (
ORDER BY b
RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
) FROM t1
} {2 21 4 21 6 21 1 9 3 9 5 9}
do_execsql_test 3.3 {
SELECT a, sum(d) OVER (
ORDER BY d
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
) FROM t1
} {1 21 2 21 3 21 4 21 5 21 6 21}
finish_test
|