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Overview
| Comment: | Remove some bad assert() statements from the implementations of window functions percent_rank() and cume_dist(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
443f0c286f1659937fd61b4ef2de17d0 |
| User & Date: | dan 2018-07-06 13:25:02 |
Context
|
2018-07-06
| ||
| 13:48 | Prevent "UNBOUNDED FOLLOWING" from being used as the starting boundary of a window-frame. And "UNBOUNDED PRECEDING" from being used as the ending boundary. check-in: e51fdf66 user: dan tags: trunk | |
| 13:25 | Remove some bad assert() statements from the implementations of window functions percent_rank() and cume_dist(). check-in: 443f0c28 user: dan tags: trunk | |
| 07:42 | Return an error if DISTINCT is used with a window-function (e.g. "count(DISTINCT <expr>) OVER (...)"). check-in: d59bcc8e user: dan tags: trunk | |
Changes
Changes to src/vdbe.h.
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void sqlite3VdbeResolveLabel(Vdbe*, int);
#ifdef SQLITE_COVERAGE_TEST
int sqlite3VdbeLabelHasBeenResolved(Vdbe*,int);
#endif
int sqlite3VdbeCurrentAddr(Vdbe*);
#ifdef SQLITE_DEBUG
int sqlite3VdbeAssertMayAbort(Vdbe *, int);
int sqlite3VdbeAssertAggContext(sqlite3_context*);
#endif
void sqlite3VdbeResetStepResult(Vdbe*);
void sqlite3VdbeRewind(Vdbe*);
int sqlite3VdbeReset(Vdbe*);
void sqlite3VdbeSetNumCols(Vdbe*,int);
int sqlite3VdbeSetColName(Vdbe*, int, int, const char *, void(*)(void*));
void sqlite3VdbeCountChanges(Vdbe*);
|
< |
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void sqlite3VdbeResolveLabel(Vdbe*, int); #ifdef SQLITE_COVERAGE_TEST int sqlite3VdbeLabelHasBeenResolved(Vdbe*,int); #endif int sqlite3VdbeCurrentAddr(Vdbe*); #ifdef SQLITE_DEBUG int sqlite3VdbeAssertMayAbort(Vdbe *, int); #endif void sqlite3VdbeResetStepResult(Vdbe*); void sqlite3VdbeRewind(Vdbe*); int sqlite3VdbeReset(Vdbe*); void sqlite3VdbeSetNumCols(Vdbe*,int); int sqlite3VdbeSetColName(Vdbe*, int, int, const char *, void(*)(void*)); void sqlite3VdbeCountChanges(Vdbe*); |
Changes to src/vdbeapi.c.
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if( (p->pMem->flags & MEM_Agg)==0 ){
return createAggContext(p, nByte);
}else{
return (void*)p->pMem->z;
}
}
/*
** This function is only used within assert() statements to check that the
** aggregate context has already been allocated. i.e.:
**
** assert( sqlite3VdbeAssertAggContext(p) );
*/
#ifdef SQLITE_DEBUG
int sqlite3VdbeAssertAggContext(sqlite3_context *p){
return ((p->pMem->flags & MEM_Agg)!=0);
}
#endif /* SQLITE_DEBUG */
/*
** Return the auxiliary data pointer, if any, for the iArg'th argument to
** the user-function defined by pCtx.
**
** The left-most argument is 0.
**
** Undocumented behavior: If iArg is negative then access a cache of
|
< < < < < < < < < < < < |
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if( (p->pMem->flags & MEM_Agg)==0 ){
return createAggContext(p, nByte);
}else{
return (void*)p->pMem->z;
}
}
/*
** Return the auxiliary data pointer, if any, for the iArg'th argument to
** the user-function defined by pCtx.
**
** The left-most argument is 0.
**
** Undocumented behavior: If iArg is negative then access a cache of
|
Changes to src/window.c.
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sqlite3_context *pCtx,
int nArg,
sqlite3_value **apArg
){
struct CallCount *p;
assert( nArg==1 );
assert( sqlite3VdbeAssertAggContext(pCtx) );
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( ALWAYS(p) ){
if( p->nTotal==0 ){
p->nTotal = sqlite3_value_int64(apArg[0]);
}
p->nStep++;
if( p->nValue==0 ){
p->nValue = p->nStep;
}
................................................................................
sqlite3_context *pCtx,
int nArg,
sqlite3_value **apArg
){
struct CallCount *p;
assert( nArg==1 );
assert( sqlite3VdbeAssertAggContext(pCtx) );
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( ALWAYS(p) ){
if( p->nTotal==0 ){
p->nTotal = sqlite3_value_int64(apArg[0]);
}
p->nStep++;
}
}
static void cume_distInvFunc(
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sqlite3_context *pCtx,
int nArg,
sqlite3_value **apArg
){
struct CallCount *p;
assert( nArg==1 );
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p ){
if( p->nTotal==0 ){
p->nTotal = sqlite3_value_int64(apArg[0]);
}
p->nStep++;
if( p->nValue==0 ){
p->nValue = p->nStep;
}
................................................................................
sqlite3_context *pCtx,
int nArg,
sqlite3_value **apArg
){
struct CallCount *p;
assert( nArg==1 );
p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p));
if( p ){
if( p->nTotal==0 ){
p->nTotal = sqlite3_value_int64(apArg[0]);
}
p->nStep++;
}
}
static void cume_distInvFunc(
|
Changes to test/window4.tcl.
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execsql_test 9.4 {
SELECT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
}
execsql_test 9.5 {
SELECT DISTINCT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
}
finish_test
|
> > > > > > > > |
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execsql_test 9.4 {
SELECT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
}
execsql_test 9.5 {
SELECT DISTINCT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
}
execsql_float_test 9.6 {
SELECT percent_rank() OVER () FROM t1
}
execsql_float_test 9.7 {
SELECT cume_dist() OVER () FROM t1
}
finish_test
|
Changes to test/window4.test.
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SELECT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
} {1 1 1 1 1 1 4 4 4 4 6 6 7 7}
do_execsql_test 9.5 {
SELECT DISTINCT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
} {1 1 4 4 6 6 7 7}
finish_test
|
> > > > > > > > > > > > > > > > |
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SELECT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
} {1 1 1 1 1 1 4 4 4 4 6 6 7 7}
do_execsql_test 9.5 {
SELECT DISTINCT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
} {1 1 4 4 6 6 7 7}
do_test 9.6 {
set myres {}
foreach r [db eval {SELECT percent_rank() OVER () FROM t1}] {
lappend myres [format %.2f [set r]]
}
set myres
} {0.00 0.00 0.00}
do_test 9.7 {
set myres {}
foreach r [db eval {SELECT cume_dist() OVER () FROM t1}] {
lappend myres [format %.2f [set r]]
}
set myres
} {1.00 1.00 1.00}
finish_test
|
Changes to test/windowfault.test.
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FROM t1
WINDOW win1 AS (ORDER BY a ROWS BETWEEN CURRENT ROW AND 1 FOLLOWING),
win2 AS (ORDER BY a)
}
} -test {
faultsim_test_result {0 {5 1 9 5 9 9}}
}
finish_test
|
> > > > > > > > > > |
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FROM t1
WINDOW win1 AS (ORDER BY a ROWS BETWEEN CURRENT ROW AND 1 FOLLOWING),
win2 AS (ORDER BY a)
}
} -test {
faultsim_test_result {0 {5 1 9 5 9 9}}
}
do_faultsim_test 6 -faults oom-* -prep {
faultsim_restore_and_reopen
} -body {
execsql {
SELECT percent_rank() OVER (), cume_dist() OVER () FROM t1
}
} -test {
faultsim_test_result {0 {0.0 1.0 0.0 1.0 0.0 1.0}}
}
finish_test
|