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Further stat4 related tests.

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FossilOrigin-Name: 0a702c4b4c35fdbcb62e3ab88b9e57d7ea0052a8
This commit is contained in:
dan
2013-09-02 18:58:11 +00:00
parent 84f48296fa
commit b49d1047c6
5 changed files with 245 additions and 16 deletions
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24
src/analyze.c
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@@ -468,14 +468,25 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
p->nSample = p->mxSample-1;
}
/* Figure out where in the a[] array the new sample should be inserted. */
/* The "rows less-than" for the rowid column must be greater than that
** for the last sample in the p->a[] array. Otherwise, the samples would
** be out of order. */
#ifdef SQLITE_ENABLE_STAT4
assert( p->nSample==0
|| pNew->anLt[p->nCol-1] > p->a[p->nSample-1].anLt[p->nCol-1] );
#endif
/* Insert the new sample */
pSample = &p->a[p->nSample];
sampleCopy(p, pSample, pNew);
p->nSample++;
#if 0
iSeq = pNew->anLt[p->nCol-1];
for(iPos=p->nSample; iPos>0; iPos--){
if( iSeq>p->a[iPos-1].anLt[p->nCol-1] ) break;
}
/* Insert the new sample */
pSample = &p->a[iPos];
if( iPos!=p->nSample ){
Stat4Sample *pEnd = &p->a[p->nSample];
tRowcnt *anEq = pEnd->anEq;
@@ -486,8 +497,8 @@ static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
pSample->anDLt = anDLt;
pSample->anLt = anLt;
}
p->nSample++;
sampleCopy(p, pSample, pNew);
#endif
/* Zero the first nEqZero entries in the anEq[] array. */
memset(pSample->anEq, 0, sizeof(tRowcnt)*nEqZero);
@@ -584,8 +595,7 @@ static void statPush(
assert( iChng<p->nCol );
if( p->nRow==0 ){
/* anEq[0] is only zero for the very first call to this function. Do
** appropriate initialization */
/* This is the first call to this function. Do initialization. */
for(i=0; i<p->nCol; i++) p->current.anEq[i] = 1;
}else{
/* Second and subsequent calls get processed here */