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In the sessions module, avoid recording a change if an UPDATE statement

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overwrites a column with REAL affinity containing an integer value with the same value.

FossilOrigin-Name: b861328ab9ceec6926d97658c3606e6ae9ad39bf
This commit is contained in:
dan
2016-10-21 21:21:45 +00:00
parent 41f5f6ec2c
commit e43635aaa7
6 changed files with 37 additions and 17 deletions
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13
src/vdbeapi.c
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@@ -1710,9 +1710,14 @@ int sqlite3_preupdate_old(sqlite3 *db, int iIdx, sqlite3_value **ppValue){
if( iIdx>=p->pUnpacked->nField ){
*ppValue = (sqlite3_value *)columnNullValue();
}else{
Mem *pMem = *ppValue = &p->pUnpacked->aMem[iIdx];
*ppValue = &p->pUnpacked->aMem[iIdx];
if( iIdx==p->iPKey ){
sqlite3VdbeMemSetInt64(*ppValue, p->iKey1);
if( iIdx==p->pTab->iPKey ){
sqlite3VdbeMemSetInt64(pMem, p->iKey1);
}else if( p->pTab->aCol[iIdx].affinity==SQLITE_AFF_REAL ){
if( pMem->flags & MEM_Int ){
sqlite3VdbeMemRealify(pMem);
}
}
}
@@ -1789,7 +1794,7 @@ int sqlite3_preupdate_new(sqlite3 *db, int iIdx, sqlite3_value **ppValue){
pMem = (sqlite3_value *)columnNullValue();
}else{
pMem = &pUnpack->aMem[iIdx];
if( iIdx==p->iPKey ){
if( iIdx==p->pTab->iPKey ){
sqlite3VdbeMemSetInt64(pMem, p->iKey2);
}
}
@@ -1810,7 +1815,7 @@ int sqlite3_preupdate_new(sqlite3 *db, int iIdx, sqlite3_value **ppValue){
assert( iIdx>=0 && iIdx<p->pCsr->nField );
pMem = &p->aNew[iIdx];
if( pMem->flags==0 ){
if( iIdx==p->iPKey ){
if( iIdx==p->pTab->iPKey ){
sqlite3VdbeMemSetInt64(pMem, p->iKey2);
}else{
rc = sqlite3VdbeMemCopy(pMem, &p->v->aMem[p->iNewReg+1+iIdx]);