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Remove unreachable code from this branch.

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FossilOrigin-Name: 657c7b4f9df53e041a33cfad00ee2f507ac09c97a2ae61164bd189d660d167da
This commit is contained in:
dan
2024-03-13 18:41:05 +00:00
parent 35057fb4bc
commit aa2e244e14
3 changed files with 25 additions and 42 deletions
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53
src/insert.c
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@@ -604,29 +604,29 @@ static int multiValueIsConstantNoAff(ExprList *pRow){
}
/*
** This function is called by the parser for the second and subsequent
** rows of a multi-row VALUES clause.
*/
Select *sqlite3MultiValues(Parse *pParse, Select *pLeft, ExprList *pRow){
SrcItem *p;
SelectDest dest;
Select *pSelect = 0;
if( pParse->db->init.busy
|| pParse->pNewTrigger
if( pLeft->pPrior
|| pParse->bHasWith
|| pParse->db->init.busy
|| multiValueIsConstant(pRow)==0
|| pLeft->pPrior
|| (pLeft->pSrc->nSrc==0 && multiValueIsConstantNoAff(pLeft->pEList)==0)
){
/* This row of the VALUES clause cannot be coded immediately. */
Select *pSelect = 0;
int f = SF_Values | SF_MultiValue;
if( pLeft->pSrc->nSrc ){
sqlite3MultiValuesEnd(pParse, pLeft);
f = SF_Values;
}else if( pLeft->pPrior ){
/* In this case set the SF_MultiValue flag only if it was set on
** the previous Select structure. */
/* In this case set the SF_MultiValue flag only if it was set on pLeft */
f = (f & pLeft->selFlags);
}
pSelect = sqlite3SelectNew(pParse,pRow,0,0,0,0,0,f,0);
pSelect = sqlite3SelectNew(pParse, pRow, 0, 0, 0, 0, 0, f, 0);
pLeft->selFlags &= ~SF_MultiValue;
if( pSelect ){
pSelect->op = TK_ALL;
@@ -634,6 +634,7 @@ Select *sqlite3MultiValues(Parse *pParse, Select *pLeft, ExprList *pRow){
pLeft = pSelect;
}
}else{
SrcItem *p = 0;
if( pLeft->pSrc->nSrc==0 ){
/* Co-routine has not yet been started. */
@@ -642,15 +643,14 @@ Select *sqlite3MultiValues(Parse *pParse, Select *pLeft, ExprList *pRow){
pRet = sqlite3SelectNew(pParse, 0, 0, 0, 0, 0, 0, 0, 0);
if( pRet ){
p = &pRet->pSrc->a[0];
SelectDest dest;
pRet->pSrc->nSrc = 1;
p = &pRet->pSrc->a[0];
p->pSelect = pLeft;
p->fg.viaCoroutine = 1;
p->addrFillSub = sqlite3VdbeCurrentAddr(v) + 1;
p->regReturn = ++pParse->nMem;
p->iCursor = -1;
sqlite3VdbeAddOp3(v,OP_InitCoroutine,p->regReturn,0,p->addrFillSub);
sqlite3SelectDestInit(&dest, SRT_Coroutine, p->regReturn);
sqlite3Select(pParse, pLeft, &dest);
@@ -663,31 +663,14 @@ Select *sqlite3MultiValues(Parse *pParse, Select *pLeft, ExprList *pRow){
}
if( pParse->nErr==0 ){
pSelect = sqlite3SelectNew(pParse, pRow, 0, 0, 0, 0, 0, SF_Values, 0);
if( pSelect ){
if( p->pSelect->pEList->nExpr!=pSelect->pEList->nExpr ){
sqlite3SelectWrongNumTermsError(pParse, pSelect);
}else{
sqlite3SelectPrep(pParse, pSelect, 0);
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pSelect->pWin ){
sqlite3SelectDestInit(&dest, SRT_Coroutine, p->regReturn);
dest.iSdst = p->regResult;
dest.nSdst = pRow->nExpr;
dest.iSDParm = p->regReturn;
sqlite3Select(pParse, pSelect, &dest);
}else
#endif
{
sqlite3ExprCodeExprList(pParse, pSelect->pEList,p->regResult,0,0);
sqlite3VdbeAddOp1(pParse->pVdbe, OP_Yield, p->regReturn);
}
}
sqlite3SelectDelete(pParse->db, pSelect);
if( p->pSelect->pEList->nExpr!=pRow->nExpr ){
sqlite3SelectWrongNumTermsError(pParse, p->pSelect);
}else{
sqlite3ExprCodeExprList(pParse, pRow, p->regResult, 0, 0);
sqlite3VdbeAddOp1(pParse->pVdbe, OP_Yield, p->regReturn);
}
}else{
sqlite3ExprListDelete(pParse->db, pRow);
}
sqlite3ExprListDelete(pParse->db, pRow);
}
return pLeft;