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First attempt at getting block-sort to work. This is an incremental check-in.

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There are many problems still to be worked out.

FossilOrigin-Name: 59742dd4c5259883850044d0938248b009ebd045
This commit is contained in:
drh
2014-03-19 14:10:55 +00:00
parent ddba0c227e
commit 079a307259
12 changed files with 225 additions and 124 deletions
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6
src/expr.c
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@@ -949,7 +949,6 @@ ExprList *sqlite3ExprListDup(sqlite3 *db, ExprList *p, int flags){
if( p==0 ) return 0;
pNew = sqlite3DbMallocRaw(db, sizeof(*pNew) );
if( pNew==0 ) return 0;
pNew->iECursor = 0;
pNew->nExpr = i = p->nExpr;
if( (flags & EXPRDUP_REDUCE)==0 ) for(i=1; i<p->nExpr; i+=i){}
pNew->a = pItem = sqlite3DbMallocRaw(db, i*sizeof(p->a[0]) );
@@ -1062,7 +1061,6 @@ Select *sqlite3SelectDup(sqlite3 *db, Select *p, int flags){
pNew->selFlags = p->selFlags & ~SF_UsesEphemeral;
pNew->addrOpenEphm[0] = -1;
pNew->addrOpenEphm[1] = -1;
pNew->addrOpenEphm[2] = -1;
pNew->nSelectRow = p->nSelectRow;
pNew->pWith = withDup(db, p->pWith);
return pNew;
@@ -2335,7 +2333,7 @@ void sqlite3ExprCodeMove(Parse *pParse, int iFrom, int iTo, int nReg){
int i;
struct yColCache *p;
assert( iFrom>=iTo+nReg || iFrom+nReg<=iTo );
sqlite3VdbeAddOp3(pParse->pVdbe, OP_Move, iFrom, iTo, nReg-1);
sqlite3VdbeAddOp3(pParse->pVdbe, OP_Move, iFrom, iTo, nReg);
for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
int x = p->iReg;
if( x>=iFrom && x<iFrom+nReg ){
@@ -2736,7 +2734,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
}
sqlite3ExprCachePush(pParse); /* Ticket 2ea2425d34be */
sqlite3ExprCodeExprList(pParse, pFarg, r1,
sqlite3ExprCodeExprList(pParse, pFarg, r1,
SQLITE_ECEL_DUP|SQLITE_ECEL_FACTOR);
sqlite3ExprCachePop(pParse, 1); /* Ticket 2ea2425d34be */
}else{