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The previous check-in with changes to the max_page_count pragma was not

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quite correct.  This check-in fixes the problem.

FossilOrigin-Name: 30c26c3b13b29ce57683e91ac11641d4eb4d678f
This commit is contained in:
drh
2010-11-23 20:25:08 +00:00
parent 60ac3f426c
commit c84e033c92
4 changed files with 23 additions and 18 deletions
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14
src/vdbe.c
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@@ -5793,16 +5793,22 @@ case OP_Pagecount: { /* out2-prerelease */
/* Opcode: MaxPgcnt P1 P2 P3 * *
**
** Try to set the maximum page count for database P1 to the value in P3.
** Do not let the maximum page count fall below the current page count.
** Do not let the maximum page count fall below the current page count and
** do not change the maximum page count value if P3==0.
**
** Store the maximum page count after the change in register P2.
*/
case OP_MaxPgcnt: { /* out2-prerelease */
unsigned int pgcnt;
unsigned int newMax;
Btree *pBt;
pBt = db->aDb[pOp->p1].pBt;
pgcnt = sqlite3BtreeLastPage(pBt);
pOut->u.i = sqlite3BtreeMaxPageCount(pBt, pOp->p3<pgcnt ? pgcnt : pOp->p3);
newMax = 0;
if( pOp->p3 ){
newMax = sqlite3BtreeLastPage(pBt);
if( pOp->p3>newMax ) newMax = pOp->p3;
}
pOut->u.i = sqlite3BtreeMaxPageCount(pBt, newMax);
break;
}
#endif