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Modifications to pass a flag to internal routine sqlite3BtreeCursor() when a cursor that is used solely for deleting b-tree entries, or for obtaining the components of keys to delete from other b-trees, is opened.

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FossilOrigin-Name: cdc92919e600007cae5eb61223684f48a65babc0
This commit is contained in:
dan
2015-10-22 20:54:33 +00:00
parent 7ef855f156
commit fd261ec67e
14 changed files with 139 additions and 35 deletions
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8
src/vdbe.c
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@@ -3324,7 +3324,6 @@ case OP_ReopenIdx: {
case OP_OpenRead:
case OP_OpenWrite:
assert( (pOp->p5&(OPFLAG_P2ISREG|OPFLAG_BULKCSR|OPFLAG_SEEKEQ))==pOp->p5 );
assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
assert( p->bIsReader );
assert( pOp->opcode==OP_OpenRead || pOp->opcode==OP_ReopenIdx
@@ -3345,7 +3344,8 @@ case OP_OpenWrite:
pX = pDb->pBt;
assert( pX!=0 );
if( pOp->opcode==OP_OpenWrite ){
wrFlag = 1;
assert( OPFLAG_FORDELETE==BTREE_FORDELETE );
wrFlag = BTREE_WRCSR | (pOp->p5 & OPFLAG_FORDELETE);
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
if( pDb->pSchema->file_format < p->minWriteFileFormat ){
p->minWriteFileFormat = pDb->pSchema->file_format;
@@ -3465,11 +3465,11 @@ case OP_OpenEphemeral: {
assert( pKeyInfo->db==db );
assert( pKeyInfo->enc==ENC(db) );
pCx->pKeyInfo = pKeyInfo;
rc = sqlite3BtreeCursor(pCx->pBt, pgno, 1, pKeyInfo, pCx->pCursor);
rc = sqlite3BtreeCursor(pCx->pBt, pgno, BTREE_WRCSR, pKeyInfo, pCx->pCursor);
}
pCx->isTable = 0;
}else{
rc = sqlite3BtreeCursor(pCx->pBt, MASTER_ROOT, 1, 0, pCx->pCursor);
rc = sqlite3BtreeCursor(pCx->pBt, MASTER_ROOT, BTREE_WRCSR, 0, pCx->pCursor);
pCx->isTable = 1;
}
}