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Overview
Comment:Reorder two comparisons for a small performance gain in OP_Transaction.
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SHA3-256: d7667f6560318272c8b35b478e29b0ed134105dfd119a2fd53ef0490442c60cc
User & Date: drh 2019-10-05 15:28:24
Context
2019-10-05
18:33
Call sqlite3Prepare() directly, rather than going through sqlite3_prepare(), when processing the sqlite_master.sql column for a schema. check-in: cc49380e user: drh tags: trunk
15:28
Reorder two comparisons for a small performance gain in OP_Transaction. check-in: d7667f65 user: drh tags: trunk
14:39
Performance optimization to the lookaside-memory disabling mechanism. check-in: 17ce1c49 user: drh tags: trunk
Changes
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Changes to src/vdbe.c.

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        p->pc = (int)(pOp - aOp);
        p->rc = rc;
        goto vdbe_return;
      }
      goto abort_due_to_error;
    }

    if( pOp->p2 && p->usesStmtJournal 

     && (db->autoCommit==0 || db->nVdbeRead>1) 
    ){
      assert( sqlite3BtreeIsInTrans(pBt) );
      if( p->iStatement==0 ){
        assert( db->nStatement>=0 && db->nSavepoint>=0 );
        db->nStatement++; 
        p->iStatement = db->nSavepoint + db->nStatement;







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        p->pc = (int)(pOp - aOp);
        p->rc = rc;
        goto vdbe_return;
      }
      goto abort_due_to_error;
    }

    if( p->usesStmtJournal
     && pOp->p2
     && (db->autoCommit==0 || db->nVdbeRead>1) 
    ){
      assert( sqlite3BtreeIsInTrans(pBt) );
      if( p->iStatement==0 ){
        assert( db->nStatement>=0 && db->nSavepoint>=0 );
        db->nStatement++; 
        p->iStatement = db->nSavepoint + db->nStatement;