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Overview
Comment:Remove an unnecessary initialization of Vdbe.aOnceFlag.
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SHA1: 421714dad32f3460fa40a7f65e9fa276f5e37f58
User & Date: drh 2011-12-09 17:38:23.898
Context
2011-12-09
17:51
Remove an unnecessary condition. (Closed-Leaf check-in: d9ba023c60 user: drh tags: uninit-vdbe-mem)
17:38
Remove an unnecessary initialization of Vdbe.aOnceFlag. (check-in: 421714dad3 user: drh tags: uninit-vdbe-mem)
17:27
Take out the OP_JumpOnce opcode. Revert compound SELECT to use OP_IfNot, which is the correct behavior. Mark trigger registers as initially invalid. (check-in: 6a9fb47d50 user: drh tags: uninit-vdbe-mem)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/vdbeaux.c.
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    p->aMem--;                      /* aMem[] goes from 1..nMem */
    p->nMem = nMem;                 /*       not from 0..nMem-1 */
    for(n=1; n<=nMem; n++){
      p->aMem[n].flags = MEM_Invalid;
      p->aMem[n].db = db;
    }
  }
  if( p->aOnceFlag ) memset(p->aOnceFlag, 0, p->nOnceFlag);
  p->explain = pParse->explain;
  sqlite3VdbeRewind(p);
}

/*
** Close a VDBE cursor and release all the resources that cursor 
** happens to hold.








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    p->aMem--;                      /* aMem[] goes from 1..nMem */
    p->nMem = nMem;                 /*       not from 0..nMem-1 */
    for(n=1; n<=nMem; n++){
      p->aMem[n].flags = MEM_Invalid;
      p->aMem[n].db = db;
    }
  }

  p->explain = pParse->explain;
  sqlite3VdbeRewind(p);
}

/*
** Close a VDBE cursor and release all the resources that cursor 
** happens to hold.
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