void *sqlite3WhereMalloc(WhereInfo *pWInfo, u64 nByte){
  WhereMemBlock *pBlock;
  pBlock = sqlite3DbMallocRawNN(pWInfo->pParse->db, nByte+sizeof(*pBlock));
  if( pBlock ){
    pBlock->pNext = pWInfo->pMemToFree;
    pBlock->sz = nByte;
    pWInfo->pMemToFree = pBlock;
    pBlock++;
  }
  return (void*)pBlock;
}
Unknown