Question

假设我有两个数据集。的 DS1： 1 b 2 c 3 d 4 e 5

DS2： 1次通过 2失败了 3通 4通 5失败

我希望获得如下输出：一次通过 b 2失败了 c 3通过 d 4通过 e 5失败

现在我的问题是，我应该使用什么 pig 命令来获得所需的输出？

Answer 1

JOIN。假设文件中的数据以制表符分隔。

    usernameField = [[UITextField alloc] initWithFrame:CGRectZero];
    usernameField.borderStyle = UITextBorderStyleLine;
    usernameField.backgroundColor = [UIColor whiteColor];
    usernameField.font = [UIFont fontWithName:@"HelveticaNeue-Light" size:16];
    usernameField.placeholder = @"username";
    usernameField.autocapitalizationType = UITextAutocapitalizationTypeNone;
    usernameField.autocorrectionType = UITextAutocorrectionTypeNo;
    usernameField.keyboardType = UIKeyboardTypeASCIICapable;
    usernameField.returnKeyType = UIReturnKeyDone;
    usernameField.spellCheckingType = UITextSpellCheckingTypeNo;
    usernameField.clearButtonMode = UITextFieldViewModeWhileEditing;
    usernameField.textAlignment = NSTextAlignmentCenter;
    usernameField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
    usernameField.delegate = self;
    [self.scrollview addSubview:usernameField];

    passwordField = [[UITextField alloc] initWithFrame:CGRectZero];
    passwordField.borderStyle = UITextBorderStyleLine;
    passwordField.backgroundColor = [UIColor whiteColor];
    passwordField.font = [UIFont fontWithName:@"HelveticaNeue-Light" size:16];
    passwordField.placeholder = @"password";
    passwordField.autocapitalizationType = UITextAutocapitalizationTypeNone;
    passwordField.autocorrectionType = UITextAutocorrectionTypeNo;
    passwordField.keyboardType = UIKeyboardTypeDefault;
    passwordField.returnKeyType = UIReturnKeyDone;
    passwordField.spellCheckingType = UITextSpellCheckingTypeNo;
    passwordField.clearButtonMode = UITextFieldViewModeNever;
    passwordField.textAlignment = NSTextAlignmentCenter;
    passwordField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
    passwordField.clearsOnBeginEditing = YES;
    passwordField.secureTextEntry = YES;
    passwordField.delegate = self;
    [self.scrollview addSubview:passwordField];

使用PIG加入两个具有公共行的不同表

1 个答案: