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ZRANGE / ZREVRANK add withscore option support #1607

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merged 8 commits into from
Jul 29, 2023

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enjoy-binbin
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Add an option "withscores" to ZRANK and ZREVRANK.
The syntax are:

zrank key member [WITHSCORE]
zrevrank key member [WITHSCORE]

With this option, will additionally return the member's score,
in the form of an array.

127.0.0.1:6666> zadd zset 1 a 2 b 3 c
(integer) 3
127.0.0.1:6666> zrank zset b withscore
1) (integer) 1
2) "2"
127.0.0.1:6666> zrevrank zset c withscore
1) (integer) 0
2) "3"

This option was added in Redis 7.2

Add an option "withscores" to ZRANK and ZREVRANK.
The syntax are:
```
zrank key member [WITHSCORE]
zrevrank key member [WITHSCORE]
```

With this option, will additionally return the member's score,
in the form of an array.
```
127.0.0.1:6666> zadd zset 1 a 2 b 3 c
(integer) 3
127.0.0.1:6666> zrank zset b withscore
1) (integer) 1
2) "2"
127.0.0.1:6666> zrevrank zset c withscore
1) (integer) 0
2) "3"
```

This option was added in Redis 7.2
@enjoy-binbin
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src/commands/cmd_zset.cc Show resolved Hide resolved
src/commands/cmd_zset.cc Show resolved Hide resolved
EXPECT_EQ(i, static_cast<int>(fields_.size() - rank - 1));
EXPECT_EQ(scores_[i], score);
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Would FLOAT EQ better here? Or it's expect to be EQ?

@PragmaTwice PragmaTwice merged commit 6521198 into apache:unstable Jul 29, 2023
@enjoy-binbin enjoy-binbin deleted the zrank_withscore branch July 29, 2023 15:05
p1u3o pushed a commit to p1u3o/incubator-kvrocks that referenced this pull request Aug 1, 2023
Add an option "withscores" to ZRANK and ZREVRANK.
The syntax are:
```
zrank key member [WITHSCORE]
zrevrank key member [WITHSCORE]
```

With this option, will additionally return the member's score,
in the form of an array.
```
127.0.0.1:6666> zadd zset 1 a 2 b 3 c
(integer) 3
127.0.0.1:6666> zrank zset b withscore
1) (integer) 1
2) "2"
127.0.0.1:6666> zrevrank zset c withscore
1) (integer) 0
2) "3"
```

This option was added in Redis 7.2
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4 participants