Implement more API for Simple key-value pair data type

[bigboss2063]

At present, the API supported for Simple key-value pairs are limited, and there is a need to further expand the functionality of nutsdb.

We plan to implement the following interfaces in tx_btree.go (including but not limited to, if you want to implement more, comment).

If you want to participate, please leave a comment below. Notice: The following API descriptions are all command descriptions in Redis. Please add Bucket when implementing it, and implement it in the form of nutsdb. API like INCR and DECR can be claimed together for a more consistent code style.

Please update the docs and examples when you finish.

Command	Description	assigned to	finished
MSET key value [key value...]	Set multiple key-value pairs.	@TremblingV5	✔
MGET key [key...]	Get values of multiple keys.	@TremblingV5	✔
INCR key	Increment the integer value of a key.	@TremblingV5	✔
DECR key	Decrement the integer value of a key.	@TremblingV5	✔
INCRBY key increment	Increment the integer value of a key by a specified amount.	@TremblingV5	✔
DECRBY key decrement	Decrement the integer value of a key by a specified amount.	@TremblingV5	✔
APPEND key value	Append a value to an existing key if it is a string.	@TremblingV5	✔
STRLEN key	Get the length of the value stored at a key.	@yudhasubki	✔
SETNX key value	Set the value of a key if it does not exist.	@ksankeerth	✔
SETEX key value	Set the value of a key if it does exist.	@ksankeerth	✔
GETSET key value	Set the value of a key and return its old value.	@yudhasubki	✔
GETBIT key offset	For the string value stored in key, obtain the bit at the specified offset.	@TremblingV5	✔
SETBIT key offset value	Set or clear the bit at the specified offset for the string value stored in key.	@TremblingV5	✔
GETRANGE key start end	Return the substring of the string value in key.	@TremblingV5	✔
TTL key	Returns the remaining expiration time of key.	@ksankeerth	✔
PERSIST key	Remove expiration time of key.	@ksankeerth	✔

If you have any other suggestions, please comment 🙌.

[TremblingV5]

I want to participate this proposal, so could you assign one or some to me ?

[ksankeerth]

I also want to contribute this proposal, Can you assign one or few tasks to me?
I'm happy to collaborate with @TremblingV5 for this proposal.

[bigboss2063]

I want to participate this proposal, so could you assign one or some to me ?

Hi! You can choose any api that you want to implement 😁, or how about INCR, DECR, INCRBY, DECRBY ?

[bigboss2063]

I also want to contribute this proposal, Can you assign one or few tasks to me? I'm happy to collaborate with @TremblingV5 for this proposal.

Thanks! You can choose any api that you want to implement, or how about SETNX, SETEX?

[ksankeerth]

I also want to contribute this proposal, Can you assign one or few tasks to me? I'm happy to collaborate with @TremblingV5 for this proposal.

Thanks! You can choose any api that you want to implement, or how about SETNX, SETEX?

Sure, I'll work on APIs for SETNX and SETEX.

[TremblingV5]

I want to participate this proposal, so could you assign one or some to me ?

Hi! You can choose any api that you want to implement 😁, or how about INCR, DECR, INCRBY, DECRBY ?

OK, got it

[TremblingV5]

The last job seem has been finished, so could you please assign me other one or some

[bigboss2063]

The last job seem has been finished, so could you please assign me other one or some

Sure! Maybe GETBIT and SETBIT?

[TremblingV5]

The last job seem has been finished, so could you please assign me other one or some

Sure! Maybe GETBIT and SETBIT?

OK, got it

[ksankeerth]

Hi @bigboss2063, Can you assign a few more tasks to me?

[bigboss2063]

Hi @bigboss2063, Can you assign a few more tasks to me?

Sure, how about TTL and PERSIST?

[ksankeerth]

Hi @bigboss2063, Can you assign a few more tasks to me?

Sure, how about TTL and PERSIST?

👍

[bigboss2063]

There is a thing I forgot. If you implement a API, please update the doc and example. @ksankeerth @TremblingV5

[yudhasubki]

hi @bigboss2063 do you mind assigning me StrLen()?

[bigboss2063]

hi @bigboss2063 do you mind assigning me StrLen()?

Sure!

[yudhasubki]

hi @bigboss2063 let me take the GetSet()

[bigboss2063]

hi @bigboss2063 let me take the GetSet()

Sure!

[TremblingV5]

I'm ready for next work, please assign me one or more. I prefer more. : )

[bigboss2063]

I'm ready for next work, please assign me one or more. I prefer more. : )

If you don't think it's too simple, I can assign them all to you. 🤣

[TremblingV5]

If you don't think it's too simple, I can assign them all to you. 🤣

OK I can do them all 🤣

[bigboss2063]

Guys, our task is temporarily completed. If you have any more ideas, please comment or open a new issue. 😁