Xueping Yang

Add Index field for BucketInfo

1

Query ``` query{ delegate(startEpoch: 10928, epochCount: 1, delegateName: "longz"){ bucketInfo{ exist bucketInfoList{ epochNumber bucketInfo{ isNative voterEthAddress votes remainingDuration decay } count } } } } ``` Scheme: `Index` field stored...

we can use below graphql to query those transactions: ``` query { xrc20 {data: byContractAddress(address: "io19fsq8e9krrlng4ay5gyq6q5tqfym28yq9ly0fz", numPerPage: 10, page: 1) { exist xrc20 { contract hash timestamp from to quantity...

### What version of iotex-core image (or code branch) are you using? All ### What did you do? If possible, provide a recipe for reproducing the error. Query chain' state...

## Description Please provide a detailed description of what was done in this PR. (And mentioned if linked to an issue [docs](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)) ## Changes include - [ ] Bugfix (non-breaking...

### What version of iotex-core image (or code branch) are you using? latest ### What operating system and processor architecture are you using? ### What did you do? If possible,...