EVM Query Language (EQL) is a SQL-like language designed to query EVM chains, aiming to support complex relational queries on EVM chain first-class citizens (blocks, accounts, and transactions). It provides an ergonomic syntax for developers and researchers to compose custom datasets without boilerplate code.
> Indexers are node operators in The Graph Network that stake [GRT] in order to provide indexing and query processing services. Indexers earn query fees and indexing rewards for their services. They also earn query fees that are rebated according to an exponential rebate function.