Update the schema and implementation of the Postgres event indexer to improve
certain types of queries against the index. These changes address the use cases
raised by #6843, and are partly inspired by the prototype schema in that issue.
In the old schema, events were flattened, making it difficult to find all the events
associated with a particular block or transaction. In addition, events with no key/value
attributes were entirely lost, since entries were generated only for attributes.
To address these issues, this new schema records blocks, transactions, events,
and attributes in separate tables, and provides views that join these tables to
give a more convenient query surface for block and transaction events.
- All events for a given block can be queried from the `block_events` view.
- All events for a given transaction can be queried from the `tx_events` view.
- Multiple events for the same key can be indexed for both blocks and transactions.
The tests have been reworked, but all of the existing test cases for the old schema
still pass with the new implementation. Various other minor cleanups are included,
ADR-065 is also updated to reflect the updated schema.
An explicit exit prevents the deferred cleanup code from running. In this case,
falling off the end of main will achieve the same goal as an explicit exit.
EDIT: Updated, see [comment below]( https://github.com/tendermint/tendermint/pull/6785#issuecomment-897793175)
This change adds a sketch of the `Debug` mode.
This change adds a `Debug` struct to the node package. This `Debug` struct is intended to be created and started by a command in the `cmd` directory. The `Debug` struct runs the RPC server on the data directories: both the state store and the block store.
This change required a good deal of refactoring. Namely, a new `rpc.go` file was added to the `node` package. This file encapsulates functions for starting RPC servers used by nodes. A potential additional change is to further factor this code into shared code _in_ the `rpc` package.
Minor API tweaks were also made that seemed appropriate such as the mechanism for fetching routes from the `rpc/core` package.
Additional work is required to register the `Debug` service as a command in the `cmd` directory but I am looking for feedback on if this direction seems appropriate before diving much further.
closes: #5908
This ADR restores a variation of the old Request for Comments documentation
that we previously used. The proposal differs from the original formulation,
and does not replace ADRs.
closes#2498
solves part of #3365
Note: difficult to test the event emit in SwitchToFastSync part, might need to change `stateSyncReactor` to an interface in the `nodeImpl` struct
