prysm-pulse/beacon-chain/db/kv/schema.go

package kv

// The schema will define how to store and retrieve data from the db.
// we can prefix or suffix certain values such as `block` with attributes
// for prefix-wide scans across the underlying BoltDB buckets when filtering data.
// For example, we might store attestations as shard + attestation_root -> attestation, making
// it easy to scan for keys that have a certain shard number as a prefix and return those
// corresponding attestations.
var (
	attestationsBucket                   = []byte("attestations")
	blocksBucket                         = []byte("blocks")
	validatorsBucket                     = []byte("validators")
	stateBucket                          = []byte("state")
	stateSummaryBucket                   = []byte("state-summary")
	proposerSlashingsBucket              = []byte("proposer-slashings")
	attesterSlashingsBucket              = []byte("attester-slashings")
	voluntaryExitsBucket                 = []byte("voluntary-exits")
	chainMetadataBucket                  = []byte("chain-metadata")
	checkpointBucket                     = []byte("check-point")
	archivedValidatorSetChangesBucket    = []byte("archived-active-changes")
	archivedCommitteeInfoBucket          = []byte("archived-committee-info")
	archivedBalancesBucket               = []byte("archived-balances")
	archivedValidatorParticipationBucket = []byte("archived-validator-participation")
	powchainBucket                       = []byte("powchain")

	// Key indices buckets.
	blockParentRootIndicesBucket        = []byte("block-parent-root-indices")
	blockSlotIndicesBucket              = []byte("block-slot-indices")
	attestationHeadBlockRootBucket      = []byte("attestation-head-block-root-indices")
	attestationSourceRootIndicesBucket  = []byte("attestation-source-root-indices")
	attestationSourceEpochIndicesBucket = []byte("attestation-source-epoch-indices")
	attestationTargetRootIndicesBucket  = []byte("attestation-target-root-indices")
	attestationTargetEpochIndicesBucket = []byte("attestation-target-epoch-indices")
	finalizedBlockRootsIndexBucket      = []byte("finalized-block-roots-index")

	// Specific item keys.
	headBlockRootKey          = []byte("head-root")
	genesisBlockRootKey       = []byte("genesis-root")
	depositContractAddressKey = []byte("deposit-contract")
	justifiedCheckpointKey    = []byte("justified-checkpoint")
	finalizedCheckpointKey    = []byte("finalized-checkpoint")
	powchainDataKey           = []byte("powchain-data")

	// Migration bucket.
	migrationBucket = []byte("migrations")
)