sqlite

func (CommitTimestamp) TableName ¶ added in v0.4.0

func (CommitTimestamp) TableName() string

func (*MetadataStoreSqlite) AddUtxos ¶ added in v0.8.0

func (d *MetadataStoreSqlite) AddUtxos(
	utxos []models.UtxoSlot,
	txn types.Txn,
) error

AddUtxos saves a batch of UTxOs directly

func (*MetadataStoreSqlite) AutoMigrate ¶ added in v0.4.0

func (d *MetadataStoreSqlite) AutoMigrate(dst ...any) error

AutoMigrate wraps the gorm AutoMigrate

func (*MetadataStoreSqlite) BeginTxn ¶ added in v0.19.0

func (d *MetadataStoreSqlite) BeginTxn() (types.Txn, error)

BeginTxn starts a transaction and returns the handle with an error. Callers that prefer explicit error handling can use this instead of Transaction().

func (*MetadataStoreSqlite) ClearSyncState ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ClearSyncState(
	txn types.Txn,
) error

ClearSyncState removes all sync state entries.

func (*MetadataStoreSqlite) Close ¶ added in v0.4.0

func (d *MetadataStoreSqlite) Close() error

Close gets the database handle from our MetadataStore and closes it

func (*MetadataStoreSqlite) Create ¶ added in v0.4.0

func (d *MetadataStoreSqlite) Create(value any) *gorm.DB

Create creates a record

func (*MetadataStoreSqlite) DB ¶ added in v0.4.0

func (d *MetadataStoreSqlite) DB() *gorm.DB

DB returns the write database handle

func (*MetadataStoreSqlite) DeleteAddressTransactionsAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteAddressTransactionsAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteAddressTransactionsAfterSlot removes address-transaction mapping records added after the given slot.

func (*MetadataStoreSqlite) DeleteBlockNoncesBeforeSlot ¶ added in v0.11.0

func (d *MetadataStoreSqlite) DeleteBlockNoncesBeforeSlot(
	slotNumber uint64,
	txn types.Txn,
) error

DeleteBlockNoncesBeforeSlot deletes block_nonce records with slot less than the specified value

func (*MetadataStoreSqlite) DeleteBlockNoncesBeforeSlotWithoutCheckpoints ¶ added in v0.11.0

func (d *MetadataStoreSqlite) DeleteBlockNoncesBeforeSlotWithoutCheckpoints(
	slotNumber uint64,
	txn types.Txn,
) error

DeleteBlockNoncesBeforeSlotWithoutCheckpoints deletes block_nonce records with slot < given value AND is_checkpoint = false

func (*MetadataStoreSqlite) DeleteCertificatesAfterSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) DeleteCertificatesAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteCertificatesAfterSlot removes all certificate records added after the given slot. This is used during chain rollbacks to undo certificate state changes. All deletions are performed atomically within a transaction to ensure consistency.

func (*MetadataStoreSqlite) DeleteCommitteeMembersAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteCommitteeMembersAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteCommitteeMembersAfterSlot removes committee members added after the given slot and clears deleted_slot for any that were soft-deleted after that slot. This is used during chain rollbacks.

func (*MetadataStoreSqlite) DeleteConstitutionsAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteConstitutionsAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteConstitutionsAfterSlot removes constitutions added after the given slot and clears deleted_slot for any that were soft-deleted after that slot. This is used during chain rollbacks.

func (*MetadataStoreSqlite) DeleteEpochSummariesAfterEpoch ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteEpochSummariesAfterEpoch(
	epoch uint64,
	txn types.Txn,
) error

DeleteEpochSummariesAfterEpoch deletes all epoch summaries after a given epoch. This is used during chain rollbacks.

func (*MetadataStoreSqlite) DeleteEpochSummariesBeforeEpoch ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteEpochSummariesBeforeEpoch(
	epoch uint64,
	txn types.Txn,
) error

DeleteEpochSummariesBeforeEpoch deletes all epoch summaries before a given epoch.

func (*MetadataStoreSqlite) DeleteEpochsAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteEpochsAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteEpochsAfterSlot removes all epoch entries whose start slot is after the given slot.

func (*MetadataStoreSqlite) DeleteGovernanceProposalsAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteGovernanceProposalsAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteGovernanceProposalsAfterSlot removes proposals added after the given slot, clears deleted_slot for any that were soft-deleted after that slot, and reverts status changes (ratified/enacted) that occurred after the rollback slot. This is used during chain rollbacks.

func (*MetadataStoreSqlite) DeleteGovernanceVotesAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteGovernanceVotesAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteGovernanceVotesAfterSlot removes votes added after the given slot and clears deleted_slot for any that were soft-deleted after that slot. This is used during chain rollbacks.

NOTE: Vote changes (when a voter changes their vote) are tracked via vote_updated_slot. If a vote was changed after the rollback slot but originally cast before it, we cannot restore the previous vote value with the current upsert model. For full rollback support of vote changes, votes should be append-only. Currently, we delete any vote whose update occurred after the rollback slot to avoid having stale vote values persist.

func (*MetadataStoreSqlite) DeleteNetworkStateAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteNetworkStateAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteNetworkStateAfterSlot removes network state records added after the given slot.

func (*MetadataStoreSqlite) DeletePParamUpdatesAfterSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) DeletePParamUpdatesAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeletePParamUpdatesAfterSlot removes protocol parameter update records added after the given slot.

func (*MetadataStoreSqlite) DeletePParamsAfterSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) DeletePParamsAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeletePParamsAfterSlot removes protocol parameter records added after the given slot.

func (*MetadataStoreSqlite) DeletePoolStakeSnapshotsAfterEpoch ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeletePoolStakeSnapshotsAfterEpoch(
	epoch uint64,
	txn types.Txn,
) error

DeletePoolStakeSnapshotsAfterEpoch deletes all pool stake snapshots after a given epoch. This is used during chain rollbacks.

func (*MetadataStoreSqlite) DeletePoolStakeSnapshotsBeforeEpoch ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeletePoolStakeSnapshotsBeforeEpoch(
	epoch uint64,
	txn types.Txn,
) error

DeletePoolStakeSnapshotsBeforeEpoch deletes all pool stake snapshots before a given epoch.

func (*MetadataStoreSqlite) DeletePoolStakeSnapshotsForEpoch ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeletePoolStakeSnapshotsForEpoch(
	epoch uint64,
	snapshotType string,
	txn types.Txn,
) error

DeletePoolStakeSnapshotsForEpoch deletes all pool stake snapshots for a specific epoch

func (*MetadataStoreSqlite) DeleteSyncState ¶ added in v0.22.0

func (d *MetadataStoreSqlite) DeleteSyncState(
	key string,
	txn types.Txn,
) error

DeleteSyncState removes a sync state key.

func (*MetadataStoreSqlite) DeleteTransactionsAfterSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) DeleteTransactionsAfterSlot(
	slot uint64,
	txn types.Txn,
) error

DeleteTransactionsAfterSlot removes transaction records added after the given slot. Child records are automatically removed via CASCADE constraints. UTXO hash-based foreign keys (spent_at_tx_id, collateral_by_tx_id, referenced_by_tx_id) are NULLed out before deleting transactions to prevent orphaned references.

func (*MetadataStoreSqlite) DeleteUtxo ¶ added in v0.4.2

func (d *MetadataStoreSqlite) DeleteUtxo(
	utxoId models.UtxoId,
	txn types.Txn,
) error

func (*MetadataStoreSqlite) DeleteUtxos ¶ added in v0.4.2

func (d *MetadataStoreSqlite) DeleteUtxos(
	utxos []models.UtxoId,
	txn types.Txn,
) error

func (*MetadataStoreSqlite) DeleteUtxosAfterSlot ¶ added in v0.4.4

func (d *MetadataStoreSqlite) DeleteUtxosAfterSlot(
	slot uint64,
	txn types.Txn,
) error

func (*MetadataStoreSqlite) First ¶ added in v0.4.0

func (d *MetadataStoreSqlite) First(args any) *gorm.DB

First returns the first DB entry

func (*MetadataStoreSqlite) GetAccount ¶ added in v0.6.0

func (d *MetadataStoreSqlite) GetAccount(
	stakeKey []byte,
	includeInactive bool,
	txn types.Txn,
) (*models.Account, error)

GetAccount gets an account

func (*MetadataStoreSqlite) GetActiveCommitteeMembers ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetActiveCommitteeMembers(
	txn types.Txn,
) ([]*models.AuthCommitteeHot, error)

GetActiveCommitteeMembers retrieves all active committee members. Returns only the latest authorization per cold key, and excludes members whose latest resignation is after their latest authorization.

func (*MetadataStoreSqlite) GetActiveDreps ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetActiveDreps(
	txn types.Txn,
) ([]*models.Drep, error)

GetActiveDreps retrieves all active DReps.

func (*MetadataStoreSqlite) GetActiveGovernanceProposals ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetActiveGovernanceProposals(
	epoch uint64,
	txn types.Txn,
) ([]*models.GovernanceProposal, error)

GetActiveGovernanceProposals retrieves all governance proposals that haven't expired.

func (*MetadataStoreSqlite) GetActivePoolKeyHashes ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetActivePoolKeyHashes(
	txn types.Txn,
) ([][]byte, error)

GetActivePoolKeyHashes retrieves the key hashes of all currently active pools. A pool is active if it has a registration and either no retirement or the retirement epoch is in the future.

This delegates to GetActivePoolKeyHashesAtSlot using the current tip's slot, ensuring consistent same-slot certificate handling via block_index and cert_index ordering (ORDER BY added_slot DESC, block_index DESC, cert_index DESC).

func (*MetadataStoreSqlite) GetActivePoolKeyHashesAtSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetActivePoolKeyHashesAtSlot(
	slot uint64,
	txn types.Txn,
) ([][]byte, error)

GetActivePoolKeyHashesAtSlot retrieves the key hashes of pools that were active at the given slot. A pool was active at a slot if:

1. It had a registration with added_slot <= slot
2. Either no retirement with added_slot <= slot, OR the retirement was for an epoch that hadn't started by the given slot

This implementation only fetches pools that have at least one registration at or before the given slot, avoiding loading all pools for early slot queries. Uses window functions to get the latest registration/retirement per pool directly in SQLite, minimizing memory usage.

func (*MetadataStoreSqlite) GetActivePoolRelays ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetActivePoolRelays(
	txn types.Txn,
) ([]models.PoolRegistrationRelay, error)

GetActivePoolRelays returns all relays from currently active pools. A pool is considered active if it has a registration and either: - No retirement, or - The retirement epoch is in the future

Implementation note: This function loads all registrations and retirements per pool and filters in Go rather than using complex SQL JOINs. This approach is necessary because:

1. GORM's Preload with Limit(1) applies the limit globally, not per-parent
2. Determining the "latest" registration/retirement requires comparing added_slot values which is cumbersome in a single query
3. The filtering logic (retirement epoch vs current epoch) is clearer in Go

For networks with thousands of pools, this may use significant memory. Future optimization could use raw SQL with window functions (ROW_NUMBER) or batch processing if memory becomes a concern.

func (*MetadataStoreSqlite) GetAddressesByStakingKey ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetAddressesByStakingKey(
	stakingKey []byte,
	limit int,
	offset int,
	txn types.Txn,
) ([]models.AddressTransaction, error)

GetAddressesByStakingKey returns distinct addresses mapped to a staking key.

func (*MetadataStoreSqlite) GetAssetByPolicyAndName ¶ added in v0.18.0

func (d *MetadataStoreSqlite) GetAssetByPolicyAndName(
	policyId lcommon.Blake2b224,
	assetName []byte,
	txn types.Txn,
) (models.Asset, error)

GetAssetByPolicyAndName returns an asset by policy ID and asset name

func (*MetadataStoreSqlite) GetAssetsByPolicy ¶ added in v0.18.0

func (d *MetadataStoreSqlite) GetAssetsByPolicy(
	policyId lcommon.Blake2b224,
	txn types.Txn,
) ([]models.Asset, error)

GetAssetsByPolicy returns all assets for a given policy ID

func (*MetadataStoreSqlite) GetAssetsByUTxO ¶ added in v0.18.0

func (d *MetadataStoreSqlite) GetAssetsByUTxO(
	txId []byte,
	idx uint32,
	txn types.Txn,
) ([]models.Asset, error)

GetAssetsByUTxO returns all assets for a given UTxO using transaction ID and output index

func (*MetadataStoreSqlite) GetBackfillCheckpoint ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetBackfillCheckpoint(
	phase string,
	txn types.Txn,
) (*models.BackfillCheckpoint, error)

GetBackfillCheckpoint retrieves a backfill checkpoint by phase. Returns nil (not error) if no checkpoint exists for the phase.

func (*MetadataStoreSqlite) GetBlockNonce ¶ added in v0.11.0

func (d *MetadataStoreSqlite) GetBlockNonce(
	point ocommon.Point,
	txn types.Txn,
) ([]byte, error)

GetBlockNonce retrieves the block nonce for a specific block

func (*MetadataStoreSqlite) GetBlockNoncesInSlotRange ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetBlockNoncesInSlotRange(
	startSlot uint64,
	endSlot uint64,
	txn types.Txn,
) ([]models.BlockNonce, error)

GetBlockNoncesInSlotRange retrieves all block nonces where slot >= startSlot and slot < endSlot.

func (*MetadataStoreSqlite) GetCommitTimestamp ¶ added in v0.4.0

func (d *MetadataStoreSqlite) GetCommitTimestamp() (int64, error)

func (*MetadataStoreSqlite) GetCommitteeActiveCount ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetCommitteeActiveCount(
	txn types.Txn,
) (int, error)

GetCommitteeActiveCount returns the total number of active (non-resigned) committee members. This is used for CC threshold calculations.

func (*MetadataStoreSqlite) GetCommitteeMember ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetCommitteeMember(
	coldKey []byte,
	txn types.Txn,
) (*models.AuthCommitteeHot, error)

GetCommitteeMember retrieves a committee member by cold key. Returns the latest authorization (ordered by added_slot DESC).

func (*MetadataStoreSqlite) GetCommitteeMembers ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetCommitteeMembers(
	txn types.Txn,
) ([]*models.CommitteeMember, error)

GetCommitteeMembers retrieves all active (non-deleted) snapshot-imported committee members.

func (*MetadataStoreSqlite) GetConstitution ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetConstitution(
	txn types.Txn,
) (*models.Constitution, error)

GetConstitution retrieves the current constitution. Returns nil if the constitution has been soft-deleted.

func (*MetadataStoreSqlite) GetDRepVotingPower ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetDRepVotingPower(
	drepCredential []byte,
	txn types.Txn,
) (uint64, error)

GetDRepVotingPower calculates the voting power for a DRep by summing the stake of all accounts delegated to it. Uses the current live UTxO set (deleted_slot = 0) for the calculation.

TODO: This implementation uses the current live UTxO set as an approximation. A future implementation should accept an epoch parameter and use epoch-based stake snapshots for accurate voting power at a specific point in time.

The voting power is computed by: 1. Finding all accounts whose drep field matches the DRep credential 2. Summing those accounts' UTxO values

Returns 0 if the DRep has no delegators.

func (*MetadataStoreSqlite) GetDatum ¶ added in v0.9.0

func (d *MetadataStoreSqlite) GetDatum(
	hash lcommon.Blake2b256,
	txn types.Txn,
) (*models.Datum, error)

GetDatum returns a datum by its hash

func (*MetadataStoreSqlite) GetDrep ¶ added in v0.7.0

func (d *MetadataStoreSqlite) GetDrep(
	cred []byte,
	includeInactive bool,
	txn types.Txn,
) (*models.Drep, error)

GetDrep gets a drep

func (*MetadataStoreSqlite) GetEpoch ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetEpoch(
	epochId uint64,
	txn types.Txn,
) (*models.Epoch, error)

GetEpoch returns a single epoch by its ID, or nil if not found.

func (*MetadataStoreSqlite) GetEpochSummary ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetEpochSummary(
	epoch uint64,
	txn types.Txn,
) (*models.EpochSummary, error)

GetEpochSummary retrieves an epoch summary by epoch number

func (*MetadataStoreSqlite) GetEpochs ¶ added in v0.6.0

func (d *MetadataStoreSqlite) GetEpochs(
	txn types.Txn,
) ([]models.Epoch, error)

GetEpochs returns the list of epochs

func (*MetadataStoreSqlite) GetEpochsByEra ¶ added in v0.4.3

func (d *MetadataStoreSqlite) GetEpochsByEra(
	eraId uint,
	txn types.Txn,
) ([]models.Epoch, error)

GetEpochsByEra returns the list of epochs by era

func (*MetadataStoreSqlite) GetExpiredDReps ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetExpiredDReps(
	epoch uint64,
	txn types.Txn,
) ([]*models.Drep, error)

GetExpiredDReps retrieves all active DReps whose expiry epoch is at or before the given epoch. These DReps have been inactive for longer than the dRepInactivityPeriod and should be considered expired for voting power purposes.

func (*MetadataStoreSqlite) GetGovernanceProposal ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetGovernanceProposal(
	txHash []byte,
	actionIndex uint32,
	txn types.Txn,
) (*models.GovernanceProposal, error)

GetGovernanceProposal retrieves a governance proposal by transaction hash and action index. Returns nil if the proposal has been soft-deleted.

func (*MetadataStoreSqlite) GetGovernanceVotes ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetGovernanceVotes(
	proposalID uint,
	txn types.Txn,
) ([]*models.GovernanceVote, error)

GetGovernanceVotes retrieves all votes for a governance proposal.

func (*MetadataStoreSqlite) GetImportCheckpoint ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetImportCheckpoint(
	importKey string,
	txn types.Txn,
) (*models.ImportCheckpoint, error)

GetImportCheckpoint retrieves the checkpoint for a given import key. Returns nil if no checkpoint exists.

func (*MetadataStoreSqlite) GetLatestEpochSummary ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetLatestEpochSummary(
	txn types.Txn,
) (*models.EpochSummary, error)

GetLatestEpochSummary retrieves the most recent epoch summary

func (*MetadataStoreSqlite) GetNetworkState ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetNetworkState(
	txn types.Txn,
) (*models.NetworkState, error)

GetNetworkState retrieves the most recent network state.

func (*MetadataStoreSqlite) GetPParamUpdates ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetPParamUpdates(
	epoch uint64,
	txn types.Txn,
) ([]models.PParamUpdate, error)

GetPParamUpdates returns a list of protocol parameter updates for a given epoch. Updates are returned in descending order by ID (most recent first).

func (*MetadataStoreSqlite) GetPParams ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetPParams(
	epoch uint64,
	txn types.Txn,
) ([]models.PParams, error)

GetPParams returns a list of protocol parameters for a given epoch. If there are no pparams for the specified epoch, it will return the most recent pparams before the specified epoch

func (*MetadataStoreSqlite) GetPool ¶ added in v0.6.0

func (d *MetadataStoreSqlite) GetPool(
	pkh lcommon.PoolKeyHash,
	includeInactive bool,
	txn types.Txn,
) (*models.Pool, error)

GetPool gets a pool

func (*MetadataStoreSqlite) GetPoolByVrfKeyHash ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetPoolByVrfKeyHash(
	vrfKeyHash []byte,
	txn types.Txn,
) (*models.Pool, error)

GetPoolByVrfKeyHash retrieves an active pool by its VRF key hash. Returns nil if no active pool uses this VRF key.

func (*MetadataStoreSqlite) GetPoolRegistrations ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetPoolRegistrations(
	pkh lcommon.PoolKeyHash,
	txn types.Txn,
) ([]lcommon.PoolRegistrationCertificate, error)

GetPoolRegistrations returns pool registration certificates

func (*MetadataStoreSqlite) GetPoolStakeSnapshot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetPoolStakeSnapshot(
	epoch uint64,
	snapshotType string,
	poolKeyHash []byte,
	txn types.Txn,
) (*models.PoolStakeSnapshot, error)

GetPoolStakeSnapshot retrieves a specific pool's stake snapshot

func (*MetadataStoreSqlite) GetPoolStakeSnapshotsByEpoch ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetPoolStakeSnapshotsByEpoch(
	epoch uint64,
	snapshotType string,
	txn types.Txn,
) ([]*models.PoolStakeSnapshot, error)

GetPoolStakeSnapshotsByEpoch retrieves all pool stake snapshots for an epoch

func (*MetadataStoreSqlite) GetScript ¶ added in v0.18.0

func (d *MetadataStoreSqlite) GetScript(
	hash lcommon.ScriptHash,
	txn types.Txn,
) (*models.Script, error)

GetScript returns the script content by its hash

func (*MetadataStoreSqlite) GetStakeByPool ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetStakeByPool(
	poolKeyHash []byte,
	txn types.Txn,
) (uint64, uint64, error)

GetStakeByPool returns the total delegated stake and delegator count for a pool.

func (*MetadataStoreSqlite) GetStakeByPools ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetStakeByPools(
	poolKeyHashes [][]byte,
	txn types.Txn,
) (map[string]uint64, map[string]uint64, error)

GetStakeByPools returns delegated stake for multiple pools in a single query. Stake is computed by joining active accounts with their live UTxOs (deleted_slot = 0) and summing the UTxO amounts per pool.

func (*MetadataStoreSqlite) GetStakeRegistrations ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetStakeRegistrations(
	stakingKey []byte,
	txn types.Txn,
) ([]lcommon.StakeRegistrationCertificate, error)

GetStakeRegistrations returns stake registration certificates

func (*MetadataStoreSqlite) GetSyncState ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetSyncState(
	key string,
	txn types.Txn,
) (string, error)

GetSyncState retrieves a sync state value by key.

func (*MetadataStoreSqlite) GetTip ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetTip(
	txn types.Txn,
) (ocommon.Tip, error)

GetTip returns the current metadata Tip as ocommon.Tip

func (*MetadataStoreSqlite) GetTotalActiveStake ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetTotalActiveStake(
	epoch uint64,
	snapshotType string,
	txn types.Txn,
) (uint64, error)

GetTotalActiveStake returns the total active stake for an epoch. It uses the pre-calculated total from EpochSummary when available, falling back to summing individual pool snapshots.

func (*MetadataStoreSqlite) GetTransactionByHash ¶ added in v0.18.0

func (d *MetadataStoreSqlite) GetTransactionByHash(
	hash []byte,
	txn types.Txn,
) (*models.Transaction, error)

GetTransactionByHash returns a transaction by its hash

func (*MetadataStoreSqlite) GetTransactionHashesAfterSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetTransactionHashesAfterSlot(
	slot uint64,
	txn types.Txn,
) ([][]byte, error)

GetTransactionHashesAfterSlot returns transaction hashes for transactions added after the given slot. This is used for blob cleanup during rollback/truncation.

func (*MetadataStoreSqlite) GetTransactionsByAddress ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetTransactionsByAddress(
	paymentKey []byte,
	stakingKey []byte,
	limit int,
	offset int,
	order string,
	txn types.Txn,
) ([]models.Transaction, error)

GetTransactionsByAddress returns transactions that involve the given payment/staking key with pagination support.

func (*MetadataStoreSqlite) GetTransactionsByBlockHash ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetTransactionsByBlockHash(
	blockHash []byte,
	txn types.Txn,
) ([]models.Transaction, error)

GetTransactionsByBlockHash returns all transactions for a given block hash, ordered by their position within the block.

func (*MetadataStoreSqlite) GetUtxo ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetUtxo(
	txId []byte,
	idx uint32,
	txn types.Txn,
) (*models.Utxo, error)

GetUtxo returns a Utxo by reference

func (*MetadataStoreSqlite) GetUtxoIncludingSpent ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetUtxoIncludingSpent(
	txId []byte,
	idx uint32,
	txn types.Txn,
) (*models.Utxo, error)

GetUtxoIncludingSpent returns a Utxo by reference, including spent (consumed) UTxOs.

func (*MetadataStoreSqlite) GetUtxosAddedAfterSlot ¶ added in v0.4.3

func (d *MetadataStoreSqlite) GetUtxosAddedAfterSlot(
	slot uint64,
	txn types.Txn,
) ([]models.Utxo, error)

GetUtxosAddedAfterSlot returns a list of Utxos added after a given slot

func (*MetadataStoreSqlite) GetUtxosBatch ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetUtxosBatch(
	refs []UtxoRef,
	txn types.Txn,
) (map[string]*models.Utxo, error)

GetUtxosBatch retrieves multiple UTXOs by their references in a single query. Returns a map keyed by "txid:outputidx" for easy lookup. Large batches are automatically chunked to avoid SQLite expression limits.

func (*MetadataStoreSqlite) GetUtxosByAddress ¶ added in v0.4.2

func (d *MetadataStoreSqlite) GetUtxosByAddress(
	addr ledger.Address,
	txn types.Txn,
) ([]models.Utxo, error)

GetUtxosByAddress returns a list of Utxos

func (*MetadataStoreSqlite) GetUtxosByAddressAtSlot ¶ added in v0.22.0

func (d *MetadataStoreSqlite) GetUtxosByAddressAtSlot(
	addr lcommon.Address,
	slot uint64,
	txn types.Txn,
) ([]models.Utxo, error)

GetUtxosByAddressAtSlot returns UTxOs for an address that existed at a specific slot.

func (*MetadataStoreSqlite) GetUtxosByAssets ¶ added in v0.21.0

func (d *MetadataStoreSqlite) GetUtxosByAssets(
	policyId []byte,
	assetName []byte,
	txn types.Txn,
) ([]models.Utxo, error)

GetUtxosByAssets returns a list of Utxos that contain the specified assets policyId: the policy ID of the asset (required) assetName: the asset name (pass nil to match all assets under the policy, or empty []byte{} to match assets with empty names)

func (*MetadataStoreSqlite) GetUtxosDeletedBeforeSlot ¶ added in v0.4.3

func (d *MetadataStoreSqlite) GetUtxosDeletedBeforeSlot(
	slot uint64,
	limit int,
	txn types.Txn,
) ([]models.Utxo, error)

GetUtxosDeletedBeforeSlot returns a list of Utxos marked as deleted before a given slot

func (*MetadataStoreSqlite) ImportAccount ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ImportAccount(
	account *models.Account,
	txn types.Txn,
) error

ImportAccount upserts an account (insert or update delegation fields on conflict).

func (*MetadataStoreSqlite) ImportDrep ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ImportDrep(
	drep *models.Drep,
	reg *models.RegistrationDrep,
	txn types.Txn,
) error

ImportDrep upserts a DRep and creates a registration record.

func (*MetadataStoreSqlite) ImportPool ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ImportPool(
	pool *models.Pool,
	reg *models.PoolRegistration,
	txn types.Txn,
) error

ImportPool upserts a pool and creates a registration record.

func (*MetadataStoreSqlite) ImportUtxos ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ImportUtxos(
	utxos []models.Utxo,
	txn types.Txn,
) error

ImportUtxos inserts UTxOs in bulk, ignoring duplicates. Assets are inserted in a second pass to avoid cascading the associated Assets into the same bulk INSERT, which can push the variable count over SQLite limits.

func (*MetadataStoreSqlite) IsCommitteeMemberResigned ¶ added in v0.22.0

func (d *MetadataStoreSqlite) IsCommitteeMemberResigned(
	coldKey []byte,
	txn types.Txn,
) (bool, error)

IsCommitteeMemberResigned checks if a committee member has resigned. Returns true only if the latest resignation is after the latest authorization (handles resign-then-rejoin scenarios). Uses (added_slot, id) for deterministic ordering when events occur in the same block.

func (*MetadataStoreSqlite) Order ¶ added in v0.4.0

func (d *MetadataStoreSqlite) Order(args any) *gorm.DB

Order orders a DB query

func (*MetadataStoreSqlite) ReadDB ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ReadDB() *gorm.DB

ReadDB returns the read-only database handle. For file-based databases this is a separate connection pool optimized for concurrent reads via WAL mode. For in-memory databases this returns the same handle as DB().

func (*MetadataStoreSqlite) ReadTransaction ¶ added in v0.22.0

func (d *MetadataStoreSqlite) ReadTransaction() types.Txn

ReadTransaction creates a read-only transaction using the read connection pool. For file-based databases this avoids contending with the write connection; for in-memory databases it falls back to the write connection.

func (*MetadataStoreSqlite) RestoreAccountStateAtSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) RestoreAccountStateAtSlot(
	slot uint64,
	txn types.Txn,
) error

RestoreAccountStateAtSlot reverts account delegation state to the given slot. For accounts modified after the slot, this restores their Pool and Drep delegations to the state they had at the given slot, or deletes them if they were registered after that slot.

This implementation uses batch fetching to avoid N+1 query patterns: instead of querying certificates per-account, it fetches all relevant certificates for all affected accounts upfront (one query per table), then processes them in memory.

func (*MetadataStoreSqlite) RestoreDrepStateAtSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) RestoreDrepStateAtSlot(
	slot uint64,
	txn types.Txn,
) error

RestoreDrepStateAtSlot reverts DRep state to the given slot.

This function handles two cases for DReps modified after the rollback slot:

1. DReps with no registration certificates at or before the slot are deleted (they didn't exist at that point in the chain).
2. DReps with prior registrations have their state restored by examining all relevant certificates (registration, deregistration, update) and determining the correct Active status and anchor data.

The Active status follows these rules:

• A registration certificate activates a DRep
• A deregistration certificate deactivates a DRep
• An update certificate can modify anchor data but cannot reactivate a deregistered DRep (per Cardano protocol rules)

The added_slot field is set to the slot of the most recent effective certificate that modified the DRep's state at or before the rollback slot.

This implementation uses batch fetching to avoid N+1 query patterns: instead of querying certificates per-DRep, it fetches all relevant certificates for all affected DReps upfront (one query per table), then processes them in memory.

func (*MetadataStoreSqlite) RestoreNormalPragmas ¶ added in v0.22.0

func (d *MetadataStoreSqlite) RestoreNormalPragmas() error

RestoreNormalPragmas restores SQLite PRAGMAs to production settings after bulk loading is complete.

func (*MetadataStoreSqlite) RestorePoolStateAtSlot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) RestorePoolStateAtSlot(
	slot uint64,
	txn types.Txn,
) error

RestorePoolStateAtSlot reverts pool state to the given slot.

This function handles two cases for pools:

1. Pools with no registration certificates at or before the slot are deleted (they didn't exist at that point in the chain).
2. Pools with at least one registration at or before the slot have their denormalized fields (Pledge, Cost, Margin, VrfKeyHash, RewardAccount) restored from the most recent such registration.

Child records are automatically removed via CASCADE constraints when pools are deleted. PoolRegistration records after the slot are removed separately by DeleteCertificatesAfterSlot.

This implementation uses batch fetching to avoid N+1 query patterns: instead of querying certificates per-pool, it fetches all relevant registrations for all affected pools upfront in one query with a JOIN to the certs table to get cert_index for deterministic same-slot ordering.

func (*MetadataStoreSqlite) SaveEpochSummary ¶ added in v0.21.0

func (d *MetadataStoreSqlite) SaveEpochSummary(
	summary *models.EpochSummary,
	txn types.Txn,
) error

SaveEpochSummary saves an epoch summary

func (*MetadataStoreSqlite) SavePoolStakeSnapshot ¶ added in v0.21.0

func (d *MetadataStoreSqlite) SavePoolStakeSnapshot(
	snapshot *models.PoolStakeSnapshot,
	txn types.Txn,
) error

SavePoolStakeSnapshot saves a pool stake snapshot

func (*MetadataStoreSqlite) SavePoolStakeSnapshots ¶ added in v0.21.0

func (d *MetadataStoreSqlite) SavePoolStakeSnapshots(
	snapshots []*models.PoolStakeSnapshot,
	txn types.Txn,
) error

SavePoolStakeSnapshots saves multiple pool stake snapshots in batch

func (*MetadataStoreSqlite) SetAccount ¶ added in v0.6.0

func (d *MetadataStoreSqlite) SetAccount(
	stakeKey, pkh, drep []byte,
	slot uint64,
	active bool,
	txn types.Txn,
) error

SetAccount saves an account

func (*MetadataStoreSqlite) SetBackfillCheckpoint ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetBackfillCheckpoint(
	checkpoint *models.BackfillCheckpoint,
	txn types.Txn,
) error

SetBackfillCheckpoint creates or updates a backfill checkpoint, upserting on the Phase column.

func (*MetadataStoreSqlite) SetBlockNonce ¶ added in v0.11.0

func (d *MetadataStoreSqlite) SetBlockNonce(
	blockHash []byte,
	slotNumber uint64,
	nonce []byte,
	isCheckpoint bool,
	txn types.Txn,
) error

SetBlockNonce inserts a block nonce into the block_nonce table

func (*MetadataStoreSqlite) SetBulkLoadPragmas ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetBulkLoadPragmas() error

SetBulkLoadPragmas configures SQLite PRAGMAs optimized for bulk loading. These settings trade crash safety for speed, which is acceptable because immutable chunk data can always be reloaded.

func (*MetadataStoreSqlite) SetCommitTimestamp ¶ added in v0.4.0

func (d *MetadataStoreSqlite) SetCommitTimestamp(
	timestamp int64,
	txn types.Txn,
) error

func (*MetadataStoreSqlite) SetCommitteeMembers ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetCommitteeMembers(
	members []*models.CommitteeMember,
	txn types.Txn,
) error

SetCommitteeMembers upserts committee members imported from a Mithril snapshot. On conflict (same cold_cred_hash), the expires_epoch and added_slot are updated.

func (*MetadataStoreSqlite) SetConstitution ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetConstitution(
	constitution *models.Constitution,
	txn types.Txn,
) error

SetConstitution sets the constitution.

func (*MetadataStoreSqlite) SetDatum ¶ added in v0.9.0

func (d *MetadataStoreSqlite) SetDatum(
	hash lcommon.Blake2b256,
	rawDatum []byte,
	addedSlot uint64,
	txn types.Txn,
) error

SetDatum saves a datum

func (*MetadataStoreSqlite) SetDrep ¶ added in v0.7.0

func (d *MetadataStoreSqlite) SetDrep(
	cred []byte,
	slot uint64,
	url string,
	hash []byte,
	active bool,
	txn types.Txn,
) error

SetDrep saves a drep

func (*MetadataStoreSqlite) SetEpoch ¶ added in v0.4.2

func (d *MetadataStoreSqlite) SetEpoch(
	slot, epoch uint64,
	nonce, evolvingNonce, candidateNonce, lastEpochBlockNonce []byte,
	era, slotLength, lengthInSlots uint,
	txn types.Txn,
) error

SetEpoch saves an epoch

func (*MetadataStoreSqlite) SetGapBlockTransaction ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetGapBlockTransaction(
	tx lcommon.Transaction,
	point ocommon.Point,
	idx uint32,
	txn types.Txn,
) error

SetGapBlockTransaction stores a transaction record and its produced outputs without looking up or consuming input UTxOs. Gap blocks from mithril sync have their UTxO state already reflected in the snapshot, so input processing must be skipped entirely.

func (*MetadataStoreSqlite) SetGenesisStaking ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetGenesisStaking(
	pools map[string]lcommon.PoolRegistrationCertificate,
	stakeDelegations map[string]string,
	blockHash []byte,
	txn types.Txn,
) error

SetGenesisStaking stores genesis pool registrations and stake delegations from the shelley-genesis.json staking section. It creates Pool, PoolRegistration, and Account records at slot 0.

func (*MetadataStoreSqlite) SetGenesisTransaction ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetGenesisTransaction(
	hash []byte,
	blockHash []byte,
	outputs []models.Utxo,
	txn types.Txn,
) error

SetGenesisTransaction stores a genesis transaction record. Genesis transactions have no inputs, witnesses, or fees - just outputs.

func (*MetadataStoreSqlite) SetGovernanceProposal ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetGovernanceProposal(
	proposal *models.GovernanceProposal,
	txn types.Txn,
) error

SetGovernanceProposal creates or updates a governance proposal.

func (*MetadataStoreSqlite) SetGovernanceVote ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetGovernanceVote(
	vote *models.GovernanceVote,
	txn types.Txn,
) error

SetGovernanceVote records a vote on a governance proposal.

func (*MetadataStoreSqlite) SetImportCheckpoint ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetImportCheckpoint(
	checkpoint *models.ImportCheckpoint,
	txn types.Txn,
) error

SetImportCheckpoint creates or updates a checkpoint.

func (*MetadataStoreSqlite) SetNetworkState ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetNetworkState(
	treasury, reserves uint64,
	slot uint64,
	txn types.Txn,
) error

SetNetworkState stores the treasury and reserves balances.

func (*MetadataStoreSqlite) SetPParamUpdate ¶ added in v0.4.2

func (d *MetadataStoreSqlite) SetPParamUpdate(
	genesis, update []byte,
	slot, epoch uint64,
	txn types.Txn,
) error

SetPParamUpdate saves a protocol parameter update

func (*MetadataStoreSqlite) SetPParams ¶ added in v0.4.2

func (d *MetadataStoreSqlite) SetPParams(
	params []byte,
	slot, epoch uint64,
	eraId uint,
	txn types.Txn,
) error

SetPParams saves protocol parameters

func (*MetadataStoreSqlite) SetSyncState ¶ added in v0.22.0

func (d *MetadataStoreSqlite) SetSyncState(
	key, value string,
	txn types.Txn,
) error

SetSyncState stores or updates a sync state value.

func (*MetadataStoreSqlite) SetTip ¶ added in v0.4.2

func (d *MetadataStoreSqlite) SetTip(
	tip ochainsync.Tip,
	txn types.Txn,
) error

SetTip saves a tip

func (*MetadataStoreSqlite) SetTransaction ¶ added in v0.18.0

func (d *MetadataStoreSqlite) SetTransaction(
	tx lcommon.Transaction,
	point ocommon.Point,
	idx uint32,
	certDeposits map[int]uint64,
	txn types.Txn,
) error

SetTransaction adds a new transaction to the database and processes all certificates

func (*MetadataStoreSqlite) SetUtxoDeletedAtSlot ¶ added in v0.4.4

func (d *MetadataStoreSqlite) SetUtxoDeletedAtSlot(
	input ledger.TransactionInput,
	slot uint64,
	txn types.Txn,
) error

SetUtxoDeletedAtSlot marks a UTxO as deleted at the given slot

func (*MetadataStoreSqlite) SetUtxosNotDeletedAfterSlot ¶ added in v0.4.3

func (d *MetadataStoreSqlite) SetUtxosNotDeletedAfterSlot(
	slot uint64,
	txn types.Txn,
) error

SetUtxosNotDeletedAfterSlot marks a list of Utxos as not deleted after a given slot

func (*MetadataStoreSqlite) Start ¶ added in v0.18.0

func (d *MetadataStoreSqlite) Start() error

Start implements the plugin.Plugin interface

func (*MetadataStoreSqlite) Stop ¶ added in v0.18.0

func (d *MetadataStoreSqlite) Stop() error

Stop implements the plugin.Plugin interface

func (*MetadataStoreSqlite) Transaction ¶ added in v0.4.0

func (d *MetadataStoreSqlite) Transaction() types.Txn

Transaction creates a gorm transaction

func (*MetadataStoreSqlite) UpdateDRepActivity ¶ added in v0.22.0

func (d *MetadataStoreSqlite) UpdateDRepActivity(
	drepCredential []byte,
	activityEpoch uint64,
	inactivityPeriod uint64,
	txn types.Txn,
) error

UpdateDRepActivity updates the DRep's last activity epoch and recalculates the expiry epoch. Called when a DRep votes, registers, or updates their registration. The expiryEpoch is set to activityEpoch + inactivityPeriod. Returns ErrDrepActivityNotUpdated if no matching DRep record was found.

func (*MetadataStoreSqlite) Where ¶ added in v0.4.0

func (d *MetadataStoreSqlite) Where(
	query any,
	args ...any,
) *gorm.DB

Where constrains a DB query