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lightning/doc/lightning-sql.7.md
Rusty Russell 14aac0769c doc: document the sql command. 
In particular, we generate the schema part from the plugin itself.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Plugins: `sql` plugin command to perform server-side complex queries.
2023-01-30 15:15:41 -06:00

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lightning-sql -- Command to do complex queries on list commands

SYNOPSIS

sql query

DESCRIPTION

The sql RPC command runs the given query across a sqlite3 database created from various list commands.

When tables are accessed, it calls the above commands, so it's no faster than any other local access (though it goes to great length to cache listnodes and listchannels) which then processes the results.

It is, however faster for remote access if the result of the query is much smaller than the list commands would be.

TREATMENT OF TYPES

The following types are supported in schemas, and this shows how they are presented in the database. This matters: a JSON boolean is represented as an integer in the database, so a query will return 0 or 1, not true or false.

  • hex. A hex string.

    • JSON: a string
    • sqlite3: BLOB

  • hash/secret/pubkey/txid: just like hex.

  • msat/integer/u64/u32/u16/u8. Normal numbers.

    • JSON: an unsigned integer
    • sqlite3: INTEGER

  • boolean. True or false.

    • JSON: literal true or false
    • sqlite3: INTEGER

  • number. A floating point number (used for times in some places).

    • JSON: number
    • sqlite3: REAL

  • string. Text.

    • JSON: string
    • sqlite3: TEXT

  • short_channel_id. A short-channel-id of form 1x2x3.

    • JSON: string
    • sqlite3: TEXT

TABLES

The following tables are currently supported:

  • channels indexed by short_channel_id (see lightning-listchannels(7))

    • source (type pubkey, sqltype BLOB)
    • destination (type pubkey, sqltype BLOB)
    • short_channel_id (type short_channel_id, sqltype TEXT)
    • direction (type u32, sqltype INTEGER)
    • public (type boolean, sqltype INTEGER)
    • amount_msat (type msat, sqltype INTEGER)
    • message_flags (type u8, sqltype INTEGER)
    • channel_flags (type u8, sqltype INTEGER)
    • active (type boolean, sqltype INTEGER)
    • last_update (type u32, sqltype INTEGER)
    • base_fee_millisatoshi (type u32, sqltype INTEGER)
    • fee_per_millionth (type u32, sqltype INTEGER)
    • delay (type u32, sqltype INTEGER)
    • htlc_minimum_msat (type msat, sqltype INTEGER)
    • htlc_maximum_msat (type msat, sqltype INTEGER)
    • features (type hex, sqltype BLOB)

  • forwards indexed by in_channel and in_htlc_id (see lightning-listforwards(7))

    • in_channel (type short_channel_id, sqltype TEXT)
    • in_htlc_id (type u64, sqltype INTEGER)
    • in_msat (type msat, sqltype INTEGER)
    • status (type string, sqltype TEXT)
    • received_time (type number, sqltype REAL)
    • out_channel (type short_channel_id, sqltype TEXT)
    • out_htlc_id (type u64, sqltype INTEGER)
    • style (type string, sqltype TEXT)
    • fee_msat (type msat, sqltype INTEGER)
    • out_msat (type msat, sqltype INTEGER)
    • resolved_time (type number, sqltype REAL)
    • failcode (type u32, sqltype INTEGER)
    • failreason (type string, sqltype TEXT)

  • htlcs indexed by short_channel_id and id (see lightning-listhtlcs(7))

    • short_channel_id (type short_channel_id, sqltype TEXT)
    • id (type u64, sqltype INTEGER)
    • expiry (type u32, sqltype INTEGER)
    • amount_msat (type msat, sqltype INTEGER)
    • direction (type string, sqltype TEXT)
    • payment_hash (type hash, sqltype BLOB)
    • state (type string, sqltype TEXT)

  • invoices indexed by payment_hash (see lightning-listinvoices(7))

    • label (type string, sqltype TEXT)
    • description (type string, sqltype TEXT)
    • payment_hash (type hash, sqltype BLOB)
    • status (type string, sqltype TEXT)
    • expires_at (type u64, sqltype INTEGER)
    • amount_msat (type msat, sqltype INTEGER)
    • bolt11 (type string, sqltype TEXT)
    • bolt12 (type string, sqltype TEXT)
    • local_offer_id (type hash, sqltype BLOB)
    • invreq_payer_note (type string, sqltype TEXT)
    • pay_index (type u64, sqltype INTEGER)
    • amount_received_msat (type msat, sqltype INTEGER)
    • paid_at (type u64, sqltype INTEGER)
    • payment_preimage (type secret, sqltype BLOB)

  • nodes indexed by nodeid (see lightning-listnodes(7))

    • nodeid (type pubkey, sqltype BLOB)
    • last_timestamp (type u32, sqltype INTEGER)
    • alias (type string, sqltype TEXT)
    • color (type hex, sqltype BLOB)
    • features (type hex, sqltype BLOB)
    • related table nodes_addresses
      • row (reference to nodes.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • type (type string, sqltype TEXT)
      • port (type u16, sqltype INTEGER)
      • address (type string, sqltype TEXT)
    • option_will_fund_lease_fee_base_msat (type msat, sqltype INTEGER, from JSON object option_will_fund)
    • option_will_fund_lease_fee_basis (type u32, sqltype INTEGER, from JSON object option_will_fund)
    • option_will_fund_funding_weight (type u32, sqltype INTEGER, from JSON object option_will_fund)
    • option_will_fund_channel_fee_max_base_msat (type msat, sqltype INTEGER, from JSON object option_will_fund)
    • option_will_fund_channel_fee_max_proportional_thousandths (type u32, sqltype INTEGER, from JSON object option_will_fund)
    • option_will_fund_compact_lease (type hex, sqltype BLOB, from JSON object option_will_fund)

  • offers indexed by offer_id (see lightning-listoffers(7))

    • offer_id (type hash, sqltype BLOB)
    • active (type boolean, sqltype INTEGER)
    • single_use (type boolean, sqltype INTEGER)
    • bolt12 (type string, sqltype TEXT)
    • used (type boolean, sqltype INTEGER)
    • label (type string, sqltype TEXT)

  • peerchannels indexed by peer_id (see lightning-listpeerchannels(7))

    • peer_id (type pubkey, sqltype BLOB)
    • peer_connected (type boolean, sqltype INTEGER)
    • state (type string, sqltype TEXT)
    • scratch_txid (type txid, sqltype BLOB)
    • feerate_perkw (type u32, sqltype INTEGER, from JSON object feerate)
    • feerate_perkb (type u32, sqltype INTEGER, from JSON object feerate)
    • owner (type string, sqltype TEXT)
    • short_channel_id (type short_channel_id, sqltype TEXT)
    • channel_id (type hash, sqltype BLOB)
    • funding_txid (type txid, sqltype BLOB)
    • funding_outnum (type u32, sqltype INTEGER)
    • initial_feerate (type string, sqltype TEXT)
    • last_feerate (type string, sqltype TEXT)
    • next_feerate (type string, sqltype TEXT)
    • next_fee_step (type u32, sqltype INTEGER)
    • related table peerchannels_inflight
      • row (reference to peerchannels.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • funding_txid (type txid, sqltype BLOB)
      • funding_outnum (type u32, sqltype INTEGER)
      • feerate (type string, sqltype TEXT)
      • total_funding_msat (type msat, sqltype INTEGER)
      • our_funding_msat (type msat, sqltype INTEGER)
      • scratch_txid (type txid, sqltype BLOB)
    • close_to (type hex, sqltype BLOB)
    • private (type boolean, sqltype INTEGER)
    • opener (type string, sqltype TEXT)
    • closer (type string, sqltype TEXT)
    • related table peerchannels_features
      • row (reference to peerchannels.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • features (type string, sqltype TEXT)
    • funding_pushed_msat (type msat, sqltype INTEGER, from JSON object funding)
    • funding_local_funds_msat (type msat, sqltype INTEGER, from JSON object funding)
    • funding_remote_funds_msat (type msat, sqltype INTEGER, from JSON object funding)
    • funding_fee_paid_msat (type msat, sqltype INTEGER, from JSON object funding)
    • funding_fee_rcvd_msat (type msat, sqltype INTEGER, from JSON object funding)
    • to_us_msat (type msat, sqltype INTEGER)
    • min_to_us_msat (type msat, sqltype INTEGER)
    • max_to_us_msat (type msat, sqltype INTEGER)
    • total_msat (type msat, sqltype INTEGER)
    • fee_base_msat (type msat, sqltype INTEGER)
    • fee_proportional_millionths (type u32, sqltype INTEGER)
    • dust_limit_msat (type msat, sqltype INTEGER)
    • max_total_htlc_in_msat (type msat, sqltype INTEGER)
    • their_reserve_msat (type msat, sqltype INTEGER)
    • our_reserve_msat (type msat, sqltype INTEGER)
    • spendable_msat (type msat, sqltype INTEGER)
    • receivable_msat (type msat, sqltype INTEGER)
    • minimum_htlc_in_msat (type msat, sqltype INTEGER)
    • minimum_htlc_out_msat (type msat, sqltype INTEGER)
    • maximum_htlc_out_msat (type msat, sqltype INTEGER)
    • their_to_self_delay (type u32, sqltype INTEGER)
    • our_to_self_delay (type u32, sqltype INTEGER)
    • max_accepted_htlcs (type u32, sqltype INTEGER)
    • alias_local (type short_channel_id, sqltype TEXT, from JSON object alias)
    • alias_remote (type short_channel_id, sqltype TEXT, from JSON object alias)
    • related table peerchannels_state_changes
      • row (reference to peerchannels.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • timestamp (type string, sqltype TEXT)
      • old_state (type string, sqltype TEXT)
      • new_state (type string, sqltype TEXT)
      • cause (type string, sqltype TEXT)
      • message (type string, sqltype TEXT)
    • related table peerchannels_status
      • row (reference to peerchannels.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • status (type string, sqltype TEXT)
    • in_payments_offered (type u64, sqltype INTEGER)
    • in_offered_msat (type msat, sqltype INTEGER)
    • in_payments_fulfilled (type u64, sqltype INTEGER)
    • in_fulfilled_msat (type msat, sqltype INTEGER)
    • out_payments_offered (type u64, sqltype INTEGER)
    • out_offered_msat (type msat, sqltype INTEGER)
    • out_payments_fulfilled (type u64, sqltype INTEGER)
    • out_fulfilled_msat (type msat, sqltype INTEGER)
    • related table peerchannels_htlcs
      • row (reference to peerchannels.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • direction (type string, sqltype TEXT)
      • id (type u64, sqltype INTEGER)
      • amount_msat (type msat, sqltype INTEGER)
      • expiry (type u32, sqltype INTEGER)
      • payment_hash (type hash, sqltype BLOB)
      • local_trimmed (type boolean, sqltype INTEGER)
      • status (type string, sqltype TEXT)
      • state (type string, sqltype TEXT)
    • close_to_addr (type string, sqltype TEXT)
    • last_tx_fee_msat (type msat, sqltype INTEGER)
    • direction (type u32, sqltype INTEGER)

  • peers indexed by id (see lightning-listpeers(7))

    • id (type pubkey, sqltype BLOB)
    • connected (type boolean, sqltype INTEGER)
    • related table peers_netaddr
      • row (reference to peers.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • netaddr (type string, sqltype TEXT)
    • remote_addr (type string, sqltype TEXT)
    • features (type hex, sqltype BLOB)

  • sendpays indexed by payment_hash (see lightning-listsendpays(7))

    • id (type u64, sqltype INTEGER)
    • groupid (type u64, sqltype INTEGER)
    • partid (type u64, sqltype INTEGER)
    • payment_hash (type hash, sqltype BLOB)
    • status (type string, sqltype TEXT)
    • amount_msat (type msat, sqltype INTEGER)
    • destination (type pubkey, sqltype BLOB)
    • created_at (type u64, sqltype INTEGER)
    • amount_sent_msat (type msat, sqltype INTEGER)
    • label (type string, sqltype TEXT)
    • bolt11 (type string, sqltype TEXT)
    • description (type string, sqltype TEXT)
    • bolt12 (type string, sqltype TEXT)
    • payment_preimage (type secret, sqltype BLOB)
    • erroronion (type hex, sqltype BLOB)

  • transactions indexed by hash (see lightning-listtransactions(7))

    • hash (type txid, sqltype BLOB)
    • rawtx (type hex, sqltype BLOB)
    • blockheight (type u32, sqltype INTEGER)
    • txindex (type u32, sqltype INTEGER)
    • locktime (type u32, sqltype INTEGER)
    • version (type u32, sqltype INTEGER)
    • related table transactions_inputs
      • row (reference to transactions.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • txid (type txid, sqltype BLOB)
      • idx (type u32, sqltype INTEGER, from JSON field index)
      • sequence (type u32, sqltype INTEGER)
      • type (type string, sqltype TEXT)
      • channel (type short_channel_id, sqltype TEXT)
    • related table transactions_outputs
      • row (reference to transactions.rowid, sqltype INTEGER)
      • arrindex (index within array, sqltype INTEGER)
      • idx (type u32, sqltype INTEGER, from JSON field index)
      • amount_msat (type msat, sqltype INTEGER)
      • scriptPubKey (type hex, sqltype BLOB)
      • type (type string, sqltype TEXT)
      • channel (type short_channel_id, sqltype TEXT)

RETURN VALUE

On success, an object containing rows is returned. It is an array. Each array entry contains an array of values, each an integer, real number, string or null, depending on the sqlite3 type.

The object may contain warning_db_failure if the database fails partway through its operation.

On failure, an error is returned.

AUTHOR

Rusty Russell <rusty@rustcorp.com.au> is mainly responsible.

SEE ALSO

lightning-listtransactions(7), lightning-listchannels(7), lightning-listpeers(7), lightning-listnodes(7), lightning-listforwards(7).

RESOURCES

Main web site: https://github.com/ElementsProject/lightning comment: # ( SHA256STAMP:93309f8c45ea3aa153bfd8822f2748c1254812d41a408de39bacefa292e11374)