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construct/matrix/dbs_desc.cc
2020-09-20 14:24:47 -07:00

547 lines
8.9 KiB
C++

// The Construct
//
// Copyright (C) The Construct Developers, Authors & Contributors
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
namespace ircd::m::dbs::desc
{
// Deprecated / dropped columns.
//
// These have to be retained for users that have yet to open their
// database with a newly released schema which has dropped a column
// from the schema. If the legacy descriptor is not provided here then
// the database will not know how to open the descriptor in order to
// conduct the drop.
extern const ircd::db::descriptor events_auth_events;
extern const ircd::db::descriptor events_hashes;
extern const ircd::db::descriptor events_membership;
extern const ircd::db::descriptor events_origin;
extern const ircd::db::descriptor events_prev_events;
extern const ircd::db::descriptor events_prev_state;
extern const ircd::db::descriptor events_redacts;
extern const ircd::db::descriptor events_signatures;
extern const ircd::db::descriptor events__event_auth;
extern const ircd::db::comparator events__event_auth__cmp;
extern const ircd::db::prefix_transform events__event_auth__pfx;
extern const ircd::db::descriptor events__event_bad;
extern const ircd::db::descriptor events__state_node;
//
// Required by RocksDB
//
extern const ircd::db::descriptor events__default;
};
const ircd::db::prefix_transform
ircd::m::dbs::desc::events__event_auth__pfx
{
"_event_auth",
nullptr,
nullptr,
};
const ircd::db::comparator
ircd::m::dbs::desc::events__event_auth__cmp
{
"_event_auth",
nullptr,
nullptr,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events__event_auth
{
// name
"_event_auth",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
events__event_auth__cmp,
// prefix transform
events__event_auth__pfx,
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events__event_bad
{
// name
"_event_bad",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(string_view), typeid(uint64_t)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_auth_events
{
// name
"auth_events",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_hashes
{
// name
"hashes",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_membership
{
// name
"membership",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_origin
{
// name
"origin",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_prev_events
{
// name
"prev_events",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_prev_state
{
// name
"prev_state",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(ircd::string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_redacts
{
// name
"redacts",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events_signatures
{
// name
"signatures",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(uint64_t), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events__state_node
{
// name
"_state_node",
// explanation
R"(
This column is deprecated and has been dropped from the schema. This
descriptor will erase its presence in the database upon next open.
)",
// typing (key, value)
{
typeid(ircd::string_view), typeid(ircd::string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
true,
};
const ircd::db::descriptor
ircd::m::dbs::desc::events__default
{
// name
"default",
// explanation
R"(Unused but required by the database software.
)",
// typing (key, value)
{
typeid(string_view), typeid(string_view)
},
// options
{},
// comparator
{},
// prefix transform
{},
// drop column
false,
// cache size
0_MiB,
// cache size for compressed assets
0_MiB,
// bloom filter bits
0,
// expect queries hit
false,
};
//
// Description vector
//
decltype(ircd::m::dbs::desc::events)
ircd::m::dbs::desc::events
{
// Requirement of RocksDB/LevelDB
events__default,
//
// These columns directly represent event fields indexed by event_idx
// number and the value is the actual event values. Some values may be
// JSON, like content.
//
content,
depth,
event_id,
origin_server_ts,
room_id,
sender,
state_key,
type,
//
// These columns are metadata oriented around the event data.
//
// event_id => uint64_t
// Mapping of event_id to index number.
event_idx,
// event_idx => json
// Mapping of event_idx to full json
event_json,
// event_idx | event_idx
// Reverse mapping of the event reference graph.
event_refs,
// event_idx | event_idx
// Mapping of unresolved event refs.
event_horizon,
// origin | sender, event_idx
// Mapping of senders to event_idx's they are the sender of.
event_sender,
// type | event_idx
// Mapping of type strings to event_idx's of that type.
event_type,
// state_key, type, room_id, depth, event_idx
// Mapping of event states, indexed for application features.
event_state,
// (room_id, (depth, event_idx))
// Sequence of all events for a room, ever.
room_events,
// (room_id, (type, depth, event_idx))
// Sequence of all events by type for a room.
room_type,
// (room_id, (origin, user_id))
// Sequence of all PRESENTLY JOINED joined for a room.
room_joined,
// (room_id, (type, state_key)) => (event_idx)
// Sequence of the PRESENT STATE of the room.
room_state,
// (room_id, (type, state_key, depth, event_idx))
// Sequence of all states of the room.
room_state_space,
// (room_id, event_id) => (event_idx)
// Mapping of all current head events for a room.
room_head,
//
// These columns are legacy; they have been dropped from the schema.
//
events_auth_events,
events_hashes,
events_membership,
events_origin,
events_prev_events,
events_prev_state,
events_redacts,
events_signatures,
events__event_auth,
events__event_bad,
events__state_node,
};