gotosocial/internal/db/bundb/migrations/20220305130328_database_optimizations.go

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/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package migrations
import (
"context"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/uptrace/bun"
)
func init() {
up := func(ctx context.Context, db *bun.DB) error {
return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
// ACCOUNTS are often selected by URI, username, or domain
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Account{}).
Index("accounts_uri_idx").
Column("uri").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Account{}).
Index("accounts_username_idx").
Column("username").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Account{}).
Index("accounts_domain_idx").
Column("domain").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Account{}).
Index("accounts_username_domain_idx"). // for selecting local accounts by username
Column("username", "domain").
Exec(ctx); err != nil {
return err
}
// NOTIFICATIONS are commonly selected by their target_account_id
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Notification{}).
Index("notifications_target_account_id_idx").
Column("target_account_id").
Exec(ctx); err != nil {
return err
}
// STATUSES are selected in many different ways, so we need quite few indexes
// to avoid queries becoming painfully slow as more statuses get stored
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_uri_idx").
Column("uri").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_account_id_idx").
Column("account_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_in_reply_to_account_id_idx").
Column("in_reply_to_account_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_boost_of_account_id_idx").
Column("boost_of_account_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_in_reply_to_id_idx").
Column("in_reply_to_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_boost_of_id_idx").
Column("boost_of_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_visibility_idx").
Column("visibility").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Status{}).
Index("statuses_local_idx").
Column("local").
Exec(ctx); err != nil {
return err
}
// DOMAIN BLOCKS are almost always selected by their domain
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.DomainBlock{}).
Index("domain_blocks_domain_idx").
Column("domain").
Exec(ctx); err != nil {
return err
}
// INSTANCES are usually selected by their domain
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Instance{}).
Index("instances_domain_idx").
Column("domain").
Exec(ctx); err != nil {
return err
}
// STATUS FAVES are almost always selected by their target status
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.StatusFave{}).
Index("status_faves_status_id_idx").
Column("status_id").
Exec(ctx); err != nil {
return err
}
// MENTIONS are almost always selected by their originating status
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Mention{}).
Index("mentions_status_id_idx").
Column("status_id").
Exec(ctx); err != nil {
return err
}
// FOLLOW_REQUESTS and FOLLOWS are usually selected by who they originate from, and who they target
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.FollowRequest{}).
Index("follow_requests_account_id_idx").
Column("account_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.FollowRequest{}).
Index("follow_requests_target_account_id_idx").
Column("target_account_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Follow{}).
Index("follows_account_id_idx").
Column("account_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Follow{}).
Index("follows_target_account_id_idx").
Column("target_account_id").
Exec(ctx); err != nil {
return err
}
// BLOCKS are usually selected simultaneously by who they originate from and who they target
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Block{}).
Index("blocks_account_id_target_account_id_idx").
Column("account_id", "target_account_id").
Exec(ctx); err != nil {
return err
}
// MEDIA ATTACHMENTS are often selected by status ID, the account that owns the attachment
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.MediaAttachment{}).
Index("media_attachments_status_id_idx").
Column("status_id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.MediaAttachment{}).
Index("media_attachments_account_id_idx").
Column("account_id").
Exec(ctx); err != nil {
return err
}
// for media cleanup jobs, attachments will be selected on a bunch of fields so make an index of this...
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.MediaAttachment{}).
Index("media_attachments_cleanup_idx").
Column("cached", "avatar", "header", "created_at", "remote_url").
Exec(ctx); err != nil {
return err
}
// TOKENS are usually selected via Access field for user-level tokens
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Token{}).
Index("tokens_access_idx").
Column("access").
Exec(ctx); err != nil {
return err
}
return nil
})
}
down := func(ctx context.Context, db *bun.DB) error {
return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
return nil
})
}
if err := Migrations.Register(up, down); err != nil {
panic(err)
}
}