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| package swodb |
|
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| import ( |
| "context" |
|
|
| "github.com/jackc/pgx/v5/pgtype" |
| ) |
|
|
| const activeTxCount = `-- name: ActiveTxCount :one |
| SELECT COUNT(*) |
| FROM pg_stat_activity |
| WHERE "state" <> 'idle' |
| AND "xact_start" <= $1 |
| ` |
|
|
| func (q *Queries) ActiveTxCount(ctx context.Context, xactStart pgtype.Timestamptz) (int64, error) { |
| row := q.db.QueryRow(ctx, activeTxCount, xactStart) |
| var count int64 |
| err := row.Scan(&count) |
| return count, err |
| } |
|
|
| const connectionInfo = `-- name: ConnectionInfo :many |
| SELECT application_name AS NAME, |
| COUNT(*) |
| FROM pg_stat_activity |
| WHERE datname = current_database() |
| GROUP BY NAME |
| ` |
|
|
| type ConnectionInfoRow struct { |
| Name pgtype.Text |
| Count int64 |
| } |
|
|
| func (q *Queries) ConnectionInfo(ctx context.Context) ([]ConnectionInfoRow, error) { |
| rows, err := q.db.Query(ctx, connectionInfo) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
| var items []ConnectionInfoRow |
| for rows.Next() { |
| var i ConnectionInfoRow |
| if err := rows.Scan(&i.Name, &i.Count); err != nil { |
| return nil, err |
| } |
| items = append(items, i) |
| } |
| if err := rows.Err(); err != nil { |
| return nil, err |
| } |
| return items, nil |
| } |
|
|
| const databaseInfo = `-- name: DatabaseInfo :one |
| SELECT db_id AS id, |
| version() |
| FROM switchover_state |
| ` |
|
|
| type DatabaseInfoRow struct { |
| ID pgtype.UUID |
| Version string |
| } |
|
|
| func (q *Queries) DatabaseInfo(ctx context.Context) (DatabaseInfoRow, error) { |
| row := q.db.QueryRow(ctx, databaseInfo) |
| var i DatabaseInfoRow |
| err := row.Scan(&i.ID, &i.Version) |
| return i, err |
| } |
|
|
| const disableChangeLogTriggers = `-- name: DisableChangeLogTriggers :exec |
| UPDATE switchover_state |
| SET current_state = 'idle' |
| WHERE current_state = 'in_progress' |
| ` |
|
|
| func (q *Queries) DisableChangeLogTriggers(ctx context.Context) error { |
| _, err := q.db.Exec(ctx, disableChangeLogTriggers) |
| return err |
| } |
|
|
| const enableChangeLogTriggers = `-- name: EnableChangeLogTriggers :exec |
| UPDATE switchover_state |
| SET current_state = 'in_progress' |
| WHERE current_state = 'idle' |
| ` |
|
|
| func (q *Queries) EnableChangeLogTriggers(ctx context.Context) error { |
| _, err := q.db.Exec(ctx, enableChangeLogTriggers) |
| return err |
| } |
|
|
| const foreignKeyRefs = `-- name: ForeignKeyRefs :many |
| SELECT src.relname::text, |
| dst.relname::text |
| FROM pg_catalog.pg_constraint con |
| JOIN pg_catalog.pg_namespace ns ON ns.nspname = 'public' |
| AND ns.oid = con.connamespace |
| JOIN pg_catalog.pg_class src ON src.oid = con.conrelid |
| JOIN pg_catalog.pg_class dst ON dst.oid = con.confrelid |
| WHERE con.contype = 'f' |
| AND NOT con.condeferrable |
| ` |
|
|
| type ForeignKeyRefsRow struct { |
| SrcRelname string |
| DstRelname string |
| } |
|
|
| func (q *Queries) ForeignKeyRefs(ctx context.Context) ([]ForeignKeyRefsRow, error) { |
| rows, err := q.db.Query(ctx, foreignKeyRefs) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
| var items []ForeignKeyRefsRow |
| for rows.Next() { |
| var i ForeignKeyRefsRow |
| if err := rows.Scan(&i.SrcRelname, &i.DstRelname); err != nil { |
| return nil, err |
| } |
| items = append(items, i) |
| } |
| if err := rows.Err(); err != nil { |
| return nil, err |
| } |
| return items, nil |
| } |
|
|
| const lastLogID = `-- name: LastLogID :one |
| SELECT COALESCE(MAX(id), 0)::bigint |
| FROM switchover_log |
| ` |
|
|
| func (q *Queries) LastLogID(ctx context.Context) (int64, error) { |
| row := q.db.QueryRow(ctx, lastLogID) |
| var column_1 int64 |
| err := row.Scan(&column_1) |
| return column_1, err |
| } |
|
|
| const logEvents = `-- name: LogEvents :many |
| SELECT id, |
| TIMESTAMP, |
| DATA |
| FROM switchover_log |
| WHERE id > $1 |
| ORDER BY id ASC |
| LIMIT 100 |
| ` |
|
|
| func (q *Queries) LogEvents(ctx context.Context, id int64) ([]SwitchoverLog, error) { |
| rows, err := q.db.Query(ctx, logEvents, id) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
| var items []SwitchoverLog |
| for rows.Next() { |
| var i SwitchoverLog |
| if err := rows.Scan(&i.ID, &i.Timestamp, &i.Data); err != nil { |
| return nil, err |
| } |
| items = append(items, i) |
| } |
| if err := rows.Err(); err != nil { |
| return nil, err |
| } |
| return items, nil |
| } |
|
|
| const now = `-- name: Now :one |
| SELECT now()::timestamptz |
| ` |
|
|
| func (q *Queries) Now(ctx context.Context) (pgtype.Timestamptz, error) { |
| row := q.db.QueryRow(ctx, now) |
| var column_1 pgtype.Timestamptz |
| err := row.Scan(&column_1) |
| return column_1, err |
| } |
|
|
| const sWOConnLock = `-- name: SWOConnLock :one |
| WITH LOCK AS ( |
| SELECT |
| pg_advisory_lock_shared(4369)) |
| SELECT |
| current_state = 'use_next_db' |
| FROM |
| LOCK, |
| switchover_state |
| ` |
|
|
| func (q *Queries) SWOConnLock(ctx context.Context) (bool, error) { |
| row := q.db.QueryRow(ctx, sWOConnLock) |
| var column_1 bool |
| err := row.Scan(&column_1) |
| return column_1, err |
| } |
|
|
| const sWOConnUnlockAll = `-- name: SWOConnUnlockAll :exec |
| SELECT |
| pg_advisory_unlock_all() |
| ` |
|
|
| func (q *Queries) SWOConnUnlockAll(ctx context.Context) error { |
| _, err := q.db.Exec(ctx, sWOConnUnlockAll) |
| return err |
| } |
|
|
| const sequenceNames = `-- name: SequenceNames :many |
| SELECT sequence_name::text |
| FROM information_schema.sequences |
| WHERE sequence_catalog = current_database() |
| AND sequence_schema = 'public' |
| AND sequence_name != 'change_log_id_seq' |
| ` |
|
|
| func (q *Queries) SequenceNames(ctx context.Context) ([]string, error) { |
| rows, err := q.db.Query(ctx, sequenceNames) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
| var items []string |
| for rows.Next() { |
| var sequence_name string |
| if err := rows.Scan(&sequence_name); err != nil { |
| return nil, err |
| } |
| items = append(items, sequence_name) |
| } |
| if err := rows.Err(); err != nil { |
| return nil, err |
| } |
| return items, nil |
| } |
|
|
| const tableColumns = `-- name: TableColumns :many |
| SELECT col.table_name::text, |
| col.column_name::text, |
| col.data_type::text, |
| col.ordinal_position::INT |
| FROM information_schema.columns col |
| JOIN information_schema.tables t ON t.table_catalog = col.table_catalog |
| AND t.table_schema = col.table_schema |
| AND t.table_name = col.table_name |
| AND t.table_type = 'BASE TABLE' |
| WHERE col.table_catalog = current_database() |
| AND col.table_schema = 'public' |
| ` |
|
|
| type TableColumnsRow struct { |
| ColTableName string |
| ColColumnName string |
| ColDataType string |
| ColOrdinalPosition int32 |
| } |
|
|
| func (q *Queries) TableColumns(ctx context.Context) ([]TableColumnsRow, error) { |
| rows, err := q.db.Query(ctx, tableColumns) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
| var items []TableColumnsRow |
| for rows.Next() { |
| var i TableColumnsRow |
| if err := rows.Scan( |
| &i.ColTableName, |
| &i.ColColumnName, |
| &i.ColDataType, |
| &i.ColOrdinalPosition, |
| ); err != nil { |
| return nil, err |
| } |
| items = append(items, i) |
| } |
| if err := rows.Err(); err != nil { |
| return nil, err |
| } |
| return items, nil |
| } |
|
|