103 lines
3.5 KiB
Go
103 lines
3.5 KiB
Go
package deltas
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import (
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"context"
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"database/sql"
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"fmt"
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"github.com/lib/pq"
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)
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var renameTableMappings = map[string]string{
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"account_accounts": "userapi_accounts",
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"account_data": "userapi_account_datas",
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"device_devices": "userapi_devices",
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"account_e2e_room_keys": "userapi_key_backups",
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"account_e2e_room_keys_versions": "userapi_key_backup_versions",
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"login_tokens": "userapi_login_tokens",
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"open_id_tokens": "userapi_openid_tokens",
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"account_profiles": "userapi_profiles",
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"account_threepid": "userapi_threepids",
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}
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var renameSequenceMappings = map[string]string{
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"device_session_id_seq": "userapi_device_session_id_seq",
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"account_e2e_room_keys_versions_seq": "userapi_key_backup_versions_seq",
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}
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var renameIndicesMappings = map[string]string{
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"device_localpart_id_idx": "userapi_device_localpart_id_idx",
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"e2e_room_keys_idx": "userapi_key_backups_idx",
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"e2e_room_keys_versions_idx": "userapi_key_backups_versions_idx",
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"account_e2e_room_keys_versions_idx": "userapi_key_backup_versions_idx",
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"login_tokens_expiration_idx": "userapi_login_tokens_expiration_idx",
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"account_threepid_localpart": "userapi_threepid_idx",
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}
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// I know what you're thinking: you're wondering "why doesn't this use $1
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// and pass variadic parameters to ExecContext?" — the answer is because
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// PostgreSQL doesn't expect the table name to be specified as a substituted
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// argument in that way so it results in a syntax error in the query.
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func UpRenameTables(ctx context.Context, tx *sql.Tx) error {
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for old, new := range renameTableMappings {
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q := fmt.Sprintf(
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"ALTER TABLE IF EXISTS %s RENAME TO %s;",
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pq.QuoteIdentifier(old), pq.QuoteIdentifier(new),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("rename table %q to %q error: %w", old, new, err)
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}
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}
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for old, new := range renameSequenceMappings {
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q := fmt.Sprintf(
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"ALTER SEQUENCE IF EXISTS %s RENAME TO %s;",
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pq.QuoteIdentifier(old), pq.QuoteIdentifier(new),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("rename table %q to %q error: %w", old, new, err)
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}
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}
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for old, new := range renameIndicesMappings {
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q := fmt.Sprintf(
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"ALTER INDEX IF EXISTS %s RENAME TO %s;",
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pq.QuoteIdentifier(old), pq.QuoteIdentifier(new),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("rename table %q to %q error: %w", old, new, err)
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}
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}
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return nil
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}
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func DownRenameTables(ctx context.Context, tx *sql.Tx) error {
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for old, new := range renameTableMappings {
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q := fmt.Sprintf(
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"ALTER TABLE IF EXISTS %s RENAME TO %s;",
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pq.QuoteIdentifier(new), pq.QuoteIdentifier(old),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("rename table %q to %q error: %w", new, old, err)
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}
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}
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for old, new := range renameSequenceMappings {
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q := fmt.Sprintf(
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"ALTER SEQUENCE IF EXISTS %s RENAME TO %s;",
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pq.QuoteIdentifier(new), pq.QuoteIdentifier(old),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("rename table %q to %q error: %w", new, old, err)
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}
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}
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for old, new := range renameIndicesMappings {
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q := fmt.Sprintf(
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"ALTER INDEX IF EXISTS %s RENAME TO %s;",
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pq.QuoteIdentifier(new), pq.QuoteIdentifier(old),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("rename table %q to %q error: %w", new, old, err)
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}
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}
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return nil
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}
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