storage: Add keyspace_id to DT system tables

[Lloyd-Pottiger]

What problem does this PR solve?

Issue Number: ref #9032

Problem Summary:

What is changed and how it works?

Add a keyspace_id field, so that TiDB could query TiFlash system tables over it.

mapper.displayDatabaseName is used in some other places so that it is unchanged.

TiFlash :) select * from dt_segments where keyspace_id=4

SELECT *
FROM dt_segments
WHERE keyspace_id = 4

Ok.

0 rows in set. Elapsed: 0.107 sec.

TiFlash :) select * from dt_segments where keyspace_id=1

SELECT *
FROM dt_segments
WHERE keyspace_id = 1

┌─database──┬─table─────┬─tidb_database─┬─tidb_table─┬─keyspace_id─┬─table_id─┬─is_tombstone─┬─segment_id─┬─range──────────────────────────────────────┬─epoch─┬──rows─┬──────size─┬─delta_rate─┬─delta_memtable_rows─┬─delta_memtable_size─┬─delta_memtable_column_files─┬─delta_memtable_delete_ranges─┬─delta_persisted_page_id─┬─delta_persisted_rows─┬─delta_persisted_size─┬─delta_persisted_column_files─┬─delta_persisted_delete_ranges─┬─delta_cache_size─┬─delta_index_size─┬─stable_page_id─┬─stable_rows─┬─stable_size─┬─stable_dmfiles─┬─stable_dmfiles_id_0─┬─stable_dmfiles_rows─┬─stable_dmfiles_size─┬─stable_dmfiles_size_on_disk─┬─stable_dmfiles_packs─┐
│ ks_1_db_2 │ ks_1_t_96 │ test          │ sample     │           1 │       96 │            0 │          1 │ [-9223372036854775808,9223372036854775807) │     5 │ 60000 │ 189900000 │          0 │                   0 │                   0 │                           0 │                            0 │                      42 │                    0 │                    0 │                            0 │                             0 │                0 │             2032 │             43 │       60000 │   189900000 │              1 │                 105 │               60000 │           189900000 │                    53891161 │                    8 │
└───────────┴───────────┴───────────────┴────────────┴─────────────┴──────────┴──────────────┴────────────┴────────────────────────────────────────────┴───────┴───────┴───────────┴────────────┴─────────────────────┴─────────────────────┴─────────────────────────────┴──────────────────────────────┴─────────────────────────┴──────────────────────┴──────────────────────┴──────────────────────────────┴───────────────────────────────┴──────────────────┴──────────────────┴────────────────┴─────────────┴─────────────┴────────────────┴─────────────────────┴─────────────────────┴─────────────────────┴─────────────────────────────┴──────────────────────┘

1 rows in set. Elapsed: 0.006 sec.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[JaySon-Huang]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: breezewish, JaySon-Huang

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-08-27 01:47:21.088187042 +0000 UTC m=+834836.222637163: ☑️ agreed by JaySon-Huang.
• 2024-08-27 02:27:42.993371271 +0000 UTC m=+837258.127821389: ☑️ agreed by breezewish.

[Lloyd-Pottiger]

/retest