store: Don't set limit for GetRegionsInfoByRange function (#45556)

[ti-chi-bot]

This is an automated cherry-pick of #45556

What problem does this PR solve?

Issue Number: close #45531

Problem Summary:

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

mysql> select tidb_table_id from information_schema.tables where table_schema='test' and table_name='t1';
+---------------+
| tidb_table_id |
+---------------+
|            96 |
+---------------+
1 row in set (0.01 sec)

mysql> select region_id, is_index, start_key from information_schema.tikv_region_status where table_id = 96;
+-----------+----------+--------------------------------------------------------+
| region_id | is_index | start_key                                              |
+-----------+----------+--------------------------------------------------------+
|       154 |        0 | 7480000000000000FF605F720173000000FF0000000000000000FB |
|       160 |        0 | 7480000000000000FF605F720176000000FF0000000000000000FB |
|       162 |        0 | 7480000000000000FF605F720177000000FF0000000000000000FB |
|       118 |        1 | 7480000000000000FF6000000000000000F8                   |
|       118 |        0 | 7480000000000000FF6000000000000000F8                   |
|       124 |        0 | 7480000000000000FF605F720164000000FF0000000000000000FB |
|       140 |        0 | 7480000000000000FF605F72016C000000FF0000000000000000FB |
|       142 |        0 | 7480000000000000FF605F72016D000000FF0000000000000000FB |
|       156 |        0 | 7480000000000000FF605F720174000000FF0000000000000000FB |
|       130 |        0 | 7480000000000000FF605F720167000000FF0000000000000000FB |
|       134 |        0 | 7480000000000000FF605F720169000000FF0000000000000000FB |
|       138 |        0 | 7480000000000000FF605F72016B000000FF0000000000000000FB |
|       144 |        0 | 7480000000000000FF605F72016E000000FF0000000000000000FB |
|       136 |        0 | 7480000000000000FF605F72016A000000FF0000000000000000FB |
|       146 |        0 | 7480000000000000FF605F72016F000000FF0000000000000000FB |
|       150 |        0 | 7480000000000000FF605F720171000000FF0000000000000000FB |
|        22 |        0 | 7480000000000000FF605F720179000000FF0000000000000000FB |
|       132 |        0 | 7480000000000000FF605F720168000000FF0000000000000000FB |
|       148 |        0 | 7480000000000000FF605F720170000000FF0000000000000000FB |
|       152 |        0 | 7480000000000000FF605F720172000000FF0000000000000000FB |
|       158 |        0 | 7480000000000000FF605F720175000000FF0000000000000000FB |
|       120 |        0 | 7480000000000000FF605F720162000000FF0000000000000000FB |
|       122 |        0 | 7480000000000000FF605F720163000000FF0000000000000000FB |
|       126 |        0 | 7480000000000000FF605F720165000000FF0000000000000000FB |
|       128 |        0 | 7480000000000000FF605F720166000000FF0000000000000000FB |
|       164 |        0 | 7480000000000000FF605F720178000000FF0000000000000000FB |
+-----------+----------+--------------------------------------------------------+
26 rows in set (0.01 sec)

mysql> select region_id, is_index, start_key from information_schema.tikv_region_status where db_name = 'test' and table_name = 't1';
+-----------+----------+--------------------------------------------------------+
| region_id | is_index | start_key                                              |
+-----------+----------+--------------------------------------------------------+
|       140 |        0 | 7480000000000000FF605F72016C000000FF0000000000000000FB |
|        22 |        0 | 7480000000000000FF605F720179000000FF0000000000000000FB |
|       120 |        0 | 7480000000000000FF605F720162000000FF0000000000000000FB |
|       122 |        0 | 7480000000000000FF605F720163000000FF0000000000000000FB |
|       130 |        0 | 7480000000000000FF605F720167000000FF0000000000000000FB |
|       158 |        0 | 7480000000000000FF605F720175000000FF0000000000000000FB |
|       162 |        0 | 7480000000000000FF605F720177000000FF0000000000000000FB |
|       134 |        0 | 7480000000000000FF605F720169000000FF0000000000000000FB |
|       146 |        0 | 7480000000000000FF605F72016F000000FF0000000000000000FB |
|       156 |        0 | 7480000000000000FF605F720174000000FF0000000000000000FB |
|       164 |        0 | 7480000000000000FF605F720178000000FF0000000000000000FB |
|       132 |        0 | 7480000000000000FF605F720168000000FF0000000000000000FB |
|       150 |        0 | 7480000000000000FF605F720171000000FF0000000000000000FB |
|       124 |        0 | 7480000000000000FF605F720164000000FF0000000000000000FB |
|       144 |        0 | 7480000000000000FF605F72016E000000FF0000000000000000FB |
|       126 |        0 | 7480000000000000FF605F720165000000FF0000000000000000FB |
|       152 |        0 | 7480000000000000FF605F720172000000FF0000000000000000FB |
|       160 |        0 | 7480000000000000FF605F720176000000FF0000000000000000FB |
|       136 |        0 | 7480000000000000FF605F72016A000000FF0000000000000000FB |
|       148 |        0 | 7480000000000000FF605F720170000000FF0000000000000000FB |
|       118 |        1 | 7480000000000000FF6000000000000000F8                   |
|       118 |        0 | 7480000000000000FF6000000000000000F8                   |
|       142 |        0 | 7480000000000000FF605F72016D000000FF0000000000000000FB |
|       154 |        0 | 7480000000000000FF605F720173000000FF0000000000000000FB |
|       128 |        0 | 7480000000000000FF605F720166000000FF0000000000000000FB |
|       138 |        0 | 7480000000000000FF605F72016B000000FF0000000000000000FB |
+-----------+----------+--------------------------------------------------------+

• 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

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@b852d16). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #45572   +/-   ##
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  Coverage               ?   73.4299%           
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  Files                  ?       1080           
  Lines                  ?     346657           
  Branches               ?          0           
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  Hits                   ?     254550           
  Misses                 ?      75662           
  Partials               ?      16445           

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, xhebox

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-07-26 02:25:20.753875441 +0000 UTC m=+321263.348406424: ☑️ agreed by xhebox.
• 2023-07-26 02:28:49.411474742 +0000 UTC m=+321472.006005715: ☑️ agreed by Defined2014.