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docs: clarify REGION_STATISTICS owned-SST semantics (nightly only) #2510

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WenyXu merged 4 commits into from
Jun 8, 2026
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docs: clarify REGION_STATISTICS owned-SST semantics (nightly only) #2510

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Copilot May 28, 2026
06c40f7
docs: clarify REGION_STATISTICS counts owned SST files
Copilot May 28, 2026
9b14d9f
docs: reorder sst_size/sst_num bullets to match table column order
Copilot Jun 5, 2026
0d73509
docs: revert version-1.0 region-statistics changes, keep nightly only
Copilot Jun 8, 2026
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8 changes: 4 additions & 4 deletions docs/reference/sql/information-schema/region-statistics.md
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Expand Up @@ -38,14 +38,14 @@ Fields in the `REGION_STATISTICS` table are described as follows:
- `region_id`: The ID of the Region.
- `table_id`: The ID of the table.
- `region_number`: The number of the region in the table.
- `region_rows`: The number of rows in the region.
- `region_rows`: The number of rows in the region. It includes rows in SST files owned by this region and rows in memtables. Rows from SST files referenced from other regions are not counted.
- `written_bytes_since_open`: The number of bytes written to the region since the region was opened.
- `disk_size`: The total size of data files in the region, including data, index and metadata etc.
- `memtable_size`: The region's total size of memtables.
- `manifest_size`: The region's total size of manifest files.
- `sst_num`: The region's total number of SST files.
- `sst_size`: The region's total size of SST files.
- `index_size`: The region's total size of index files.
- `sst_size`: The region's total size of SST files owned by this region. SST files referenced from other regions are not counted.
- `sst_num`: The region's total number of SST files owned by this region. SST files referenced from other regions are not counted.
- `index_size`: The region's total size of index files owned by this region. SST index files referenced from other regions are not counted.
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- `engine`: The engine type of the region, `mito` or `metric`.
- `region_role`: The region's role, `Leader` or `Follower`.
Retrieve a table's region statistics information as follows:
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8 changes: 4 additions & 4 deletions ...ugin-content-docs/current/reference/sql/information-schema/region-statistics.md
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Expand Up @@ -38,14 +38,14 @@ DESC REGION_STATISTICS;
- `region_id`: Region 的 ID。
- `table_id`: 表的 ID。
- `region_number`: Region 在表中的编号。
- `region_rows`: Region 中的记录行数。
- `region_rows`: Region 中的记录行数。它包括该 Region 自有 SST 文件中的行数以及 memtable 中的行数，不包含引用其他 Region SST 文件中的行数。
- `written_bytes_since_open`: Region 自打开以来写入的字节数。
- `disk_size`: Region 中数据文件的总大小，包括数据、索引及元信息等。
- `memtable_size`: Region 中内存 memtables 的总大小。
- `manifest_size`: Region 中元信息 manifest 文件的总大小。
- `sst_num`: Region 中 SST 文件的总数量。
- `sst_size`: Region 中 SST 文件的总大小。
- `index_size`: Region 中索引文件的总大小。
- `sst_size`: Region 自有 SST 文件的总大小，不包含引用其他 Region 的 SST 文件。
- `sst_num`: Region 自有 SST 文件的总数量，不包含引用其他 Region 的 SST 文件。
- `index_size`: Region 自有索引文件的总大小，不包含引用其他 Region 的 SST 索引文件。
- `engine`: Region 的引擎类型，可以是 `mito` 或 `metric`。
- `region_role`: Region 的角色，可以是 `Leader` 或 `Follower`。

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