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add debug sql in maintenance from 2091
1 parent 1a24c74 commit 2ffb3ef

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Lines changed: 705 additions & 15 deletions

‎src/UserGuide/Master/Table/User-Manual/Maintenance-commands_apache.md‎

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@@ -667,4 +667,46 @@ Terminate all queries:
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```SQL
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IoTDB> KILL ALL QUERIES;
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```
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```
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## 6. Query Debugging
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### 6.1 DEBUG SQL
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**Definition**: Add the `DEBUG` keyword at the beginning of an SQL query statement. During execution, debug logs will be output, including the underlying file scan information involved in the query.
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> Supported since V2.0.9-beta
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#### Syntax:
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```sql
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debugSQLStatement
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: DEBUG ? query
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;
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```
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**Description**:
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* Log output path: `logs/log_datanode_query_debug.log`
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#### Example:
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1. Execute the following SQL for DEBUG query
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```sql
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DEBUG SELECT * FROM table3;
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```
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2. Check the log content in `log_datanode_query_debug.log` to view the file scan information involved in the query.
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```bash
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2026-03-24 10:10:41,515 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.t.TsFileResource:1098 - Path: table3.d1 file /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2864/1769139940009-1-0-0.tsfile is not satisfied because of no device!
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2026-03-24 10:10:41,515 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.t.TsFileResource:1098 - Path: table3.d1 file /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2865/1769139940010-1-0-0.tsfile is not satisfied because of no device!
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2026-03-24 10:10:41,516 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:159 - Cache miss: table3.d1. in file: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile
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2026-03-24 10:10:41,516 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:160 - Device: table3.d1, all sensors: [, temperature]
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.BloomFilterCache:110 - get bloomFilter from cache where filePath is: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:227 - Get timeseries: table3.d1. metadata in file: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile from cache: TimeseriesMetadata{timeSeriesMetadataType=-128, chunkMetaDataListDataSize=8, measurementId='', dataType=VECTOR, statistics=startTime: 1747065600001 endTime: 1747065601002 count: 2, modified=false, isSeq=true, chunkMetadataList=[measurementId: , datatype: VECTOR, version: 0, Statistics: startTime: 1747065600001 endTime: 1747065601002 count: 2, deleteIntervalList: null]}.
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:227 - Get timeseries: table3.d1.temperature metadata in file: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile from cache: TimeseriesMetadata{timeSeriesMetadataType=64, chunkMetaDataListDataSize=8, measurementId='temperature', dataType=FLOAT, statistics=startTime: 1747065600001 endTime: 1747065601002 count: 2 [minValue:85.0,maxValue:90.0,firstValue:90.0,lastValue:85.0,sumValue:175.0], modified=false, isSeq=true, chunkMetadataList=[measurementId: temperature, datatype: FLOAT, version: 0, Statistics: startTime: 1747065600001 endTime: 1747065601002 count: 2 [minValue:85.0,maxValue:90.0,firstValue:90.0,lastValue:85.0,sumValue:175.0], deleteIntervalList: null]}.
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:110 - Modifications size is 1 for file Path: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:114 - []
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:125 - After modification Chunk meta data list is:
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:126 - org.apache.tsfile.file.metadata.TableDeviceChunkMetadata@2e11291f
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.ChunkCache:167 - get chunk from cache whose key is: ChunkCacheKey{filePath='/home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile', regionId=4, timePartitionId=2888, tsFileVersion=1, compactionVersion=0, offsetOfChunkHeader=19}
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.ChunkCache:167 - get chunk from cache whose key is: ChunkCacheKey{filePath='/home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile', regionId=4, timePartitionId=2888, tsFileVersion=1, compactionVersion=0, offsetOfChunkHeader=46}
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2026-03-24 10:10:41,519 [pool-69-IoTDB-ClientRPC-Processor-1$20260324_021041_00068_1] INFO o.a.i.d.q.p.Coordinator:902 - debug select * from table3
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```

‎src/UserGuide/Master/Table/User-Manual/Maintenance-commands_timecho.md‎

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IoTDB> FLUSH test_db TRUE ON LOCAL;
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```
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## 4. Data Repair
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### 4.1 Starting Background Scan and Repair of TsFiles
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```SQL
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IoTDB> KILL ALL QUERIES;
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```
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```
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## 6. Query Debugging
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### 6.1 DEBUG SQL
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**Definition**: Add the `DEBUG` keyword at the beginning of an SQL query statement. During execution, debug logs will be output, including the underlying file scan information involved in the query.
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> Supported since V2.0.9
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#### Syntax:
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```sql
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debugSQLStatement
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: DEBUG ? query
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;
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```
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**Description**:
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* Log output path: `logs/log_datanode_query_debug.log`
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#### Example:
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1. Execute the following SQL for DEBUG query
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```sql
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DEBUG SELECT * FROM table3;
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```
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2. Check the log content in `log_datanode_query_debug.log` to view the file scan information involved in the query.
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```bash
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2026-03-24 10:10:41,515 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.t.TsFileResource:1098 - Path: table3.d1 file /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2864/1769139940009-1-0-0.tsfile is not satisfied because of no device!
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2026-03-24 10:10:41,515 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.t.TsFileResource:1098 - Path: table3.d1 file /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2865/1769139940010-1-0-0.tsfile is not satisfied because of no device!
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2026-03-24 10:10:41,516 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:159 - Cache miss: table3.d1. in file: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile
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2026-03-24 10:10:41,516 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:160 - Device: table3.d1, all sensors: [, temperature]
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.BloomFilterCache:110 - get bloomFilter from cache where filePath is: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:227 - Get timeseries: table3.d1. metadata in file: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile from cache: TimeseriesMetadata{timeSeriesMetadataType=-128, chunkMetaDataListDataSize=8, measurementId='', dataType=VECTOR, statistics=startTime: 1747065600001 endTime: 1747065601002 count: 2, modified=false, isSeq=true, chunkMetadataList=[measurementId: , datatype: VECTOR, version: 0, Statistics: startTime: 1747065600001 endTime: 1747065601002 count: 2, deleteIntervalList: null]}.
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:227 - Get timeseries: table3.d1.temperature metadata in file: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile from cache: TimeseriesMetadata{timeSeriesMetadataType=64, chunkMetaDataListDataSize=8, measurementId='temperature', dataType=FLOAT, statistics=startTime: 1747065600001 endTime: 1747065601002 count: 2 [minValue:85.0,maxValue:90.0,firstValue:90.0,lastValue:85.0,sumValue:175.0], modified=false, isSeq=true, chunkMetadataList=[measurementId: temperature, datatype: FLOAT, version: 0, Statistics: startTime: 1747065600001 endTime: 1747065601002 count: 2 [minValue:85.0,maxValue:90.0,firstValue:90.0,lastValue:85.0,sumValue:175.0], deleteIntervalList: null]}.
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2026-03-24 10:10:41,517 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:110 - Modifications size is 1 for file Path: /home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:114 - []
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:125 - After modification Chunk meta data list is:
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskAlignedChunkMetadataLoader:126 - org.apache.tsfile.file.metadata.TableDeviceChunkMetadata@2e11291f
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.ChunkCache:167 - get chunk from cache whose key is: ChunkCacheKey{filePath='/home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile', regionId=4, timePartitionId=2888, tsFileVersion=1, compactionVersion=0, offsetOfChunkHeader=19}
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2026-03-24 10:10:41,518 [Query-Worker-Thread-0$20260324_021041_00068_1.1.0.0] INFO o.a.i.d.s.b.ChunkCache:167 - get chunk from cache whose key is: ChunkCacheKey{filePath='/home/iotdb/timechodb/data/datanode/data/sequence/database1/4/2888/1774247880109-1-0-0.tsfile', regionId=4, timePartitionId=2888, tsFileVersion=1, compactionVersion=0, offsetOfChunkHeader=46}
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2026-03-24 10:10:41,519 [pool-69-IoTDB-ClientRPC-Processor-1$20260324_021041_00068_1] INFO o.a.i.d.q.p.Coordinator:902 - debug select * from table3
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```

‎src/UserGuide/Master/Tree/User-Manual/Maintenance-commands_apache.md‎

Lines changed: 39 additions & 1 deletion
Original file line numberDiff line numberDiff line change
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```SQL
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IoTDB> KILL ALL QUERIES;
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```
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```
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## 6. Query Debugging
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### 6.1 DEBUG SQL
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**Definition**: Add the `DEBUG` keyword at the beginning of an SQL query statement. During execution, debug logs will be output, including underlying file scan information involved in the query.
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> Supported since V2.0.9-beta
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#### Syntax:
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```sql
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debugSQLStatement
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: DEBUG ? query
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;
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```
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**Description**:
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* Log output directory: `logs/log_datanode_query_debug.log`
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#### Example:
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1. Execute the following SQL for a DEBUG query
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```sql
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DEBUG SELECT * FROM root.ln.**;
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```
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2. Check the log content in `log_datanode_query_debug.log` to view the file scan information involved in the query.
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```bash
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2026-03-24 10:06:18,755 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:159 - Cache miss: root.ln.wf01.wt01.temperature in file: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile
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2026-03-24 10:06:18,757 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:160 - Device: root.ln.wf01.wt01, all sensors: [temperature]
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2026-03-24 10:06:18,758 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.BloomFilterCache:110 - get bloomFilter from cache where filePath is: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:227 - Get timeseries: root.ln.wf01.wt01.temperature metadata in file: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile from cache: TimeseriesMetadata{timeSeriesMetadataType=0, chunkMetaDataListDataSize=8, measurementId='temperature', dataType=DOUBLE, statistics=startTime: 1773824951259 endTime: 1773824951259 count: 1 [minValue:12.9,maxValue:12.9,firstValue:12.9,lastValue:12.9,sumValue:12.9], modified=false, isSeq=true, chunkMetadataList=[measurementId: temperature, datatype: DOUBLE, version: 0, Statistics: startTime: 1773824951259 endTime: 1773824951259 count: 1 [minValue:12.9,maxValue:12.9,firstValue:12.9,lastValue:12.9,sumValue:12.9], deleteIntervalList: null]}.
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskChunkMetadataLoader:97 - Modifications size is 0 for file Path: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskChunkMetadataLoader:109 - After modification Chunk meta data list is:
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskChunkMetadataLoader:110 - measurementId: temperature, datatype: DOUBLE, version: 0, Statistics: startTime: 1773824951259 endTime: 1773824951259 count: 1 [minValue:12.9,maxValue:12.9,firstValue:12.9,lastValue:12.9,sumValue:12.9], deleteIntervalList: null
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2026-03-24 10:06:18,760 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.ChunkCache:167 - get chunk from cache whose key is: ChunkCacheKey{filePath='/home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile', regionId=13, timePartitionId=2932, tsFileVersion=1, compactionVersion=0, offsetOfChunkHeader=27}
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2026-03-24 10:06:18,761 [pool-69-IoTDB-ClientRPC-Processor-1$20260324_020618_00052_1] INFO o.a.i.d.q.p.Coordinator:902 - debug select * from root.ln.**
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```

‎src/UserGuide/Master/Tree/User-Manual/Maintenance-commands_timecho.md‎

Lines changed: 39 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -574,4 +574,42 @@ Terminate all queries:
574574

575575
```SQL
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IoTDB> KILL ALL QUERIES;
577-
```
577+
```
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579+
## 6. Query Debugging
580+
581+
### 6.1 DEBUG SQL
582+
583+
**Definition**: Add the `DEBUG` keyword at the beginning of an SQL query statement. During execution, debug logs will be output, including underlying file scan information involved in the query.
584+
585+
> Supported since V2.0.9
586+
587+
#### Syntax:
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```sql
589+
debugSQLStatement
590+
: DEBUG ? query
591+
;
592+
```
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**Description**:
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* Log output directory: `logs/log_datanode_query_debug.log`
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#### Example:
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1. Execute the following SQL for a DEBUG query
599+
```sql
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DEBUG SELECT * FROM root.ln.**;
601+
```
602+
603+
2. Check the log content in `log_datanode_query_debug.log` to view the file scan information involved in the query.
604+
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```bash
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2026-03-24 10:06:18,755 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:159 - Cache miss: root.ln.wf01.wt01.temperature in file: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile
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2026-03-24 10:06:18,757 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:160 - Device: root.ln.wf01.wt01, all sensors: [temperature]
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2026-03-24 10:06:18,758 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.BloomFilterCache:110 - get bloomFilter from cache where filePath is: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.TimeSeriesMetadataCache:227 - Get timeseries: root.ln.wf01.wt01.temperature metadata in file: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile from cache: TimeseriesMetadata{timeSeriesMetadataType=0, chunkMetaDataListDataSize=8, measurementId='temperature', dataType=DOUBLE, statistics=startTime: 1773824951259 endTime: 1773824951259 count: 1 [minValue:12.9,maxValue:12.9,firstValue:12.9,lastValue:12.9,sumValue:12.9], modified=false, isSeq=true, chunkMetadataList=[measurementId: temperature, datatype: DOUBLE, version: 0, Statistics: startTime: 1773824951259 endTime: 1773824951259 count: 1 [minValue:12.9,maxValue:12.9,firstValue:12.9,lastValue:12.9,sumValue:12.9], deleteIntervalList: null]}.
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskChunkMetadataLoader:97 - Modifications size is 0 for file Path: /home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskChunkMetadataLoader:109 - After modification Chunk meta data list is:
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2026-03-24 10:06:18,759 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.d.r.r.c.m.DiskChunkMetadataLoader:110 - measurementId: temperature, datatype: DOUBLE, version: 0, Statistics: startTime: 1773824951259 endTime: 1773824951259 count: 1 [minValue:12.9,maxValue:12.9,firstValue:12.9,lastValue:12.9,sumValue:12.9], deleteIntervalList: null
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2026-03-24 10:06:18,760 [Query-Worker-Thread-3$20260324_020618_00052_1.1.0.0] INFO o.a.i.d.s.b.ChunkCache:167 - get chunk from cache whose key is: ChunkCacheKey{filePath='/home/iotdb/timechodb/data/datanode/data/sequence/root.ln/13/2932/1773824951611-1-0-0.tsfile', regionId=13, timePartitionId=2932, tsFileVersion=1, compactionVersion=0, offsetOfChunkHeader=27}
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2026-03-24 10:06:18,761 [pool-69-IoTDB-ClientRPC-Processor-1$20260324_020618_00052_1] INFO o.a.i.d.q.p.Coordinator:902 - debug select * from root.ln.**
615+
```

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