Alter column and timeseries datatype with ANSI SQL statement #16027
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# Conflicts: # iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/consensus/request/ConfigPhysicalPlanType.java # pom.xml
# Conflicts: # integration-test/src/main/java/org/apache/iotdb/it/env/cluster/config/MppDataNodeConfig.java # integration-test/src/main/java/org/apache/iotdb/it/env/remote/config/RemoteDataNodeConfig.java # integration-test/src/main/java/org/apache/iotdb/itbase/env/DataNodeConfig.java # iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/ProcedureManager.java # iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/schema/table/column/TsTableColumnSchema.java # pom.xml
# Conflicts: # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/AstVisitor.java
# Conflicts: # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/AlignedWritableMemChunk.java
# Conflicts: # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/execution/config/TableConfigTaskVisitor.java
# Conflicts: # integration-test/src/test/java/org/apache/iotdb/relational/it/db/it/IoTDBSetSystemStatusTableIT.java
(cherry picked from commit ea9f726)
# Conflicts: # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/modification/ModificationFile.java
# Conflicts: # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/plan/node/write/RelationalInsertRowNode.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/plan/node/write/RelationalInsertTabletNode.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/AbstractMemTable.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/AlignedWritableMemChunk.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/AlignedWritableMemChunkGroup.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/read/reader/chunk/MemAlignedPageReader.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/datastructure/AlignedTVList.java
# Conflicts: # iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/schema/ClusterSchemaManager.java # iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/persistence/schema/ClusterSchemaInfo.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/plan/node/write/RelationalInsertTabletNode.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/AlignedWritableMemChunkGroup.java # iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/WritableMemChunkGroup.java
…ccumulator query among tree and table model.
jt2594838
requested changes
Dec 30, 2025
...gration-test/src/test/java/org/apache/iotdb/relational/it/schema/IoTDBAlterColumnTypeIT.java
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...gration-test/src/test/java/org/apache/iotdb/relational/it/schema/IoTDBAlterColumnTypeIT.java
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integration-test/src/test/java/org/apache/iotdb/db/it/schema/IoTDBAlterTimeSeriesTypeIT.java
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integration-test/src/test/java/org/apache/iotdb/session/it/IoTDBSessionSchemaTemplateIT.java
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iotdb-client/session/src/main/java/org/apache/iotdb/session/Session.java
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...de/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/AbstractMemTable.java
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iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/SchemaUtils.java
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iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/SchemaUtils.java
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iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/SchemaUtils.java
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iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/datastructure/AlignedTVList.java
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…nstead of AlterTimeSeriesStatement, can resolve other alter timeseries statement can run normally.
zerolbsony
changed the title
…a type cause by AlterTimeSeriesDataTypeProcedure won't run.
Repair all accumulator query logics about TEXT、STRING、BLOB on IoTDBAlterColumnTypeIT; Remove unuseful and incorrect code
jt2594838
reviewed
Jan 5, 2026
integration-test/src/test/java/org/apache/iotdb/db/it/schema/IoTDBAlterTimeSeriesTypeIT.java
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...gration-test/src/test/java/org/apache/iotdb/relational/it/schema/IoTDBAlterColumnTypeIT.java
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.../src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/SeriesScanUtil.java
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...rg/apache/iotdb/db/queryengine/plan/execution/config/executor/ClusterConfigTaskExecutor.java
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...java/org/apache/iotdb/db/queryengine/plan/execution/config/metadata/AlterTimeSeriesTask.java
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...java/org/apache/iotdb/db/queryengine/plan/execution/config/metadata/AlterTimeSeriesTask.java
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iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/parser/ASTVisitor.java
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iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/SchemaUtils.java
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jt2594838
approved these changes
Jan 5, 2026
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CHN doc:
https://timechor.feishu.cn/docx/AugedrYLqoybsbxzgEZc2eTinTg?from=from_copylink
IoTDB> alter timeseries root.db.battery.b0.current SET DATA TYPE DOUBLE;
Msg: The statement is executed successfully.
IoTDB> show timeseries root.db.battery.b0.current;
+--------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType|
+--------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
|root.db.battery.b0.current| null| root.db| DOUBLE| GORILLA| LZ4|null| null| null| null| BASE|
+--------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
Total line number = 1
It costs 0.043s
IoTDB> alter timeseries root.db.battery.b0.current SET DATA TYPE STRING;
Msg: The statement is executed successfully.
IoTDB> show timeseries root.db.battery.b0.current;
+--------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType|
+--------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
|root.db.battery.b0.current| null| root.db| STRING| GORILLA| LZ4|null| null| null| null| BASE|
+--------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
Total line number = 1
It costs 0.009s