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| 22 | +# Apache IoTDB 2.0.6 |
| 23 | + |
| 24 | +## Features & Improvements |
| 25 | +- Data Query: Supports table model query and write-back functions. |
| 26 | +- Data Query: The MATCH RECOGNIZE feature for table models supports aggregate functions to capture continuous data for analysis and calculation. |
| 27 | +- Data Query: Added built-in scalar functions – bit manipulation functions for table models. |
| 28 | +- Data Query: Added pushdown-enabled EXTRACT time function for table models. |
| 29 | +- Others: Fixed security vulnerabilities CVE-2025-12183,CVE-2025-66566 and CVE-2025-11226. |
| 30 | +- ... |
| 31 | +## Bugs |
| 32 | +- Fixed the issue where executing queries with CASE WHEN throws an internal server error. |
| 33 | +- Fixed the issue where creating a view succeeds but querying the view fails when the tree model database name is the same as the device name in tree-to-table scenarios. |
| 34 | +- Fixed the issue where the automatic database creation function fails subsequently if a database is deleted after successful table model data synchronization, and the database is not restarted. |
| 35 | +- Fixed the issue where modifying the password of a user that failed to be created throws an internal server error. |
| 36 | +- Fixed the issue where an error is thrown when using the IF PERMITTED clause to modify sequence encoding and compression settings. |
| 37 | +- Fixed the issue where querying BLOB data types via the tree model RESTAPI interface /rest/v2/query returns garbled results. |
| 38 | +- Fixed the issue where incorrect exception information is displayed when checking pipe status after creating a pipe in a table model that only contains tree-to-table views. |
| 39 | +- Fixed the issue where the number of server connections keeps increasing when using a user without MAINTAIN permission (non-root user in table models) in a Session. |
| 40 | +- ... |
| 41 | + |
| 42 | +# Apache IoTDB 2.0.5 |
| 43 | + |
| 44 | +## Features & Improvements |
| 45 | +- Data Query: Support manual creation of tree-to-table views |
| 46 | +- Data Query: Table model adds window functions |
| 47 | +- Data Query: Table model adds the aggregate function approx_most_frequent |
| 48 | +- Data Query: Table model JOIN function expansion, supporting LEFT & RIGHT JOIN, ASOF LEFT JOIN |
| 49 | +- Data Query: Table model supports row pattern recognition, enabling capture of continuous data for analysis and calculation |
| 50 | +- Storage Management: Table model adds multiple system tables, such as: VIEWS (table view information), MODELS (model information), etc. |
| 51 | +- AI Management: AINode adds two built-in models: Timer-XL and Timer-Sundial |
| 52 | +- AI Management: AINode supports inference functions for tree models and table models |
| 53 | +- ... |
| 54 | + |
| 55 | +## Bugs |
| 56 | +- Fixed the issue where the where time > X and time < X in last query was not applied to partitioned table fetching, failing to hit PartitionCache |
| 57 | +- Fixed the error in aggregate query with order by time + align by device for single device across regions |
| 58 | +- Fixed the error in aggregate query with order by time + align by device for multiple devices across regions |
| 59 | +- Data synchronization batching supports sink.batch.max-delay-ms, providing more fine-grained cache time control |
| 60 | +- Fixed the potential NPE issue when the tablet contains null values during data synchronization with sink format=tsfile |
| 61 | +- Fixed the incorrect processing result of pipe processor when writing tablets with null values with duplicate timestamps |
| 62 | +- Fixed the issue of tree model load updating table model schema cache |
| 63 | +- Fixed the issue where disruptor queue close could not be completed, which might cause the DN stop script to get stuck |
| 64 | +- Fixed multiple issues of data synchronization in normal scenarios, restart scenarios, and deletion scenarios |
| 65 | +- Fixed the time formatting issue when exporting table model to csv |
| 66 | +- ... |
| 67 | + |
22 | 68 | # Apache IoTDB 2.0.4 |
23 | 69 |
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24 | 70 | ## Features & Improvements |
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