| 2026Q1 | - Storage: batch tag modification, dynamic adjustment of last cache LRU
- Query: subqueries, external windows, ANY/SOME/ALL/EXISTS operators, window and interpolation enhancements, Explain and Show Queries optimization
- Virtual Tables: virtual tables support referencing virtual tables, virtual table query performance optimization, subscription to virtual table metadata changes
- Stream: triggering by natural week/month/quarter/year, event trigger condition optimization, grouped computation performance optimization, virtual supertable triggering supports child table additions/deletions/modifications
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| 2026Q2 | - Storage: multi-replica leader switching and node recovery optimization, last cache optimization (such as forced refresh, multi-column write optimization, specified column caching)
- Query: join queries, relaxed window query restrictions, time windows support week/month/quarter/year, Interp performance improvement
- Functions: window functions and OVER clause
- Virtual Tables: support for virtual table inheritance, virtual supertable column name modification
- Stream: performance optimization for multiple customer scenarios, performance optimization for multi-measurement point scenarios, historical computation performance optimization, virtual table triggering performance optimization
- Others: TDgpt predictive maintenance, minute-level timezone support
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| 2026Q3 | - Query: complex query performance optimization, scalar correlated subqueries, cumulative windows, further enhancement of join queries, SQL testing tools
- Functions: 15 customer-requested functions
- Virtual Tables: subscription to virtual table data through continuous queries
- Stream: maintainability improvement
- Others: TDgpt supports PCA, PLS, cluster analysis
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| 2026Q4 | - TEXT data type, variable-length string data type, database name modification, column name modification
- Query: query parallelization, addition of observability metrics
- Functions: support for MySQL operators and functions, UDF function framework refactoring
- Others: engine CPU and memory management
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