mirror of https://github.com/citusdata/citus.git
42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
To see the list of features and bug-fixes planned for next releases, see our
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[development roadmap][roadmap].
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Requested Features
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------------------
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* Improve write performance
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* Improve read performance
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* Add checksum logic
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* Add new compression methods
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* Enable INSERT/DELETE/UPDATE
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* Enable users other than superuser to safely create columnar tables (permissions)
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* Transactional semantics
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* Add config setting to make pg\_fsync() optional
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Known Issues
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------------
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* Copy command ignores NOT NULL constraints.
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* Planning functions don't take into account average column width.
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* Planning functions don't correctly take into account block skipping benefits.
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* On 32-bit platforms, when file size is outside the 32-bit signed range, EXPLAIN
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command prints incorrect file size.
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* If two different columnar tables are configured to point to the same file,
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writes to the underlying file aren't protected from each other.
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* When a data load is in progress, concurrent reads on the table overestimate the
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page count.
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* We have a minor memory leak in CStoreEndWrite. We need to also free the
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comparisonFunctionArray.
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* block\_filtering test fails on Ubuntu because the "da\_DK" locale is not enabled
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by default.
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* We don't yet incorporate the compression method's impact on disk I/O into cost
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estimates.
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* CitusDB integration errors:
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* Concurrent staging cstore\_fdw tables doesn't work.
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* Setting a default value for column with ALTER TABLE has limited support for
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existing rows.
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[roadmap]: https://github.com/citusdata/cstore_fdw/wiki/Roadmap
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