V0.0.9

Welcome to Kùzu 0.0.9! In this release, we've introduced following main improvements and features:

• Supported LOAD FROM, which directly evaluate queries over CSV/Parquet files without loading into database.
• Replaced the beginReadTransaction(), beginWriteTransaction(), commit() and rollback() APIs in all language bindings with cypher statements.
• Supported comments on tables.
• Expand recursive rel pattern and enables projection on intermediate nodes and rels.
• Introduced CREATE REL GROUP.
• Introduced a set of new data types (e.g., INT8, UINT64, UINT32, UINT16, UINT8) and related casting functions.
• Replaced arrow's CSV and Parquet reader with new customized one.
• Introduced bitpacking compression for integers.

As always, we have more details in our blog post. Enjoy your reading!

What's Changed

• Refactor order by compilation by @andyfengHKU in #1971
• Implement #1959 by @mewim in #1974
• Remove currIdx from DataChunkState by @andyfengHKU in #1966
• Add snap amazon and twitter for copy tests by @ray6080 in #1969
• Reader function refactor by @acquamarin in #1979
• Skip reading null data if the property is known to have no nulls by @benjaminwinger in #1945
• Add CREATE RDF GRAPH ddl statement by @andyfengHKU in #1984
• Reader compilation refactor by @andyfengHKU in #1985
• Fix aggregate rel bug by @andyfengHKU in #1987
• Expression Constant Folding by @andyfengHKU in #1989
• configure CI workflow for Ubuntu 20.04 LTS by @russell-liu in #1991
• Move CopyRel to query processing pipeline by @ray6080 in #1990
• Change copy morsel size back to DEFAULT_VECTOR_CAPACITY by @acquamarin in #1992
• share build cache when building rust API and the example project by @russell-liu in #1995
• Log errors for serializer by @mewim in #1998
• Fix issue 1915 by @ray6080 in #2001
• Implement csv reader by @acquamarin in #1988
• Fix test logging level by @acquamarin in #1997
• Support defining multiple FROM TO in CREATE REL TABLE GROUP by @andyfengHKU in #2009
• Transaction statement by @andyfengHKU in #2012
• Remove blocks counting in copying rel pipeline by @ray6080 in #2013
• Add arrow feature to rust example so that it can re-use the test build in CI by @benjaminwinger in #2002
• Split catalog table schemas by @andyfengHKU in #2020
• Add test cases match3/4 and new feature "--" by @AEsir777 in #2016
• Add INT8 type by @Ashleyhx in #1994
• Update README.md by @semihsalihoglu-uw in #2024
• Rel group query by @andyfengHKU in #2023
• Add turtle file type, refactor copy compilation by @andyfengHKU in #2026
• Arrow schema fixes by @benjaminwinger in #2019
• Fix cmake configuration by @yixinglu in #2022
• Implement Commenting on Tables by @Riolku in #2011
• Implement copy node rdf by @acquamarin in #2028
• finish range literal [*] [2] [..] [2..] [..2] by @AEsir777 in #2027
• Add int8 supported functions by @Ashleyhx in #2030
• Refactor exception.h by @Riolku in #2006
• Remove types_include.h by @Riolku in #2008
• Fix create node on empty table by @acquamarin in #2034
• Splitup value.h by @Riolku in #2025
• Don't self-initialize schema comments by @benjaminwinger in #2038
• Upgrade ANTLR4 runtime by @Riolku in #2040
• Add include guards to all headers by @Riolku in #2042
• Add win32 access violation handler to buffer manager by @benjaminwinger in #2035
• Transaction test rewrite by @hououou in #2029
• Implement copy rdf rel table by @acquamarin in #2033
• Solve issue-1983 by @andyfengHKU in #2044
• Refactor copy compilation by @andyfengHKU in #2043
• Replace CopyDescription with CSVReaderConfig for storage classes. by @andyfengHKU in #2046
• Rename logical operator dir by @ray6080 in #2047
• allow node bound to include 0 [*0..4] by @AEsir777 in #2041
• Support Parquet filetype on COPY TO by @rfdavid in #1893
• Refactor reader functors by @andyfengHKU in #2049
• Rewrite transaction test by @hououou in #2053
• Refactor node table to take in columnID instead of propertyID by @ray6080 in #2054
• Use a different schema for each RecordBatch in python getAsArrow by @benjaminwinger in #2055
• Restructure storage directory by @ray6080 in #2056
• Expose rel label for Python and Node.js API by @mewim in #2060
• add unsigned int types by @Ashleyhx in #2045
• Load from csv by @andyfengHKU in #2052
• range() function by @AEsir777 in #2058
• Allow dev version of Python wheels to be built and published by @mewim in #2066
• Rename logicalScanNode to logicalScanInternalID by @andyfengHKU in #2067
• Add abstraction of TableData by @ray6080 in #2072
• Rework table statistics ser/deser by @ray6080 in #2073
• Move metadataDAHInfo from catalog to statistics by @ray6080 in #2074
• Reorganize stat files by @ray6080 in #2075
• Copy FROM brackets have optional whitespace by @OTooleMichael in #2078
• Abstract Compression interface and initial integer packing by @benjaminwinger in #2004
• Rdf predicate iri processing by @andyfengHKU in #2071
• Implement parquet-reader by @acquamarin in #2076
• Remove arrow from npy reader by @acquamarin in #2086
• Add direct scan on parquet by @andyfengHKU in #2088
• Bitpack VAR_LIST offset data by @benjaminwinger in #2084
• Fix bounds check in integer bitpacking by @benjaminwinger in #2091
• Fix warning by @acquamarin in #2094
• Fix list reader bug by @acquamarin in #2090
• Add direct scan npy, add where predicate in LOAD FROM by @andyfengHKU in #2093
• Refactor ALTER statement by @andyfengHKU in #2097
• miniparquet: Define HAVE_STDINT_H by @Riolku in #2101
• finish list_product by @AEsir777 in #2069
• Add DDL to rel group by @andyfengHKU in #2103
• Fix add-prop by @acquamarin in #2100
• Int8 and Int16 bitpacking by @benjaminwinger in #2085
• Clean up arrow code in node column chunk and copy node by @ray6080 in #2104
• Fix copy to csv by @acquamarin in #2108
• Fix update bugs by @ray6080 in #2098
• reader: implement parallel CSV reading by @Riolku in #2070
• reader: remove moved constant from Parallel CSV by @Riolku in #2110
• copy: use string_view to avoid a copy by @Riolku in #2112
• add numerical types for APIs by @Ashleyhx in #2105
• add castString in functions by @AEsir777 in #2092
• upload benchmark copy query times to benchmark server by @russell-liu in #2099
• Change slot capacity by @ray6080 in #2111
• Add overflow check for casting by @acquamarin in #2114
• reader/csv: Use binary mode on Windows by @Riolku in #2121
• Explicit exports by @benjaminwinger in #2118
• Fix map creation by @ray6080 in #2113
• Recursive join projection push down by @andyfengHKU in #2120
• reader/csv: sniff column name and type by @Riolku in #2116
• finish cast to bool by @AEsir777 in #2119
• Add load from with headers by @andyfengHKU in #2123
• Add Linux aarch64 build pipelines by @mewim in #2122
• Add documentation example to test by @andyfengHKU in #2125
• Fix table function by @acquamarin in #2127
• Fix recurrsive join test by @acquamarin in #2128
• Add enable_semi_mask option by @acquamarin in #2129
• Inline generated export headers by @benjaminwinger in #2124
• Ignore imports and exports in the static rust build by @benjaminwinger in #2130
• try fix header by @andyfengHKU in #2131
• Update begin trasaction syntax by @ray6080 in #2126
• improve recursive join projection by @andyfengHKU in #2132
• Optional Compression by @benjaminwinger in #2102
• Remove function exports/imports for inlined Value functions by @benjaminwinger in #2134
• Fix non-bundled rust build by @benjaminwinger in #2133
• Bump version to v0.0.9 by @ray6080 in #2135

New Contributors

• @russell-liu made their first contribution in #1991
• @AEsir777 made their first contribution in #2016
• @Ashleyhx made their first contribution in #1994
• @yixinglu made their first contribution in #2022
• @Riolku made their first contribution in #2011
• @hououou made their first contribution in #2029
• @OTooleMichael made their first contribution in #2078

Full Changelog: v0.0.8...v0.0.9