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Optimize JVM columnar-to-row conversion
enhancementNew feature or requestNew feature or requestStatus: Open.#5119 In apache/datafusion-comet;Use Spark ResourceProfiles to give native and JVM stages independent memory configs
enhancementNew feature or requestNew feature or requestStatus: Open.#5116 In apache/datafusion-comet;Native columnar-to-row conversion is much slower than the JVM implementation for small batches
enhancementNew feature or requestNew feature or requestStatus: Open.#5112 In apache/datafusion-comet;Add support for SampleExec (DataFrame.sample, TABLESAMPLE, randomSplit)
enhancementNew feature or requestNew feature or requestStatus: Open.#5109 In apache/datafusion-comet;[EPIC] Replace hand-rolled native code with existing arrow-rs kernels
good first issueGood for newcomersGood for newcomersStatus: Open.#5104 In apache/datafusion-comet;Consolidate date/timestamp truncation and xxhash64 with upstream DataFusion implementations
enhancementNew feature or requestNew feature or requestStatus: Open.#5103 In apache/datafusion-comet;rlike: consider arrow regexp_is_match kernel and fix non-StringArray panic
enhancementNew feature or requestNew feature or requestStatus: Open.#5102 In apache/datafusion-comet;Use arrow make_comparator for nested structural equality in arrays_overlap and array_position
enhancementNew feature or requestNew feature or requestStatus: Open.#5101 In apache/datafusion-comet;list_extract: replace per-row MutableArrayData gather with take and zip
enhancementNew feature or requestNew feature or requestStatus: Open.#5100 In apache/datafusion-comet;size: compute list sizes with the arrow length kernel
enhancementNew feature or requestNew feature or requestStatus: Open.#5099 In apache/datafusion-comet;sum_int: use arrow sum kernels and collapse integer type dispatch
enhancementNew feature or requestNew feature or requestStatus: Open.#5098 In apache/datafusion-comet;cast_map_to_map drops entries null buffer and ignores target sorted flag
bugSomething isn't workingSomething isn't workingStatus: Open.#5097 In apache/datafusion-comet;