Add APPROX_COUNT_DISTINCT Function#15338

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JackieTien97 merged 18 commits intoapache:masterfrom

FearfulTomcat27:approx_count_distinct

Apr 25, 2025

Commits on Apr 17, 2025

Add APPROX_COUNT_DISTINCT IT
FearfulTomcat27
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Commits on Apr 24, 2025

fix: Checksum Approx_count_distinct The second argument must be a Numberic constant.
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fix: Add HyperLogLogBigArray and delete unused class
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fix: Modify the type validation of the second parameter for Approx_count_distinct
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fix: Fix calculation errors in Approx_count_distinct when different data partitions are involved
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fix: Add approx_count_distinct in GROUP BY situation for IT.
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fix: Optimize HyperLogLog merging and state management in ApproxCountDistinct
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fix: Remove unused constructors and initial value handling in BinaryBigArray and MapBigArray
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fix: Refactor ApproxCountDistinctAccumulator and related classes for improved max standard error handling
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fix: Improve variable initialization and documentation formatting in ApproxCountDistinctAccumulator and HyperLogLog
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fix: Clean up code by removing unnecessary print statements and simplifying reset methods in ApproxCountDistinctAccumulator and GroupedApproxCountDistinctAccumulator
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fix: Fix the issue where HyperLogLogBigArray does not update sizeOfHyperLogLog when creating a new instance using get.
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fix: Update SQL queries in IoTDBTableAggregationIT to order results by province and time
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