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Commits on Apr 14, 2017

• [SPARK-20318][SQL] Use Catalyst type for min/max in ColumnStat for ease of estimation

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Commits on Apr 5, 2017

• [SPARK-20223][SQL] Fix typo in tpcds q77.sql

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Commits on Apr 1, 2017

• [SPARK-20186][SQL] BroadcastHint should use child's stats

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Commits on Mar 28, 2017

• [SPARK-20124][SQL] Join reorder should keep the same order of final project attributes

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• [SPARK-20094][SQL] Preventing push down of IN subquery to Join operator

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Commits on Mar 27, 2017

• [SPARK-20104][SQL] Don't estimate IsNull or IsNotNull predicates for non-leaf node

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Commits on Mar 21, 2017

• [SPARK-17080][SQL][FOLLOWUP] Improve documentation, change buildJoin method structure and add a debug log

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• [SPARK-20010][SQL] Sort information is lost after sort merge join

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Commits on Mar 20, 2017

• [SPARK-19994][SQL] Wrong outputOrdering for right/full outer smj

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Commits on Mar 18, 2017

• [SPARK-19915][SQL] Exclude cartesian product candidates to reduce the search space

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Commits on Mar 8, 2017

• [SPARK-17080][SQL] join reorder

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Commits on Mar 7, 2017

• [SPARK-17075][SQL][FOLLOWUP] fix filter estimation issues

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• [SPARK-19350][SQL] Cardinality estimation of Limit and Sample

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Commits on Feb 24, 2017

• [SPARK-17078][SQL] Show stats when explain

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Commits on Feb 15, 2017

• [SPARK-17076][SQL] Cardinality estimation for join based on basic column statistics

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Commits on Jan 20, 2017

• [SPARK-19271][SQL] Change non-cbo estimation of aggregate

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Commits on Jan 11, 2017

• [SPARK-19132][SQL] Add test cases for row size estimation and aggregate estimation

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• [SPARK-19149][SQL] Unify two sets of statistics in LogicalPlan

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Commits on Jan 9, 2017

• [SPARK-19020][SQL] Cardinality estimation of aggregate operator

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• [SPARK-17077][SQL] Cardinality estimation for project operator

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Commits on Jan 3, 2017

• [SPARK-18998][SQL] Add a cbo conf to switch between default statistics and estimated statistics

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Commits on Dec 24, 2016

• [SPARK-18911][SQL] Define CatalogStatistics to interact with metastore and convert it to Statistics in relations

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Commits on Dec 11, 2016

• [SPARK-18815][SQL] Fix NPE when collecting column stats for string/binary column having only null values

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Commits on Nov 29, 2016

• [SPARK-18429][SQL] implement a new Aggregate for CountMinSketch

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Commits on Nov 25, 2016

• [SPARK-18559][SQL] Fix HLL++ with small relative error

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Commits on Nov 1, 2016

• [SPARK-18111][SQL] Wrong ApproximatePercentile answer when multiple records have the minimum value

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Commits on Oct 14, 2016

• [SPARK-17073][SQL][FOLLOWUP] generate column-level statistics

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Commits on Oct 3, 2016

• [SPARK-17073][SQL] generate column-level statistics

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Commits on Sep 22, 2016

• [SPARK-17625][SQL] set expectedOutputAttributes when converting SimpleCatalogRelation to LogicalRelation

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Commits on Sep 5, 2016

• [SPARK-17072][SQL] support table-level statistics generation and storing into/loading from metastore

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Commits on Nov 5, 2015

• [SPARK-11398] [SQL] unnecessary def dialectClassName in HiveContext, and misleading dialect conf at the start of spark-sql

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