Apache Calcite 1.6.0 发布，此版本的主要更新内容如下： [CALCITE-816] Represent sub-query as a RexNode [CALCITE-854] Implement UNNEST ... WITH ORDINALITY [CALCITE-1003] Utility to convert RelNode to SQL (Amogh Margoor) [CALCITE-1010]FETCH/LIMIT and OFFSET in RelToSqlConverter (Amogh Margoor) Move code from JdbcImplementor and JdbcRules to new classSqlImplementor Deduce dialect’s null collation from DatabaseMetaData Fix RelToSqlConverterTest on Windows Following [CALCITE-897], empty string for boolean properties means true [CALCITE-992] Validate and resolve sequence reference as a Table object [CALCITE-968] Stream-to-relation and stream-to-stream joins (Milinda Pathirage) [CALCITE-1041] User-defined function that returns DATE or TIMESTAMP value [CALCITE-986] User-defined function with DATE or TIMESTAMP parameters [CALCITE-958] Overloaded Table Functions with named arguments (Julien Le Dem) [CALCITE-970] If NULLS FIRST/NULLS LAST not specified, sort NULL values high Avatica features and bug fixes [CALCITE-1040] Differentiate better between arrays and scalars in protobuf [CALCITE-934] Use an OS-assigned ephemeral port for CalciteRemoteDriverTest [CALCITE-767] Create Avatica RPC endpoints for commit and rollback commands [CALCITE-983] Handle nulls in ErrorResponse’s protobuf representation better [CALCITE-989] Add server’s address in each response Fix some bugs found by static analysis Make all equals and hashCode methods uniform [CALCITE-962] Propagate the cause, not just the cause’s message, from JdbcMeta Planner rules [CALCITE-1057] Add RelMetadataProvider parameter to standard planner Programs [CALCITE-1055]SubQueryRemoveRule should create Correlate, not Join, for correlated sub-queries [CALCITE-978] Enable customizing constant folding rule behavior when a Filter simplifies to false (Jason Altekruse) [CALCITE-977] Make the constant expression Executor configurable in FrameworkConfig(Jason Altekruse) [CALCITE-1058] Add method RelBuilder.empty, and rewrite LIMIT 0 and WHERE FALSE to it [CALCITE-996] Simplify predicate when we create a Filter operator Simplify RexProgram, in particular (NOT CASE ... END) IS TRUE, which occurs in when NOT IN is expanded Fix variant of [CALCITE-923] that occurs in RelOptRulesTest.testPushFilterPastProject [CALCITE-1023] and [CALCITE-1038] Planner rule that removes Aggregate keys that are constant [CALCITE-1018]SortJoinTransposeRule not firing due to getMaxRowCount(RelSubset) returning null [CALCITE-1019]RelMdUtil.checkInputForCollationAndLimit() was wrong with alreadySortedcheck Not safe to use ‘=’ for predicates on constant expressions that might be null [CALCITE-993] Pull up all constant expressions, not just literals, as predicates [CALCITE-1005] Handle null in getMaxRowCount for Aggregate (Mike Hinchey) [CALCITE-995] Sort transpose rules might fall in an infinite loop [CALCITE-987] Pushing LIMIT 0 results in an infinite loop (Pengcheng Xiong) [CALCITE-988]FilterToProjectUnifyRule.invert(MutableRel, MutableRel, MutableProject)works incorrectly [CALCITE-969] Composite EnumerableSort with DESC wrongly sorts NULL values low [CALCITE-959] Add description to SortProjectTransposeRule’s constructor Bug fixes, API changes and minor enhancements [CALCITE-1060] Fix test deadlock by initializing DriverManager before registering AlternatingDriver [CALCITE-1047]ChunkList.clear throws AssertionError [CALCITE-1053] CPU spin, ReflectiveRelMetadataProvider.apply waiting for HashMap.get Upgrade toolbox, to fix line length issue on Windows [CALCITE-1051] Underflow exception due to scaling IN clause literals (Frankie Bollaert) [CALCITE-975] Allow Planner to return validated row type together with SqlNode [CALCITE-1020] Add MILLISECOND in TimeUnit (Pengcheng Xiong) [CALCITE-794] Detect cycles when computing statistics (This is a breaking change.) Tune algorithm that deduces the return type of AND expression [CALCITE-842] Decorrelator gets field offsets confused if fields have been trimmed Fix NullPointerException in SqlJoin.toString() Add ImmutableBitSet.rebuild() [CALCITE-915] Tests now unset ThreadLocal values on exit [CALCITE-1036]DiffRepository should not insert new resources at the end of the repository [CALCITE-955]Litmus (continuation-passing style for methods that check invariants) RelBuilder.project now does nothing if asked to project the identity with the same field names Deprecate some Util methods, and upgrade last Maven modules to JDK 1.7 Document RelOptPredicateList Add ImmutableNullableList.copyOf(Iterable) Fix “endPosTable already set” error from javac Add benchmark of Parser.create(sql).parseQuery() [CALCITE-1042] Ensure that FILTER is BOOLEAN NOT NULL [CALCITE-1039] Assign a SqlKind value for each built-in aggregate function [CALCITE-1030] JSON ModelHandler calling SchemaPlus.setCacheEnabled() causesUnsupportedOperationException when using SimpleCalciteSchema [CALCITE-1028] Move populate materializations after sql-to-rel conversion [CALCITE-1034] Use a custom checker for code style rules that Checkstyle cannot express [CALCITE-1032] Verify javadoc of private methods [CALCITE-1015]OFFSET 0 causes AssertionError (Zhen Wang) [CALCITE-1024] In a planner test, if a rule should have no effect, state that explicitly [CALCITE-1016]GROUP BY *constant* on empty relation should return 0 rows [CALCITE-1022] Rename .oq Quidem files to .iq [CALCITE-980] Fix AND and OR implementation in Enumerable convention [CALCITE-459] When parsing SQL, allow single line comment on last line (Zhen Wang) [CALCITE-1009]SelfPopulatingList is not thread-safe [CALCITE-1008] Replace Closeable with AutoCloseable [CALCITE-1001] Upgrade to quidem-0.7 [CALCITE-990] In VolcanoPlanner, populate RelOptRuleCall.nodeInputs for operands of type “any” [CALCITE-966]VolcanoPlanner now clears ruleNames in order to avoid rule name conflicting error Factor user-defined function tests from JdbcTest to UdfTest, and classes into Smalls [CALCITE-974] Exception while validating DELETE (Yuri Au Yong) [CALCITE-964] Rename timezone connection property to timeZone Web site and documentation Avatica [CALCITE-1033] Introduce Avatica protobuf documentation [CALCITE-1029] Add “purpose” descriptions to Avatica JSON docs [CALCITE-984] Massive cleanup of Avatica JSON docs [CALCITE-861] Be explicit that mvn test needs to be invoked [CALCITE-997] Document keywords [CALCITE-979] Broken links in web site [CALCITE-961] Web site: Add downloads and Apache navigation links [CALCITE-960] Download links for pgp, md5, KEYS files, and direct from mirrors Remove embedded date-stamps from javadoc; add javadoc for test classes [CALCITE-965] Link to downloads page from each release news item 详情请看：发行说明 下载地址：这里 Apache Calcite 1.6.0 发布，动态数据管理框架下载地址
