[CALCITE-4291] Release Calcite 1.26.0
diff --git a/README b/README
index 9ff1edb..c1d249e 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Apache Calcite release 1.25.0
+Apache Calcite release 1.26.0
This is a source or binary distribution of Apache Calcite.
diff --git a/site/_docs/history.md b/site/_docs/history.md
index ceb529d..800444f 100644
--- a/site/_docs/history.md
+++ b/site/_docs/history.md
@@ -28,16 +28,196 @@
Downloads are available on the
[downloads page]({{ site.baseurl }}/downloads/).
-## <a href="https://github.com/apache/calcite/releases/tag/calcite-1.26.0">1.26.0</a> / 2020-xx-xx
+## <a href="https://github.com/apache/calcite/releases/tag/calcite-1.26.0">1.26.0</a> / 2020-10-03
{: #v1-26-0}
-Under development.
+This release comes about two months after [1.25.0](#v1-25-0). It includes more than 70 resolved
+issues, comprising a lot of new features and bug-fixes. Among others, it is worth highlighting the following.
-Compatibility: This release is tested on Linux, MacOS, Microsoft Windows;
+* [SEARCH operator and Sarg literal](https://issues.apache.org/jira/browse/CALCITE-4173)
+* [PIVOT operator in SQL](https://issues.apache.org/jira/browse/CALCITE-3752)
+* [Spatial index based on Hilbert space-filling curve](https://issues.apache.org/jira/browse/CALCITE-1861)
+* [Provide utility to visualize RelNode](https://issues.apache.org/jira/browse/CALCITE-4197)
+* [Support JDK 15 and Guava version 29.0-jre](https://issues.apache.org/jira/browse/CALCITE-4259)
+
+Compatibility: This release is tested on Linux, macOS, Microsoft Windows;
using JDK/OpenJDK versions 8 to 15;
Guava versions 19.0 to 29.0-jre;
other software versions as specified in gradle.properties.
+#### Breaking Changes
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-2082">CALCITE-2082</a>]
+Do not store types or type factories inside operators
+
+#### New features
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4173">CALCITE-4173</a>]
+Add internal `SEARCH` operator and `Sarg` literal that represents a set of values or ranges
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-3752">CALCITE-3752</a>]
+Add `PIVOT` operator to SQL
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-1861">CALCITE-1861</a>]
+Spatial index, based on Hilbert space-filling curve
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-3920">CALCITE-3920</a>]
+Improve `ORDER BY` computation in Enumerable convention by exploiting `LIMIT` (Thomas Rebele)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4015">CALCITE-4015</a>]
+Pass through parent collation request on subset or superset of join keys for `EnumerableMergeJoin`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-3782">CALCITE-3782</a>]
+Bitwise functions `BIT_AND`, `BIT_OR` and `BIT_XOR` support binary and varbinary type (Hailong Wang)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4197">CALCITE-4197</a>]
+Provide utility to visualize `RelNode` plans (Liya Fan)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4113">CALCITE-4113</a>]
+Support `LEFT JOIN` in `EnumerableMergeJoin`
+
+#### Bug fixes, API changes and minor enhancements
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-2833">CALCITE-2833</a>]
+In JDBC adapter for Hive and BigQuery, implement `Values` by generating `SELECT` without `FROM` (Stuti Gupta)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4160">CALCITE-4160</a>]
+Add configuration (`SqlToRelConverter.Config`) to retain `ORDER BY` in sub-query (Jiatao Tao)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-3399">CALCITE-3399</a>]
+Field-pruning for set operators (except `UNION ALL`) changes query semantics (Jin Xing)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4182">CALCITE-4182</a>]
+Support materialized view recognition when query has constant filter for missing columns in `GROUP BY` list of materialized view (Wang Yanlin)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4171">CALCITE-4171</a>]
+Support named parameters for table window functions
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4167">CALCITE-4167</a>]
+Group by `COALESCE IN` throws `NullPointerException`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4172">CALCITE-4172</a>]
+Expand columnar identifiers before resolving (James Starr)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4180">CALCITE-4180</a>]
+Support for Elasticsearch basic authentication (fageiguanbing)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4241">CALCITE-4241</a>]
+Some improvements to metadata query
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4170">CALCITE-4170</a>]
+Improve simplification of `<>` predicates
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4159">CALCITE-4159</a>]
+Simplify always-true expressions (such as `LIKE '%'`) to `TRUE`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4192">CALCITE-4192</a>]
+`RelMdColumnOrigins` gets the wrong index of group by columns after `RelNode` was optimized by `AggregateProjectMergeRule` rule (FangZheng Li)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4203">CALCITE-4203</a>]
+`RelMdUniqueKeys` should not return empty when meeting `Intersect` and `Minus` if its input has unique keys
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4207">CALCITE-4207</a>]
+Validation fails for positional aggregate with `CURRENT_DATE` in `CASE` expression
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4206">CALCITE-4206</a>]
+`RelDecorrelator` outputs wrong plan for correlate sort with fetch limit
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4209">CALCITE-4209</a>]
+In `RelBuilder`, add an option to not simplify `LIMIT 0` to an empty relation
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4208">CALCITE-4208</a>]
+Improve metadata row count for `Join`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4210">CALCITE-4210</a>]
+Replaying subqueries in `ON` clauses (James Starr)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4214">CALCITE-4214</a>]
+Make `RelDataType.getSqlTypeName` non-nullable
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4217">CALCITE-4217</a>]
+Unlock `RelCrossType#getFieldCount()`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4220">CALCITE-4220</a>]
+In `SqlToRelConverter`, use `RelBuilder` for creating `Aggregate`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4226">CALCITE-4226</a>]
+Add `Mappings#asListNonNull` as a null-safe alternative for `Mappings#asList`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4237">CALCITE-4237</a>]
+`AssertionError` in `SqlTypeFactoryImpl.leastRestrictive` when running slow tests
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4254">CALCITE-4254</a>]
+`ImmutableBeans` should make an immutable copy of property values of type `List`, `Set`, or `Map`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4249">CALCITE-4249</a>]
+JDBC adapter cannot translate `NOT LIKE` in join condition
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4266">CALCITE-4266</a>]
+JDBC adapter throws `UnsupportedOperationException` if query contains range predicate on columns from sub-query
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4176">CALCITE-4176</a>]
+Key descriptor can be optional in `SESSION` table function
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4279">CALCITE-4279</a>]
+`SEARCH` operator cannot be pushed into Druid
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4280">CALCITE-4280</a>]
+Replace Guava's `Lists.transform` and `Iterables.transform` with `Util.transform`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4282">CALCITE-4282</a>]
+Promote the window table functions window attribute data type with precision 3
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4287">CALCITE-4287</a>]
+`AggregateJoinRemoveRule` and `ProjectJoinRemoveRule` are not fired if the last column of the join's left input is referenced (Liya Fan)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4238">CALCITE-4238</a>]
+Create a default parser configuration, to reduce redundant information in sub-parsers
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4289">CALCITE-4289</a>]
+Wrong signature for `SqlTumbleTableFunction`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4295">CALCITE-4295</a>]
+Composite of two checkers with `SqlOperandCountRange` throws `IllegalArgumentException` (Zhenghua Gao)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4190">CALCITE-4190</a>]
+`OR` simplification incorrectly loses term
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4195">CALCITE-4195</a>]
+Cast between types with different collators must be evaluated as not monotonic
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4200">CALCITE-4200</a>]
+`ExceptionInInitializerError` when initializing DruidRules
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4201">CALCITE-4201</a>]
+`AssertionError` when registering Druid rules due to conflict in description
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4221">CALCITE-4221</a>]
+Update stale integration tests in Druid adapter
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4239">CALCITE-4239</a>]
+`RelMdUniqueKeys` returns wrong unique keys for `Aggregate` with grouping sets
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4271">CALCITE-4271</a>]
+`RelBuilder.in` should allow duplicate values
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4258">CALCITE-4258</a>]
+`SqlToRelConverter`: `SELECT 1 IS DISTINCT FROM NULL` fails with `AssertionError`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4246">CALCITE-4246</a>]
+When parsing SQL in BigQuery dialect, allow unquoted table names to contain hyphens
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4230">CALCITE-4230</a>]
+When parsing SQL in BigQuery dialect, split quoted table names that contain dots
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4247">CALCITE-4247</a>]
+When parsing SQL in BigQuery dialect, character literals may be enclosed in single- or double-quotes, and use backslashes as escapes
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4215">CALCITE-4215</a>]
+Ensure `org.apache.calcite.schema.Statistic` uses `null` vs `emptyList` appropriately
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4227">CALCITE-4227</a>]
+`ImmutableIntList#toArray(Integer[])` should support arguments larger than the collection itself
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4228">CALCITE-4228</a>]
+`FlatLists.Flat6List#append` should not throw NPE if there are null elements in the list
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4229">CALCITE-4229</a>]
+`Add Util.throwAsRuntime` and `Util.causeOrSelf` to simplify exception re-throwing
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4269">CALCITE-4269</a>]
+Improvement on enumerable implementation for `HOP` and `SESSION`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4275">CALCITE-4275</a>]
+`EnumerableMergeJoin#create` does not set `EnumerableConvention` in the trait set
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4283">CALCITE-4283</a>]
+Do not force implement `SqlTableFunction` when creating table function scan
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4261">CALCITE-4261</a>]
+Join with three tables causes `IllegalArgumentException` in `EnumerableBatchNestedLoopJoinRule`
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4288">CALCITE-4288</a>]
+Create `SqlTypeUtil#deriveType(SqlCallBinding)` to make type computation simpler
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4216">CALCITE-4216</a>]
+Make `org.apache.calcite.rel.type.RelDataType#getFamily` non-nullable
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4298">CALCITE-4298</a>]
+Avoid disabling hostname verification on HTTPS connections
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4300">CALCITE-4300</a>]
+`EnumerableBatchNestedLoopJoin` dynamic code generation can lead to variable name issues if two EBNLJ are nested
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4224">CALCITE-4224</a>]
+Add a method for `RelNode` to output its relational expression string (Jiatao Tao)
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4248">CALCITE-4248</a>]
+Deprecate `SqlParser.ConfigBuilder`
+* Remove `ArrayList` allocation from `Mappings#bijection`, and add helpful message in case NPE is thrown
+* Improve positions in SQL validator error messages
+* Simplify `Pair.left(Iterable)` and `Pair.right(Iterable)` implementation
+* Refactor `Pair` comparison to use `Comparator.nullsFirst` and `.naturalOrder`
+* Obsolete `SqlToRelConverter.ConfigBuilder`, and refactor `SqlToRelConverterTest`
+* Refactor `SqlParserTest`
+* Minor refactoring of `DruidAdapterIT` and `DruidAdapter2IT`
+
+#### Build and test suite
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4278">CALCITE-4278</a>]
+Add Druid adapter tests in GitHub CI
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4259">CALCITE-4259</a>]
+Support JDK 15 and Guava version 29.0-jre
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4184">CALCITE-4184</a>]
+Update Gradle: 6.3 -> 6.6
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4168">CALCITE-4168</a>]
+Configure Gradle Local Build Cache
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-4185">CALCITE-4185</a>]
+Remove dependency between checkstyle and compilation tasks
+* Add `MaxMetaspaceSize=512m` to avoid metaspace issues when building Calcite
+* Make project buildable from folders that include special characters
+* Use `merge=union` strategy to avoid false merge conflicts on `CalciteResource.properties`
+* Add GC options to GitHub and Travis CI so they fail on low memory condition faster
+* Update Checkstyle from 8.27 to 8.28 to support `package-info` files with imports
+* Update `org.nosphere.apache.rat` plugin from 0.5.2 to 0.7.0, and print files with unapproved licenses to console
+
+#### Web site and documentation
+* [<a href="https://issues.apache.org/jira/browse/CALCITE-3841">CALCITE-3841</a>]
+Change downloads page to use downloads.apache.org
+* Fix documentation errors
+* Site: Add Rui Wang as committer, Ruben Quesada Lopez as PMC
+
## <a href="https://github.com/apache/calcite/releases/tag/calcite-1.25.0">1.25.0</a> / 2020-08-08
{: #v1-25-0}
@@ -51,7 +231,7 @@
* [Refactor How Planner Rules are Parameterized](https://issues.apache.org/jira/browse/CALCITE-3923)
* [Spacial Functions](https://issues.apache.org/jira/browse/CALCITE-2160)
-Compatibility: This release is tested on Linux, MacOS, Microsoft Windows;
+Compatibility: This release is tested on Linux, macOS, Microsoft Windows;
using Oracle JDK 8, 9, 10, 11, 12, 13, 14 and OpenJDK 8, 9, 10, 11, 12, 13, 14;
Guava versions 19.0 to 28.2-jre; other software versions as specified in
gradle.properties.
diff --git a/site/_docs/howto.md b/site/_docs/howto.md
index 58d3cd8..3193698 100644
--- a/site/_docs/howto.md
+++ b/site/_docs/howto.md
@@ -31,15 +31,15 @@
## Building from a source distribution
-Prerequisite is Java (JDK 8, 9, 10, 11, 12, 13, or 14) on your path.
+Prerequisite is Java (JDK 8, 9, 10, 11, 12, 13, 14 or 15) on your path.
Unpack the source distribution `.tar.gz` file,
`cd` to the root directory of the unpacked source,
then build using the included maven wrapper:
{% highlight bash %}
-$ tar xvfz apache-calcite-1.25.0-src.tar.gz
-$ cd apache-calcite-1.25.0-src
+$ tar xvfz apache-calcite-1.26.0-src.tar.gz
+$ cd apache-calcite-1.26.0-src
$ ./gradlew build
{% endhighlight %}
@@ -49,7 +49,7 @@
## Building from Git
Prerequisites are git
-and Java (JDK 8, 9, 10, 11, 12, 13, or 14) on your path.
+and Java (JDK 8, 9, 10, 11, 12, 13, 14 or 15) on your path.
Create a local copy of the github repository,
`cd` to its root directory,
@@ -605,7 +605,7 @@
* resolve the issue (do not close it as this will be done by the release
manager);
* select "Fixed" as resolution cause;
- * mark the appropriate version (e.g., 1.25.0) in the "Fix version" field;
+ * mark the appropriate version (e.g., 1.26.0) in the "Fix version" field;
* add a comment (e.g., "Fixed in ...") with a hyperlink pointing to the commit
which resolves the issue (in GitHub or GitBox), and also thank the contributor
for their contribution.
