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ulysses-you 2e4929b142 [SPARK-36032][SQL] Use inputPlan instead of currentPhysicalPlan to initialize logical link 
### What changes were proposed in this pull request?

Change `currentPhysicalPlan.logicalLink.get` to `inputPlan.logicalLink.get` for initial logical link.

### Why are the changes needed?

At `initialPlan` we may remove some Spark Plan with `queryStagePreparationRules`, if removed Spark Plan is top level node, then we will lose the linked logical node.

Since we support AQE side broadcast join config. It's more common that a join is SMJ at normal planner and changed to BHJ after AQE reOptimize. However, `RemoveRedundantSorts` is applied before reOptimize at `initialPlan`, then a local sort might be removed incorrectly if a join is SMJ at first but changed to BHJ during reOptimize.

### Does this PR introduce _any_ user-facing change?

yes, bug fix

### How was this patch tested?

add test

Closes #33244 from ulysses-you/SPARK-36032.

Authored-by: ulysses-you <ulyssesyou18@gmail.com>
Signed-off-by: Liang-Chi Hsieh <viirya@gmail.com>
(cherry picked from commit 484b50cadf)
Signed-off-by: Liang-Chi Hsieh <viirya@gmail.com>
2021-07-08 22:40:03 -07:00
..
catalyst [SPARK-36049][SQL] Remove IntervalUnit 2021-07-08 23:02:35 +03:00
core [SPARK-36032][SQL] Use inputPlan instead of currentPhysicalPlan to initialize logical link 2021-07-08 22:40:03 -07:00
hive [SPARK-36012][SQL] Add null flag in SHOW CREATE TABLE 2021-07-09 01:21:57 +08:00
hive-thriftserver [SPARK-35958][CORE] Refactor SparkError.scala to SparkThrowable.java 2021-07-08 23:55:11 +08:00
create-docs.sh [SPARK-34010][SQL][DODCS] Use python3 instead of python in SQL documentation build 2021-01-05 19:48:10 +09:00
gen-sql-api-docs.py [SPARK-34747][SQL][DOCS] Add virtual operators to the built-in function document 2021-03-19 10:19:26 +09:00
gen-sql-config-docs.py [SPARK-32194][PYTHON] Use proper exception classes instead of plain Exception 2021-05-26 11:54:40 +09:00
gen-sql-functions-docs.py
mkdocs.yml
README.md

README.md

Spark SQL

This module provides support for executing relational queries expressed in either SQL or the DataFrame/Dataset API.

Spark SQL is broken up into four subprojects:

  • Catalyst (sql/catalyst) - An implementation-agnostic framework for manipulating trees of relational operators and expressions.
  • Execution (sql/core) - A query planner / execution engine for translating Catalyst's logical query plans into Spark RDDs. This component also includes a new public interface, SQLContext, that allows users to execute SQL or LINQ statements against existing RDDs and Parquet files.
  • Hive Support (sql/hive) - Includes extensions that allow users to write queries using a subset of HiveQL and access data from a Hive Metastore using Hive SerDes. There are also wrappers that allow users to run queries that include Hive UDFs, UDAFs, and UDTFs.
  • HiveServer and CLI support (sql/hive-thriftserver) - Includes support for the SQL CLI (bin/spark-sql) and a HiveServer2 (for JDBC/ODBC) compatible server.

Running ./sql/create-docs.sh generates SQL documentation for built-in functions under sql/site, and SQL configuration documentation that gets included as part of configuration.md in the main docs directory.