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Wenchen Fan 124d011ee7 [SPARK-35881][SQL][FOLLOWUP] Remove the AQE post stage creation extension 
### What changes were proposed in this pull request?

This is a followup of #33140

It turns out that we may be able to complete the AQE and columnar execution integration without the AQE post stage creation extension. The rule `ApplyColumnarRulesAndInsertTransitions` can add to-columnar transition if the shuffle/broadcast supports columnar.

### Why are the changes needed?

remove APIs that are not needed.

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

No, the APIs are not released yet.

### How was this patch tested?

existing and manual tests

Closes #33701 from cloud-fan/aqe.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2021-08-12 21:35:28 +08:00
..
catalyst [SPARK-36445][SQL] ANSI type coercion rule for date time operations 2021-08-11 11:55:45 +08:00
core [SPARK-35881][SQL][FOLLOWUP] Remove the AQE post stage creation extension 2021-08-12 21:35:28 +08:00
hive [SPARK-36421][SQL][DOCS] Use ConfigEntry.key to fix docs and set command results 2021-08-06 11:01:47 +09:00
hive-thriftserver [SPARK-36410][CORE][SQL][STRUCTURED STREAMING][EXAMPLES] Replace anonymous classes with lambda expressions 2021-08-09 19:28:31 +09:00
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.