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Wenchen Fan 1b99d0cca4 [SPARK-29069][SQL] ResolveInsertInto should not do table lookup 
### What changes were proposed in this pull request?

It's more clear to only do table lookup in `ResolveTables` rule (for v2 tables) and `ResolveRelations` rule (for v1 tables). `ResolveInsertInto` should only resolve the `InsertIntoStatement` with resolved relations.

### Why are the changes needed?

to make the code simpler

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

no

### How was this patch tested?

existing tests

Closes #25774 from cloud-fan/simplify.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-09-16 09:46:34 +09:00
..
catalyst [SPARK-29069][SQL] ResolveInsertInto should not do table lookup 2019-09-16 09:46:34 +09:00
core [SPARK-28471][SQL][DOC][FOLLOWUP] Fix year patterns in the comments of date-time expressions 2019-09-15 11:02:15 -07:00
hive [MINOR][DOCS] Fix few typos in the java docs 2019-09-12 09:30:03 +09:00
hive-thriftserver [SPARK-29056] ThriftServerSessionPage displays 1970/01/01 finish and close time when unset 2019-09-13 09:13:57 -07:00
create-docs.sh
gen-sql-markdown.py [SPARK-27328][SQL] Add 'deprecated' in ExpressionDescription for extended usage and SQL doc 2019-04-09 13:49:42 +08:00
mkdocs.yml [SPARK-21485][SQL][DOCS] Spark SQL documentation generation for built-in functions 2017-07-26 09:38:51 -07:00
README.md [SPARK-28980][CORE][SQL][STREAMING][MLLIB] Remove most items deprecated in Spark 2.2.0 or earlier, for Spark 3 2019-09-09 10:19:40 -05:00

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.