Skip to content
Snippets Groups Projects
Select Git revision
  • working
  • baesline-eviction-with-logging
  • evict-by-size
  • master default protected
  • v2.3.0
  • v2.3.0-rc4
  • v2.3.0-rc3
  • v2.3.0-rc2
  • v2.3.0-rc1
  • v2.2.1
  • v2.2.1-rc2
  • v2.2.1-rc1
  • v2.1.2
  • v2.1.2-rc4
  • v2.1.2-rc3
  • v2.1.2-rc2
  • v2.1.2-rc1
  • v2.2.0
  • v2.1.1
  • v2.1.0
  • v2.0.2
  • v1.6.3
  • v2.0.1
  • v2.0.0
24 results
Compare
user avatar
[SPARK-10655][SQL] Adding additional data type mappings to jdbc DB2dialect.
sureshthalamati authored 
This patch adds DB2 specific data type mappings for decfloat, real, xml , and timestamp with time zone (DB2Z specific type)  types on read and for byte, short data types  on write to the to jdbc data source DB2 dialect. Default mapping does not work for these types when reading/writing from DB2 database.

Added docker test, and a JDBC unit test case.

Author: sureshthalamati <suresh.thalamati@gmail.com>

Closes #9162 from sureshthalamati/db2dialect_enhancements-spark-10655.
9ce714dc
History
user avatar 9ce714dc
History
Name Last commit Last update
..
catalyst
core
hive-thriftserver
hive
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 an extension of SQLContext called HiveContext that allows users to write queries using a subset of HiveQL and access data from a Hive Metastore using Hive SerDes. There are also wrappers that allows 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.