56bc70047e
## What changes were proposed in this pull request? Introduced by #21320 and #11744 ``` $ sbt > ++2.12.6 > project sql > compile ... [error] [warn] spark/sql/core/src/main/scala/org/apache/spark/sql/execution/ProjectionOverSchema.scala:41: match may not be exhaustive. [error] It would fail on the following inputs: (_, ArrayType(_, _)), (_, _) [error] [warn] getProjection(a.child).map(p => (p, p.dataType)).map { [error] [warn] [error] [warn] spark/sql/core/src/main/scala/org/apache/spark/sql/execution/ProjectionOverSchema.scala:52: match may not be exhaustive. [error] It would fail on the following input: (_, _) [error] [warn] getProjection(child).map(p => (p, p.dataType)).map { [error] [warn] ... ``` And ``` $ sbt > ++2.12.6 > project hive > testOnly *ParquetMetastoreSuite ... [error] /Users/rendong/wdi/spark/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveSparkSubmitSuite.scala:22: object tools is not a member of package scala [error] import scala.tools.nsc.Properties [error] ^ [error] /Users/rendong/wdi/spark/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveSparkSubmitSuite.scala:146: not found: value Properties [error] val version = Properties.versionNumberString match { [error] ^ [error] two errors found ... ``` ## How was this patch tested? Existing tests. Closes #22260 from sadhen/fix_exhaustive_match. Authored-by: 忍冬 <rendong@wacai.com> Signed-off-by: hyukjinkwon <gurwls223@apache.org> |
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catalyst | ||
core | ||
hive | ||
hive-thriftserver | ||
create-docs.sh | ||
gen-sql-markdown.py | ||
mkdocs.yml | ||
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 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
.