7d6e3fb998
### What changes were proposed in this pull request? 1. Add new method to the `JdbcDialect` class - `classifyException()`. It converts dialect specific exception to Spark's `AnalysisException` or its sub-classes. 2. Replace H2 exception `org.h2.jdbc.JdbcSQLException` in `JDBCTableCatalogSuite` by `AnalysisException`. 3. Add `H2Dialect` ### Why are the changes needed? Currently JDBC v2 Table Catalog implementation throws dialect specific exception and ignores exceptions defined in the `TableCatalog` interface. This PR adds new method for converting dialect specific exception, and assumes that follow up PRs will implement `classifyException()`. ### Does this PR introduce _any_ user-facing change? Yes. ### How was this patch tested? By running existing test suites `JDBCTableCatalogSuite` and `JDBCV2Suite`. Closes #29952 from MaxGekk/jdbcv2-classify-exception. Authored-by: Max Gekk <max.gekk@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com> |
||
---|---|---|
.. | ||
catalyst | ||
core | ||
hive | ||
hive-thriftserver | ||
create-docs.sh | ||
gen-sql-api-docs.py | ||
gen-sql-config-docs.py | ||
gen-sql-functions-docs.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 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.