cf3b6551ce
### What changes were proposed in this pull request? This changes `RefreshTableExec` in DSv2 to also invalidate caches with references to the target table to be refreshed. The change itself is similar to what's done in #30211. Note that though, since we currently don't support caching a DSv2 table directly, this doesn't add recache logic as in the DSv1 impl. I marked it as a TODO for now. ### Why are the changes needed? Currently the behavior in DSv1 and DSv2 is inconsistent w.r.t refreshing table: in DSv1 we invalidate both metadata cache as well as all table caches that are related to the table, but in DSv2 we only do the former. This addresses the issue and make the behavior consistent. ### Does this PR introduce _any_ user-facing change? Yes, now refreshing a v2 table also invalidate all the related caches. ### How was this patch tested? Added a new UT. Closes #30359 from sunchao/SPARK-33435. Authored-by: Chao Sun <sunchao@apple.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org> |
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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.