13eb37c860
## What changes were proposed in this pull request? This PR proposes three things as below: - This test looks not testing `<=>` and identical with the test above, `===`. So, it removes the test. ```diff - test("<=>") { - checkAnswer( - testData2.filter($"a" === 1), - testData2.collect().toSeq.filter(r => r.getInt(0) == 1)) - - checkAnswer( - testData2.filter($"a" === $"b"), - testData2.collect().toSeq.filter(r => r.getInt(0) == r.getInt(1))) - } ``` - Replace the test title from `=!=` to `<=>`. It looks the test actually testing `<=>`. ```diff + private lazy val nullData = Seq( + (Some(1), Some(1)), (Some(1), Some(2)), (Some(1), None), (None, None)).toDF("a", "b") + ... - test("=!=") { + test("<=>") { - val nullData = spark.createDataFrame(sparkContext.parallelize( - Row(1, 1) :: - Row(1, 2) :: - Row(1, null) :: - Row(null, null) :: Nil), - StructType(Seq(StructField("a", IntegerType), StructField("b", IntegerType)))) - checkAnswer( nullData.filter($"b" <=> 1), ... ``` - Add the tests for `=!=` which looks not existing. ```diff + test("=!=") { + checkAnswer( + nullData.filter($"b" =!= 1), + Row(1, 2) :: Nil) + + checkAnswer(nullData.filter($"b" =!= null), Nil) + + checkAnswer( + nullData.filter($"a" =!= $"b"), + Row(1, 2) :: Nil) + } ``` ## How was this patch tested? Manually running the tests. Author: hyukjinkwon <gurwls223@gmail.com> Closes #17842 from HyukjinKwon/minor-test-fix. |
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catalyst | ||
core | ||
hive | ||
hive-thriftserver | ||
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.