Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/15513#discussion_r84591475
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/command/DDLSuite.scala
---
@@ -1455,50 +1455,59 @@ class DDLSuite extends QueryTest with
SharedSQLContext with BeforeAndAfterEach {
sql("DESCRIBE FUNCTION log"),
Row("Class: org.apache.spark.sql.catalyst.expressions.Logarithm") ::
Row("Function: log") ::
- Row("Usage: log(b, x) - Returns the logarithm of x with base b.")
:: Nil
+ Row("Usage: log(base, expr) - Returns the logarithm of expr with
base.") :: Nil
)
// predicate operator
checkAnswer(
sql("DESCRIBE FUNCTION or"),
Row("Class: org.apache.spark.sql.catalyst.expressions.Or") ::
Row("Function: or") ::
- Row("Usage: a or b - Logical OR.") :: Nil
+ Row("Usage: expr1 or expr2 - Logical OR.") :: Nil
)
checkAnswer(
sql("DESCRIBE FUNCTION !"),
Row("Class: org.apache.spark.sql.catalyst.expressions.Not") ::
Row("Function: !") ::
- Row("Usage: ! a - Logical not") :: Nil
+ Row("Usage: ! expr - Logical not.") :: Nil
)
// arithmetic operators
checkAnswer(
sql("DESCRIBE FUNCTION +"),
Row("Class: org.apache.spark.sql.catalyst.expressions.Add") ::
Row("Function: +") ::
- Row("Usage: a + b - Returns a+b.") :: Nil
+ Row("Usage: expr1 + expr2 - Returns expr1+expr2.") :: Nil
)
// comparison operators
checkAnswer(
sql("DESCRIBE FUNCTION <"),
Row("Class: org.apache.spark.sql.catalyst.expressions.LessThan") ::
Row("Function: <") ::
- Row("Usage: a < b - Returns TRUE if a is less than b.") :: Nil
+ Row("Usage: expr1 < expr2 - Returns TRUE if expr1 is less than
expr2.") :: Nil
)
// STRING
checkAnswer(
sql("DESCRIBE FUNCTION 'concat'"),
Row("Class: org.apache.spark.sql.catalyst.expressions.Concat") ::
Row("Function: concat") ::
Row("Usage: concat(str1, str2, ..., strN) " +
- "- Returns the concatenation of str1, str2, ..., strN") :: Nil
+ "- Returns the concatenation of str1, str2, ..., strN.") :: Nil
)
// extended mode
checkAnswer(
sql("DESCRIBE FUNCTION EXTENDED ^"),
Row("Class: org.apache.spark.sql.catalyst.expressions.BitwiseXor") ::
- Row("Extended Usage:\n> SELECT 3 ^ 5; 2") ::
+ Row(
+ """Extended Usage:
+ | Arguments:
+ | expr1 - a integral numeric expression.
--- End diff --
I will sweep it the same instances!
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