[MINOR][CORE][SQL][DOCS] Typo fixes

## What changes were proposed in this pull request?

Typo fixes

## How was this patch tested?

Local build. Awaiting the official build.

Author: Jacek Laskowski <jacek@japila.pl>

Closes #16144 from jaceklaskowski/typo-fixes.

5 files changed, 7 insertions, 7 deletions

diff --git a/sql/catalyst/src/main/java/org/apache/spark/sql/streaming/OutputMode.java b/sql/catalyst/src/main/java/org/apache/spark/sql/streaming/OutputMode.java
index 49a18df2c7..a515c1a109 100644
--- a/sql/catalyst/src/main/java/org/apache/spark/sql/streaming/OutputMode.java
+++ b/sql/catalyst/src/main/java/org/apache/spark/sql/streaming/OutputMode.java
@@ -46,7 +46,7 @@ public class OutputMode {
 
   /**
    * OutputMode in which all the rows in the streaming DataFrame/Dataset will be written
-   * to the sink every time these is some updates. This output mode can only be used in queries
+   * to the sink every time there are some updates. This output mode can only be used in queries
    * that contain aggregations.
    *
    * @since 2.0.0
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/InternalRow.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/InternalRow.scala
index f498e071b5..256f64e320 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/InternalRow.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/InternalRow.scala
@@ -21,7 +21,7 @@ import org.apache.spark.sql.catalyst.expressions._
 import org.apache.spark.sql.types.{DataType, Decimal, StructType}
 
 /**
- * An abstract class for row used internal in Spark SQL, which only contain the columns as
+ * An abstract class for row used internally in Spark SQL, which only contains the columns as
  * internal types.
  */
 abstract class InternalRow extends SpecializedGetters with Serializable {
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalog.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalog.scala
index 4b8cac8f32..78897daec8 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalog.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalog.scala
@@ -22,7 +22,7 @@ import org.apache.spark.sql.catalyst.expressions.Expression
 
 
 /**
- * Interface for the system catalog (of columns, partitions, tables, and databases).
+ * Interface for the system catalog (of functions, partitions, tables, and databases).
  *
  * This is only used for non-temporary items, and implementations must be thread-safe as they
  * can be accessed in multiple threads. This is an external catalog because it is expected to
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala
index 221f830aa8..b93a5d0b7a 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala
@@ -70,9 +70,9 @@ abstract class Expression extends TreeNode[Expression] {
    * children.
    *
    * Note that this means that an expression should be considered as non-deterministic if:
-   * - if it relies on some mutable internal state, or
-   * - if it relies on some implicit input that is not part of the children expression list.
-   * - if it has non-deterministic child or children.
+   * - it relies on some mutable internal state, or
+   * - it relies on some implicit input that is not part of the children expression list.
+   * - it has non-deterministic child or children.
    *
    * An example would be `SparkPartitionID` that relies on the partition id returned by TaskContext.
    * By default leaf expressions are deterministic as Nil.forall(_.deterministic) returns true.
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
index a8aa1e7255..fc323693a2 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
@@ -930,7 +930,7 @@ case class InitializeJavaBean(beanInstance: Expression, setters: Map[String, Exp
 /**
  * Asserts that input values of a non-nullable child expression are not null.
  *
- * Note that there are cases where `child.nullable == true`, while we still needs to add this
+ * Note that there are cases where `child.nullable == true`, while we still need to add this
  * assertion.  Consider a nullable column `s` whose data type is a struct containing a non-nullable
  * `Int` field named `i`.  Expression `s.i` is nullable because `s` can be null.  However, for all
  * non-null `s`, `s.i` can't be null.