Type Members

1.  case class DeltaDelete(child: LogicalPlan, condition: Option[Expression]) extends UnaryNode with Product with Serializable
2.  case class DeltaMergeAction(targetColNameParts: Seq[String], expr: Expression) extends UnaryExpression with Unevaluable with Product with Serializable

   Represents an action in MERGE's UPDATE or INSERT clause where a target columns is assigned the value of an expression

   Represents an action in MERGE's UPDATE or INSERT clause where a target columns is assigned the value of an expression

   targetColNameParts

   The name parts of the target column. This is a sequence to support nested fields as targets.

   expr

   Expression to generate the value of the target column.

3.  case class DeltaMergeInto(target: LogicalPlan, source: LogicalPlan, condition: Expression, matchedClauses: Seq[DeltaMergeIntoMatchedClause], notMatchedClause: Option[DeltaMergeIntoInsertClause], migratedSchema: Option[StructType] = None) extends LogicalPlan with Command with Product with Serializable

   Merges changes specified in the source plan into a target table, based on the given search condition and the actions to perform when the condition is matched or not matched by the rows.

   Merges changes specified in the source plan into a target table, based on the given search condition and the actions to perform when the condition is matched or not matched by the rows.

   The syntax of the MERGE statement is as follows.

   MERGE INTO <target_table_with_alias>
   USING <source_table_with_alias>
   ON <search_condition>
   [ WHEN MATCHED [ AND <condition> ] THEN <matched_action> ]
   [ WHEN MATCHED [ AND <condition> ] THEN <matched_action> ]
   [ WHEN NOT MATCHED [ AND <condition> ] THEN <not_matched_action> ]
   
   where
   <matched_action> = DELETE | UPDATE SET column1 = value1 [, column2 = value2 ...]
   <not_matched_action> = INSERT (column1 [, column2 ...]) VALUES (expr1 [, expr2 ...])

   - There can be 1, 2 or 3 WHEN clauses. Of these, at most 2 can be WHEN MATCHED clauses, and at most 1 can be WHEN NOT MATCHED clause. - WHEN MATCHED clauses:

   • There can be at most one UPDATE action and DELETE action in the MATCHED clauses.
   • Each WHEN MATCHED clause can have an optional condition. However, If there are two WHEN MATCHED clauses, then the first one must have a condition.
   • When there are two MATCHED clauses and there are conditions (or the lack of) that allow a row to match both MATCHED clauses, then the first clause/action is executed. In other words, the order of the MATCHED clauses matter. - WHEN NOT MATCHED clause:
   • Can only have the INSERT action. If present, it must be the last WHEN clause.
   • WHEN NOT MATCHED clause can have an optional condition.
4.  sealed trait DeltaMergeIntoClause extends Expression with Unevaluable

   Trait that represents a WHEN clause in MERGE.

   Trait that represents a WHEN clause in MERGE. See DeltaMergeInto. It extends Expression so that Catalyst can find all the expressions in the clause implementations.

5.  case class DeltaMergeIntoDeleteClause(condition: Option[Expression]) extends Expression with DeltaMergeIntoMatchedClause with Product with Serializable

   Represents the clause WHEN MATCHED THEN DELETE in MERGE.

   Represents the clause WHEN MATCHED THEN DELETE in MERGE. See DeltaMergeInto.

6.  case class DeltaMergeIntoInsertClause(condition: Option[Expression], actions: Seq[Expression]) extends Expression with DeltaMergeIntoClause with Product with Serializable

   Represents the clause WHEN NOT MATCHED THEN INSERT in MERGE.

   Represents the clause WHEN NOT MATCHED THEN INSERT in MERGE. See DeltaMergeInto.

7.  sealed trait DeltaMergeIntoMatchedClause extends Expression with DeltaMergeIntoClause

   Trait that represents WHEN MATCHED clause in MERGE.

   Trait that represents WHEN MATCHED clause in MERGE. See DeltaMergeInto.

8.  case class DeltaMergeIntoUpdateClause(condition: Option[Expression], actions: Seq[Expression]) extends Expression with DeltaMergeIntoMatchedClause with Product with Serializable

   Represents the clause WHEN MATCHED THEN UPDATE in MERGE.

   Represents the clause WHEN MATCHED THEN UPDATE in MERGE. See DeltaMergeInto.

9.  case class DeltaUpdateTable(child: LogicalPlan, updateColumns: Seq[NamedExpression], updateExpressions: Seq[Expression], condition: Option[Expression]) extends UnaryNode with Product with Serializable

   Perform UPDATE on a table

   Perform UPDATE on a table

   child

   the logical plan representing target table