Type Members

1.  case class Alias(query: Query, name: String) extends Query with Product with Serializable

   A Name alias.

2.  case class AnonymousInput(inputType: TabularData, slot: Int = 0) extends Query with Product with Serializable

   Anonymous input (e.g.

   Anonymous input (e.g. plain select on given TabularType)

   inputType

   type of input

   slot

   the anonymous slot (for multiple inputs)

3.  case class ArrayGetExpression(array: Expression, index: Expression) extends BinaryExpression with Product with Serializable

   Returns array value.

4.  sealed trait BinaryExpression extends Expression

   An expression built from two expressions

5.  case class BinaryOperationExpression(op: BinaryOperation, left: Expression, right: Expression) extends BinaryExpression with Product with Serializable

   A Simple binary expression which works on the same type.

6.  case class CastExpression(expression: Expression, dataType: DataType) extends UnaryExpression with Product with Serializable

   An expression is casted.

7.  case class ColumnExpression(columnId: Int, dataType: DataType) extends LeafExpression with Product with Serializable

   A Column is selected.

8.  sealed trait Condition extends Expression

   A Condition is a special expression which emits a boolean value.

9.  case class ConstantExpression(value: SingleElementBundle) extends LeafExpression with Product with Serializable

   A Constant Expression.

10.  sealed trait Expression extends AnyRef

    An expression (e.g.

    An expression (e.g. Inside Select).

11.  case class Join(left: Query, right: Query, joinType: JoinType, condition: JoinCondition) extends Query with Product with Serializable

    A Join Query

    A Join Query

    left

    left query

    right

    right query

    joinType

    kind of join

    condition

    condition Join Condition

12.  sealed trait JoinCondition extends AnyRef

    Join Conditions.

13.  sealed abstract class JoinType extends AnyRef

    Different Jon Types.

14.  sealed trait LeafExpression extends Expression

    An expression which is not build from other expressions

15.  sealed trait MultiQuery extends AnyRef

    Combines multiples queries (returning multiple tabular data streams)

16.  sealed trait Query extends AnyRef

    Base trait for a Query.

17.  case class QueryColumn(name: String, alias: Option[String], dataType: DataType) extends Product with Serializable

    A Single column inside a query.

18.  case class QueryTabularType(columns: Vector[QueryColumn]) extends Product with Serializable

    Resulting type of a query.

    Resulting type of a query. Similar to ai.mantik.ds.TabularData but with support for alias and duplicates

19.  case class Select(input: Query, projections: Option[Vector[SelectProjection]] = None, selection: Vector[Condition] = Vector.empty) extends Query with Product with Serializable

    A Select selects elements from a stream of tabular rows.

    A Select selects elements from a stream of tabular rows. (Like in SQL Selects), transforms and filters them

    Mantik only supports a subset of SQL Selects yet, however it's a design goal that improvements should be solved similar to SQL if applicable.

    projections

    the columns which are returned, if None all are returned.

    selection

    AND-concatenated filters

20.  case class SelectProjection(columnName: String, expression: Expression) extends Product with Serializable

    A Single Column in a select statement.

21.  case class SingleQuery(query: Query) extends MultiQuery with Product with Serializable

    A Single Query as MultiQuery.

22.  case class SizeExpression(expression: Expression) extends UnaryExpression with Product with Serializable

    Returns array length.

23.  case class Split(query: Query, fractions: Vector[Double], shuffleSeed: Option[Long] = None) extends MultiQuery with Product with Serializable

    A Split operation.

    A Split operation.

    query

    input data

    fractions

    the splitting fractions [0.0 .. 1.0], remaining data will form the last table. resulting data will consist of N + 1 tables.

    shuffleSeed

    if given, shuffle data with the given seed

24.  case class SqlContext(anonymous: Vector[TabularData] = Vector.empty) extends Product with Serializable

    Context for translating SQL Expressions

    Context for translating SQL Expressions

    anonymous

    anonymous sources

25.  case class StructAccessExpression(expression: Expression, name: String) extends UnaryExpression with Product with Serializable

    Gives access to a structural field

26.  sealed trait UnaryExpression extends Expression

    An expression built from one expression.

27.  case class Union(left: Query, right: Query, all: Boolean) extends Query with Product with Serializable

    An UNION.