public enum JoinMode extends Enum<JoinMode>
Specifies how the Join
operator should handle
rows with unmatched keys. These are rows from one of the inputs
of the join that do not join with any row from the other input. Such
rows may be dropped from the join, or retained by padding with nulls
to populate fields where data is not available.
Enum Constant and Description |
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FULL_OUTER
Full outer join: Retain rows with unmatched keys.
|
INNER
Inner join: Discard input rows with unmatched keys.
|
LEFT_OUTER
Left outer join: Retain rows from the left input with unmatched keys,
but discard such rows from the right input.
|
RIGHT_OUTER
Right outer join: Retain rows from the right input with unmatched keys,
but discard such rows from the left input.
|
Modifier and Type | Method and Description |
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static JoinMode |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static JoinMode[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final JoinMode INNER
public static final JoinMode FULL_OUTER
public static final JoinMode LEFT_OUTER
public static final JoinMode RIGHT_OUTER
public static JoinMode[] values()
for (JoinMode c : JoinMode.values()) System.out.println(c);
public static JoinMode valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is nullCopyright © 2024 Actian Corporation. All rights reserved.