QgsSQLStatement::NodeJoin class

Join definition.

Base classes

NodeJoin(QgsSQLStatement::NodeTableDef* tabledef, QgsSQLStatement::Node* onExpr, QgsSQLStatement::JoinType type): Constructor with table definition, ON expression.
NodeJoin(QgsSQLStatement::NodeTableDef* tabledef, const QList<QString>& usingColumns, QgsSQLStatement::JoinType type): Constructor with table definition and USING columns.

void accept(QgsSQLStatement::Visitor& v) const override: Support the visitor pattern.
auto clone() const -> QgsSQLStatement::Node* override: Generate a clone of this node.
auto cloneThis() const -> QgsSQLStatement::NodeJoin*: Clone with same type return.
auto dump() const -> QString override: Abstract virtual dump method.
auto nodeType() const -> QgsSQLStatement::NodeType override: Abstract virtual that returns the type of this node.
auto onExpr() const -> QgsSQLStatement::Node*: On expression. Will be nullptr if usingColumns() is not empty.
auto tableDef() const -> QgsSQLStatement::NodeTableDef*: Table definition.
auto type() const -> QgsSQLStatement::JoinType: Join type.
auto usingColumns() const -> QList<QString>: Columns referenced by USING.

Support the visitor pattern.

Parameters
v	A visitor that visits this node.

For any implementation this should look like

C++:

v.visit( *this );

Python:

v.visit( self)

Generate a clone of this node.

Returns	a deep copy of this node.

Make sure that the clone does not contain any information which is generated in prepare and context related. Ownership is transferred to the caller.

Abstract virtual dump method.

Returns	A statement which represents this node as string

Abstract virtual that returns the type of this node.

Returns	The type of this node