iron_query::SetOp Class Reference

Transitional representation for UNION/UNION ALL/INTERSECT/EXCEPT. More...

#include <set_op.hpp>

Inheritance diagram for iron_query::SetOp:

Collaboration diagram for iron_query::SetOp:

Public Member Functions
	SetOp (const VirtualTable &a, const VirtualTable &b, const SetOpKind &kind)
	Builds a kind b.
std::string	ToString () const override
	Renders this table value as single-line SQL text. See also ToStringFormatted for a multi-line, indented rendering.
Public Member Functions inherited from iron_query::VirtualTable
virtual std::string	ToStringFormatted () const
	Renders this table value as multi-line, indented SQL text for readability (e.g. logging/debugging a generated query). Defaults to ToString; overridden by SelectExpr to lay out each clause on its own line.
virtual std::string	ToStringBracketed () const
	Renders this table value as SQL text, parenthesized so it can be safely embedded as a subquery. Overridden by Table to skip bracketing, since a bare table name never needs it.
virtual std::string	ToStringAsFromItem () const
	Renders this table value as a FROM item. Distinct from ToStringBracketed because PostgreSQL's table_ref grammar accepts a bare join but parenthesizes one only when an alias follows.
Table	As (std::string_view name) const
	Aliases this table value as this AS name, usable as a FROM source. name must be a valid (optionally dotted) SQL identifier.
	operator Expr () const &&
	Converts this table value into a subquery expression, e.g. for use as a scalar subquery. Only available on rvalues.

Detailed Description

Transitional representation for UNION/UNION ALL/INTERSECT/EXCEPT.

See also

https://www.postgresql.org/docs/current/sql-select.html

Constructor & Destructor Documentation

SetOp()

iron_query::SetOp::SetOp	(	const VirtualTable &	a,
		const VirtualTable &	b,
		const SetOpKind &	kind
	)

Builds a kind b.

Note

Does not check that a and b produce the same number of columns or compatible column types.

Member Function Documentation

ToString()

std::string iron_query::SetOp::ToString ( ) const

overridevirtual

Renders this table value as single-line SQL text. See also ToStringFormatted for a multi-line, indented rendering.

Implements iron_query::VirtualTable.

---

The documentation for this class was generated from the following file:

• include/iron_query/set_op.hpp