Module helpers 

SQL fragment builders used by the PostgreSQL query builders.

Most items are internal. The public ones render join fragments for hand-built SQL: join, left_join, natural_join and the other *_join functions (JOIN table ON condition), and the PostgreSQL-only *_join_using functions (JOIN table USING (columns)). JoinArg is the argument type of the select builder’s .join(...) methods.

Structs

Join

The JOIN keyword of a join clause, such as NATURAL LEFT OUTER JOIN.

Traits

JoinArg

Trait for arguments accepted by .join() and related join methods.

Functions

cross_join

Compatibility helper for a conditional cross join.

full_join

Renders FULL JOIN table ON condition.

full_join_using

Renders FULL JOIN table USING (columns). See join_using for how to pass columns.

full_outer_join

Renders FULL OUTER JOIN table ON condition.

full_outer_join_using

Renders FULL OUTER JOIN table USING (columns). See join_using for how to pass columns.

inner_join

Renders INNER JOIN table ON condition.

inner_join_using

Renders INNER JOIN table USING (columns). See join_using for how to pass columns.

join

Renders JOIN table ON condition.

join_using

Renders JOIN table USING (columns), which joins rows whose same-named columns are equal.

left_join

Renders LEFT JOIN table ON condition.

left_join_using

Renders LEFT JOIN table USING (columns). See join_using for how to pass columns.

left_outer_join

Renders LEFT OUTER JOIN table ON condition.

left_outer_join_using

Renders LEFT OUTER JOIN table USING (columns). See join_using for how to pass columns.

natural_full_join

Renders NATURAL FULL JOIN table.

natural_full_outer_join

Renders NATURAL FULL OUTER JOIN table.

natural_inner_join

Renders NATURAL INNER JOIN table.

natural_join

Renders NATURAL JOIN table.

natural_left_join

Renders NATURAL LEFT JOIN table.

natural_left_outer_join

Renders NATURAL LEFT OUTER JOIN table.

natural_right_join

Renders NATURAL RIGHT JOIN table.

natural_right_outer_join

Renders NATURAL RIGHT OUTER JOIN table.

right_join

Renders RIGHT JOIN table ON condition.

right_join_using

Renders RIGHT JOIN table USING (columns). See join_using for how to pass columns.

right_outer_join

Renders RIGHT OUTER JOIN table ON condition.

right_outer_join_using

Renders RIGHT OUTER JOIN table USING (columns). See join_using for how to pass columns.