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| author | Ville Lautanala <lautis@gmail.com> | 2017-04-25 07:41:52 +0300 |
|---|---|---|
| committer | Ville Lautanala <lautis@gmail.com> | 2017-04-25 07:56:26 +0300 |
| commit | d8f463a3b87ff9f69eef2a3ed5718b198c2072a1 (patch) | |
| tree | 2bb34207722f3f9d23275a4c1c827fa019f45850 /test/collectors | |
| parent | 6a9f79ad876b930ab8cb17acf70b95c1cc800f8d (diff) | |
| download | rails-d8f463a3b87ff9f69eef2a3ed5718b198c2072a1.tar.gz rails-d8f463a3b87ff9f69eef2a3ed5718b198c2072a1.tar.bz2 rails-d8f463a3b87ff9f69eef2a3ed5718b198c2072a1.zip | |
PostgreSQL lateral expressions
Support for PostgreSQL lateral expressions. This is treated as an unary
function applied to a query expression.
Lateral is a separate function to provide interoperability with aliases
and unions. These are also separate node types that wrap
SelectStatements. The lateral option would need to be implemented in
these nodes separately if lateral was an option of SelectStatement.
When building the query, an alias can be given as an argument. This
enables building a lateral query with an table alias without using
either Nodes::TableAlias or Nodes::Lateral directly.
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