mentat/query
Richard Newman 833ff92436
Simple aggregates. (#584) r=emily
* Pre: use debugcli in VSCode.
* Pre: wrap subqueries in parentheses in output SQL.
* Pre: add ExistingColumn.

This lets us make reference to columns by name, rather than only
pointing to qualified aliases.

* Pre: add Into for &str to TypedValue.
* Pre: add Store.transact.
* Pre: cleanup.
* Parse and algebrize simple aggregates. (#312)
* Follow-up: print aggregate columns more neatly in the CLI.
* Useful ValueTypeSet helpers.
* Allow for entity inequalities.
* Add 'differ', which is a ref-specialized not-equals.
* Add 'unpermute', a function for getting unique, distinct pairs from bindings.
* Review comments.
* Add 'the' pseudo-aggregation operator.

This allows for a corresponding value to be returned when a query
includes one 'min' or 'max' aggregate.
2018-03-12 15:18:50 -07:00
..
src Simple aggregates. (#584) r=emily 2018-03-12 15:18:50 -07:00
Cargo.toml Pre: fix query/Cargo.toml indenting. 2017-02-23 18:31:57 -08:00
README.md Add query sub-crate, implementing more of the beginnings of the query language. 2017-01-09 12:31:57 -08:00

This sub-crate implements the core types used by the query parser, translator, and executor — variables, find specifications, etc.

The edn sub-crate implements some even lower-level types, such as Keyword.