Zane Bitter a3a83aba0d Use __slots__ for more yaqltypes
The change e693e6ecef9c331d4567c6708803e0d9cff1c15a added slots to the
concrete classes in yaqltypes, however the abstract parent classes
HiddenParameterType and LazyParameterType were omitted, with the result
that their derived types would still contain an __dict__ attribute.

Change-Id: I8e7335ced58b06cfd0de81ceb721dc2f8396f85f
2018-02-19 17:40:13 -05:00
2018-02-19 17:40:13 -05:00
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YAQL: Yet Another Query Language

YAQL (Yet Another Query Language) is an embeddable and extensible query language, that allows performing complex queries against arbitrary objects. It has a vast and comprehensive standard library of frequently used querying functions and can be extend even further with user-specified functions. YAQL is written in python and is distributed via PyPI.

Quickstart

Install the latest version of yaql:

pip install yaql>=1.0.0

Run yaql REPL:

yaql

Load a json file:

yaql> @load my_file.json

Check it loaded to current context, i.e. `$`:

yaql> $

Run some queries:

yaql> $.customers
...
yaql> $.customers.orders
...
yaql> $.customers.where($.age > 18)
...
yaql> $.customers.groupBy($.sex)
...
yaql> $.customers.where($.orders.len() >= 1 or name = "John")

Project Resources

License

Apache License Version 2.0 http://www.apache.org/licenses/LICENSE-2.0

Description
Yet another query language
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