Commit Graph

9 Commits

Author SHA1 Message Date
Teon Banek
1841ff9616 Add operators for getting nodes by label-property index
Summary:
Add ScanAllByLabelPropertyRange operator
This operator uses the label + property indexing feature to iterate over
the vertices. The property value of each vertex is checked whether it is
inside the given range of values. The range is inclusive from both
sides. If the value isn't in range, the vertex is filtered out.

This manual filtering should be replaced by a database API when it
becomes available.

Add ScanAllByLabelPropertyValue operator

Reviewers: florijan, mislav.bradac, buda

Reviewed By: florijan, mislav.bradac

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D503
2017-07-03 11:03:46 +02:00
Teon Banek
ffcc8b8d12 Change CollectProduce to immediately return results
Reviewers: florijan, mislav.bradac

Reviewed By: florijan, mislav.bradac

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D406
2017-05-30 16:55:37 +02:00
Teon Banek
f9bcd6d760 Replace Atoms with Symbols in Expand operator
Reviewers: florijan, mislav.bradac

Reviewed By: florijan

Differential Revision: https://phabricator.memgraph.io/D404
2017-05-30 12:10:17 +02:00
Teon Banek
d016472c3a Add ScanAllByLabel operator.
Summary:
Replace NodeAtom with Symbol inside ScanAll. Move ScanAllCursor outside of
ScanAll class and make it generic with regards to vertices it produces.

Reviewers: mislav.bradac, florijan

Reviewed By: mislav.bradac, florijan

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D387
2017-05-22 09:28:42 +02:00
Teon Banek
87e5dc0dfb Plan '*' in RETURN and WITH
Summary:
Make Symbol members read only.
Check WITH/RETURN * in SymbolGenerator.
Test semantic checks for WITH/RETURN *.
Sort expanded user identifiers by name.
Test planning WITH/RETURN *.

Reviewers: buda, florijan, mislav.bradac

Reviewed By: florijan

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D357
2017-05-12 13:05:40 +01:00
florijan
cc00101cbd Query::StateSwitch added
Summary:
- an enum in query/common.hpp for flagging what kind of switching should be done
- changes in expression evaluator
- changes in logical operators
- modification in RecordAccessor::SwitchOld to support operator functionality
- tests

Reviewers: teon.banek, mislav.bradac, buda

Reviewed By: teon.banek

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D314
2017-04-25 15:54:30 +02:00
florijan
541c3f0af7 Query::Plan - Skip and Limit added
Reviewers: mislav.bradac, teon.banek

Reviewed By: teon.banek

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D292
2017-04-18 16:39:31 +02:00
Teon Banek
3b27b20992 Reorganize query directory tree
Summary:
Move query/frontend/interpret to query/interpret.
Split interpret.hpp to frame.hpp and eval.hpp.
Move query/frontend/logical to query/plan.
Nest namespace frontend::opencypher inside query.

Reviewers: florijan, mislav.bradac, buda

Reviewed By: florijan

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D272
2017-04-13 11:28:11 +02:00
florijan
593e4e72b9 Query::Plan::Aggregate
Summary:
- Aggregation LogicalOperation added, with tests.

- Added capabilities to TypedValue (hash, bool-equality)
to support std::unordered_map<TypedValue>.

- Removed some bad code from utils/hashing/fnv and added
a hashing function for collections.

Reviewers: buda, mislav.bradac, teon.banek

Reviewed By: teon.banek

Subscribers: lion, pullbot

Differential Revision: https://phabricator.memgraph.io/D252
2017-04-11 15:12:06 +02:00