Summary:
With this diff you should now be able to register `example.py` and read
procedures found there. The procedures will be listed through `CALL
mg.procedures() YIELD *` query, but invoking them will raise
`NotYetImplemented`.
If you wish to test this, you will need to run the Memgraph executable
with PYTHONPATH set to the `include` directory where `mgp.py` is found.
Additionally, you need to pass `--query-modules-directory` flag to
Memgraph, such that it points to where it will find the `example.py`.
For example, when running from the root directory of Memgraph repo, the
shell invocation below should do the trick (assuming `./build/memgraph`
is where is the executable). Make sure that `./query_modules/` does not
have `example.so` built, as that may interfere with loading
`example.py`.
PYTHONPATH=$PWD/include ./build/memgraph --query-modules-directory=./query_modules/
Reviewers: mferencevic, ipaljak, llugovic
Reviewed By: mferencevic, ipaljak, llugovic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2678
Summary:
Before this change, unique constraints supported only pairs of label
and a single property. With this change, unique constraints can be
created for label and set of properties.
Better tests for unique constraints in general are also included in
this diff.
Reviewers: mferencevic, teon.banek
Reviewed By: mferencevic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2653
Summary:
`query::procedure::Module` is now an interface class through which
users interact with loaded modules. At the moment, the interface is implemented
by three concrete classes: `query::procedure::BuiltinModule`,
`query::procedure::SharedLibraryModule` and `query::procedure::PythonModule`.
Reviewers: teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2664
Summary:
This diff contains a basic implementation of unique constraints consistent with
the MVCC storage.
Stale records in the unique constraints are collected by the garbage collector.
Tests for checking correctness of unique constraints and violations are included.
Note: currently we only support a pair of label and a single property. Support for
multiple properties will be added later.
Reviewers: mferencevic, teon.banek
Reviewed By: mferencevic, teon.banek
Subscribers: buda, ipaljak, pullbot
Differential Revision: https://phabricator.memgraph.io/D2608
Summary:
This only imports the `.py` files into the global interpreter. These
modules are not exposed to query execution. A later diff will add that
support.
Reviewers: mferencevic, ipaljak
Reviewed By: mferencevic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2660
Summary:
The antlr openCypher parser generation is moved to query. Also, header files
have been added to the list of generated files so that if any header file is
deleted CMake will know that it has to regenerate it.
Reviewers: teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2652
Summary:
The configuration file that was used for the Debian/CentOS package was manually
written. This diff adds a configuration file generator that extracts all of the
necessary information about the flags directly from the built binary and uses
that information to generate the configuration file for the packages.
Reviewers: teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2589
Summary:
The function will also be used during AST construction in order to
support `CALL ... YIELD *` syntax.
Reviewers: mferencevic, ipaljak
Reviewed By: mferencevic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2586
Summary:
Edge filters (edge type and destination vertex) are now handled natively in the
storage API. The API is implemented to be the fastest possible when using the
filters with the assumption that the number of edge types will be small.
Reviewers: teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2576
Summary:
This diff renames `__reload__` procedure to be `mg.reload` accepting a
module name. The main CallCustomProcedure function is now split into
multiple parts, so that there's more control over finding a procedure,
type checking its arguments and finally checking the returned result
set.
Depends on D2572
Reviewers: mferencevic, ipaljak
Reviewed By: ipaljak
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2573
Summary:
The query execution now has a timeout for each Cypher query it executes. The
timeout is implemented using TSC and will work only when TSC is available (same
as PROFILE). TSC is used to mitigate the performance impact of reading the
current time constantly.
Reviewers: teon.banek
Reviewed By: teon.banek
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2562
