Commit graph

126 commits

Author SHA1 Message Date
125306e108 Update dependencies. Lint. 2020-08-05 23:03:58 -04:00
bf1ac14d32 Update dependency versions. Fix minor warnings. 2020-05-12 10:21:51 -04:00
a8223d11c9 Box the ConjoiningClauses in the enum ComputedTable to lower the size of that struct. 2020-02-20 12:16:21 -05:00
Greg Burd
4f81c4e15b Attempting to cleanup with clippy, rustfmt, etc.
Integrate https://github.com/mozilla/mentat/pull/806
2020-01-31 10:55:45 -05:00
Greg Burd
b2f92b8461 Update to 2018 edition of Rust (1.42). Fix and format code. Update dependencies. Fix tests. 2020-01-16 10:58:21 -05:00
Grisha Kruglov
1e488d720b Post: Use a single implementation of bail macro 2018-08-09 13:16:05 -07:00
Grisha Kruglov
9381af4289 Pre: Move core/Attribute* to core-traits 2018-08-09 13:16:05 -07:00
Grisha Kruglov
ccdd17551a Pre: Move query-algebrizer/error.rs into query-algebrizer-traits 2018-08-09 13:16:05 -07:00
Grisha Kruglov
9fd198f96a Pre: Move ValueTypeSet into core-traits 2018-08-09 13:16:05 -07:00
Grisha Kruglov
2ae8594d20 Pre: Do not re-export EdnParseError from core 2018-08-09 13:16:05 -07:00
Grisha Kruglov
07beb68c7a Pre: Remove query/ crate 2018-08-09 13:16:05 -07:00
Grisha Kruglov
d0214fad7d Pre: Move core/types.rs into core_traits 2018-08-09 13:16:05 -07:00
Grisha Kruglov
a57ba5d79f Pre: Move Entid and KnownEntid into core_traits 2018-08-09 13:16:05 -07:00
Nick Alexander
af005a7669 Convert query-algebrizer/ to AlgebrizerError. 2018-06-27 15:05:43 -07:00
Grisha Kruglov
326fe881a0 Convert query-algebrizer/ to failure. 2018-06-20 14:41:59 -07:00
Nick Alexander
cfed968514 Review comments. 2018-06-04 15:21:27 -07:00
Nick Alexander
d4166cc67c Part 6: Remove query-parser entirely. 2018-06-04 15:04:39 -07:00
Nick Alexander
47441f56dc Part 5: Push FindQuery into query-algebrizer; structure errors.
This is a big deck-chair re-arrangement.  This puts FindQuery into
query-algebrizer and puts the validation from ParsedFindQuery ->
FindQuery their as well.

Some tests were re-homed for this.

In addition, the little-used maplit crate dependency was replaced with
inline expressions.
2018-06-04 15:04:39 -07:00
Nick Alexander
a8073056f2 Part 3: Move query into edn.
It's unfortunate to squash two crates together like this, but it's the
best option.
2018-06-04 15:04:37 -07:00
Nick Alexander
1d8d94f887 Part 2: Turn (type-function ?var) into (type ?var type-keyword).
This is more general (the parser doesn't encode the set of known
types), and avoids a dependency on `ValueType`.
2018-06-04 14:52:51 -07:00
Nick Alexander
3cc8b4fd24 Pre: Prefer [(pred ...)] to [[pred ...]] syntax.
This is a style choice.  We supported both, perhaps for Datomic
compliance, but it's not the standard we use in our code base.  In
addition, it doesn't read like lisp (which is what EDN is copying),
since [] is not function application in most lisps.

It's also a convenience: I don't want to parse brackets that have to
agree with `rust-peg`.  It's not hard but it's also not worth doing.
2018-06-04 14:52:51 -07:00
Nick Alexander
d8d18a1731
[query] Handle SQL NULL for aggregates over 0 rows. (#684) (#688) r=rnewman
This uses a `SELECT *` from an inner subselect to filter potentially `NULL` aggregates.

The alternative is to handle `NULL` values throughout the projector, which is simple but loses a valuable invariant: Mentat SQL queries produce values that are not `NULL`.
2018-06-01 14:17:31 -07:00
Richard Newman
01db9232b4
Include namespace-separating solidus in NamespaceableName; improve type handling around ground (#713) r=nalexander
* Include the namespace-separating solidus in NamespaceableName.
* Use type annotations when deciding how to process ambiguous ground input.
* Include simple patterns in the type extraction phase of pattern application. (#705)
* Review comment.
* Add a test.
2018-05-29 16:45:53 +02:00
Richard Newman
3dc68bcd38 Combine NamespacedKeyword and Keyword. (#689) r=nalexander
* Make properties on NamespacedKeyword/NamespacedSymbol private

* Use only a single String for NamespacedKeyword/NamespacedSymbol

* Review comments.

* Remove unsafe code in namespaced_name.

Benchmarking shows approximately zero change.

* Allow the types of ns and name to differ when constructing a NamespacedName.

* Make symbol namespaces optional.

* Normalize names of keyword/symbol constructors.

This will make the subsequent refactor much less painful.

* Use expect not unwrap.

* Merge Keyword and NamespacedKeyword.
2018-05-11 09:52:17 -07:00
Emily Toop
e1e7cbaa44
Closes #634 - Fix variables in predicates (#635) r=rnewman
We were forgetting to check for bound variables when resolving types other than ref types during inequality handling. This patch adds in the binding checks and `bails` if the bound variable is of the wrong type. #634
2018-05-09 16:24:12 +01:00
Richard Newman
e21156a754
Implement simple pull expressions (#638) r=nalexander
* Refactor AttributeCache populator code for use from pull.

* Pre: add to_value_rc to Cloned.

* Pre: add From<StructuredMap> for Binding.

* Pre: clarify Store::open_empty.

* Pre: StructuredMap cleanup.

* Pre: clean up a doc test.

* Split projector crate. Pass schema to projector.

* CLI support for printing bindings.

* Add and use ConjoiningClauses::derive_types_from_find_spec.

* Define pull types.

* Implement pull on top of the attribute cache layer.

* Add pull support to the projector.

* Parse pull expressions.

* Add simple pull support to connection objects.

* Tests for pull.

* Compile with Rust 1.25.

The only choice involved in this commit is that of replacing the
anonymous lifetime '_ with a named lifetime for the cache; since we're
accepting a Known, which includes the cache in question, I think it's
clear that we expect the function to apply to any given cache
lifetime.

* Review comments.

* Bail on unnamed attribute.

* Make assert_parse_failure_contains safe to use.

* Rework query parser to report better errors for pull.

* Test for mixed wildcard and simple attribute.
2018-05-04 12:56:00 -07:00
Richard Newman
f979044ba1
Refactor value type boxing. (#659) r=nalexander
* Pre: eliminate some occurrences of Rc, largely through the magic of Into.
* Pre: introduce FromRc to convert between refcounted types.
* Introduce ValueRc as an abstraction over Rc/Arc choice.
* Move Cloned to core.
* Move CString-creation methods to TypedValue.
* Finish transition.
2018-04-25 14:23:27 -07:00
Nick Alexander
c8da4be38f (query) Implement tx-log API: (tx-ids ...) and (tx-data ...) functions.
`tx-ids` allows to enumerate transaction IDs efficiently.

`tx-data` allows to extract transaction log data efficiently.

We might eventually allow to filter by impacted attribute sets as well.
2018-04-19 09:58:41 -07:00
Nick Alexander
e532614908 (query) Pre: Model columns that don't have type tags closer to Column. 2018-04-19 09:58:41 -07:00
Richard Newman
a57f7aff99
Add specialized tx-before and tx-after predicates. (#599) r=emily 2018-04-05 10:49:06 -07:00
Richard Newman
994a3e65e2
Tests and fixes for aggregates over different or unknown types. (#588) r=emily 2018-03-15 07:14:06 -07:00
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
Richard Newman
1817ce7c0b Performance and cleanup. r=emily
* Use fixed-size arrays for bootstrap datoms, not vecs.
* Wide-ranging cleanup.

    This commit:
    - Deletes some dead code.
    - Marks some functions only used by tests as cfg(test).
    - Adds pub(crate) to a bunch of functions.
    - Cleans up a few other nits.
2018-03-06 09:03:00 -08:00
Richard Newman
f42ae35b70 Update cache on write. (#566) r=emily
* Use the cache to make constant queries super fast.
* Fix translate tests to match: we no longer generate SQL for many of them!
* Accumulate additions and removals into the cache.
    * Make attribute cache clone-on-write; store it in Metadata.
    * Allow caching of fulltext attributes, interning strings.
2018-03-06 09:01:20 -08:00
Richard Newman
d46535a7c2
When an attribute is known-fulltext, don't hit AllDatoms. (#576) r=nalexander 2018-03-05 10:09:53 -08:00
Richard Newman
54bd883c65 Follow-up: remove logging and such elsewhere in the codebase. 2018-02-21 11:51:45 -08:00
Richard Newman
e33fe71c47 Rework caching and use it inside the query engine. (#553) r=emily
This puts caching in mentat_db, adds a reverse lookup capability for
unique attributes, and populates bidirectional caches with a single
SQL cursor walk.

Differentiate between begin_read and begin_uncached_read.

Note that we still allow toggling within InProgress, because there might be
transient local state that makes starting a new transaction impossible.
2018-02-21 11:51:45 -08:00
Kit Cambridge
a6341f6fd6 Implement q_prepare with pre-bound variables. r=rnewman 2018-02-07 21:48:05 -08:00
Richard Newman
66e6fef75e Define Store, use TabWriter in the CLI for aligning columnar output. (#540) r=emily
* Define Store, which is a simple container for a SQLite connection and a Conn.
  This is a breaking change.
* Return the FindSpec as part of QueryOutput, not just results.
* Switch to using stderr in appropriate places in CLI.
* Print columns in CLI output.
2018-02-01 09:29:07 -08:00
Richard Newman
37a7c9ea48 Validate attributes installed after open. (#538) r=emily
Make AttributeBuilder optionally helpful, fix tests.
2018-02-01 09:29:04 -08:00
Thom Chiovoloni
98502eb68f Implement type annotations in queries. (#526) r=rnewman 2018-01-29 14:37:53 -08:00
Richard Newman
4acc6d0658 InProgressRead, KnownEntid. r=nalexander,emily
Improve naming of read-only transactions.
    Implement entid_for_type.
    Simplify get_attribute.
    Name ignored var in algebrizer.
    Comment attribute_for_ident.
    Make KnownEntid a core concept.
    Expose lookup_value_for_attribute.
    Implement HasSchema and a new query encapsulation on Conn.
    Pre: export Queryable.
2018-01-23 08:40:18 -08:00
Richard Newman
6797a606b5 Preliminary work for vocabulary management. r=emily,nalexander
Pre: export AttributeBuilder from mentat_db.
Pre: fix module-level comment for tx/src/entities.rs.
Pre: rename some `to_` conversions to `into_`.
Pre: make AttributeBuilder::unique less verbose.
Pre: split out a HasSchema trait to abstract over Schema.
Pre: rename SchemaMap/schema_map to AttributeMap/attribute_map.
Pre: TypedValue/NamespacedKeyword conversions.
Pre: turn Unique and ValueType into TypedValue::Keyword.
Pre: export IntoResult.
Pre: export NamespacedKeyword from mentat_core.
Pre: use intern_set in tx.
Pre: add InternSet::len.
Pre: comment gardening.
Pre: remove inaccurate TODO from TxReport comment.
2018-01-23 08:25:32 -08:00
Thom
9740cafdbd Automatically remove trailing whitespace from text files. (#527) r=rnewman
This was done using the following shell script:

```
find . -type f -not -path "*target*" \
       '(' -name '*.rs' -o -name '*.md' -o -name '*.toml' ')' -print0 | \
    xargs -0 sed -i '' -E 's/[[:space:]]*$//'
```

Which is admittedly imperfect, but manages to hit everything that was a problem in this repo.
2018-01-19 21:21:04 -06:00
Richard Newman
df90c366af
Partial work from simple aggregates work (#497) r=nalexander
* Pre: make FindQuery, FindSpec, and Element non-Clone.
* Pre: make query translator return a Result.
* Pre: make projection return a Result.
* Pre: refactor query parser in preparation for parsing aggregates.
* Pre: rename PredicateFn -> QueryFunction.
* Pre: expose more about bound variables from CC.
* Pre: move ValueTypeSet to core.
2017-11-30 15:02:07 -08:00
Emily Toop
c15973f269 Support tx places in queries (#485) r=rnewman
* Support tx places in queries
2017-06-28 18:20:16 +01:00
Richard Newman
eaf3e7fc4b Extend inequalities to Instants. (#439) r=fluffyemily,nalexander 2017-06-16 11:57:44 -07:00
Richard Newman
20aa11dcbd Support variable fulltext searches. (#479) r=nalexander 2017-06-15 10:32:46 -07:00
Richard Newman
3f264e9eb2 Implement fulltext. (#477) r=nalexander
* You can't use fulltext search on a non-fulltext attribute.
* Allow for implicit placeholder bindings in fulltext.
2017-06-15 10:28:11 -07:00
Richard Newman
565a0e9ff9 Implement MATCHES throughout SQL machinery. 2017-06-15 10:28:10 -07:00