Commit Graph

300 Commits

Author SHA1 Message Date
Radosław Waśko
2d29456ed1
Review File/Data read and read_text warnings (#5799)
Closes #5113

Fixes a bug where read-only files would be overwritten if File.write was used in backup mode, and added tests to avoid such regression. To implement it, introduced a `is_writable` property on `File`.
2023-03-06 03:43:38 +00:00
Jaroslav Tulach
f64edd806d
Switch to Truffle PE mode before calling into Enso (#5783)
Enter partial evaluation mode via `CallTarget.call` before invoking `InteropLibrary`. Fixes #5782.
2023-03-03 14:39:37 +00:00
James Dunkerley
01fc34c18a
Improving Expression Support for In Database (#5790)
- Adjust Excel Workbook write behaviour.
- Support Nothing / Null constants.
- Deduce the type of arithmetic operations and `iif`.
- Allow Date_Time constants, treating as local timezone.
- Removed the `to_column_name` and `ensure_sane_name` code.
2023-03-03 12:03:05 +00:00
James Dunkerley
9ee21e8812
Stability improvements in visualizations. (#5760)
- Handle `WithWarnings` in `IndirectInvokeCallableNode`.
- Handle no RootNode in `ErrorResolver`.
- Allow table vizualisation to cope if no `data` passed.
- Add `Warning.has_warnings` to check if warnings present.
- Adjust `set_value` for `JS_Object` so creates a new object each time.
2023-02-24 21:04:50 +00:00
Radosław Waśko
b764b0b7b7
Improve error handling of Connection.query (#5693)
Closes #5252
2023-02-24 17:15:10 +00:00
Radosław Waśko
793eafc866
Improve Table.parse_values API (#5692)
Closes #5111
2023-02-24 13:35:01 +00:00
James Dunkerley
652b8d5db3
Update rename_columns to new API design, add first_row, second_row and last_row functions to the table. (#5719)
- Updates the `rename_columns` API.
- Add `first_row`, `second_row` and `last_row` to the Table types.
- New option for reading only last row of ResultSet.
2023-02-23 19:42:45 +00:00
Radosław Waśko
ed6d3d0f97
Review Text encoding/decoding problem handling (#5701)
Closes #5112
2023-02-23 12:53:44 +00:00
GregoryTravis
3a09ee88f6
Wip/gmt/match find only text (#5721)
Rename is_match + match to match + find (respectively), and remove all non-regexp functionality.

Regexp flags and Match_Mode are also no longer supported by these methods.
2023-02-23 09:47:10 +00:00
Pavel Marek
58c7ca5401
Performance improvements for Comparators (#5687)
Critical performance improvements after #4067

# Important Notes
- Replace if-then-else expressions in `Any.==` with case expressions.
- Fix caching in `EqualsNode`.
- This includes fixing specializations, along with fallback guard.
2023-02-21 00:56:11 +00:00
James Dunkerley
6dddc530b6
Adding JSON serialization for Map. Adding Table viz support for map. (#5702)
- Add `to_js_object` for `Map` allowing serialization.
- Set default viz to be a Table.
- Add serialization for Map in Table.
- Sort visualization of 2D vectors.

![image](https://user-images.githubusercontent.com/4699705/220112458-4734f126-3f04-4fb3-8c34-09bf11425d53.png)
2023-02-20 23:11:13 +00:00
Jaroslav Tulach
97bcd87dc6
File.parent can return Nothing (#5699)
`File.parent` can be `Nothing`
2023-02-20 19:13:56 +00:00
Paweł Grabarz
ccdfaca584
Support widgets and placeholders in more complex expressions (#5656)
Implements https://github.com/enso-org/enso/issues/5032

Added support for widgets in infix expressions (right now only used for file paths)
<img width="306" alt="image" src="https://user-images.githubusercontent.com/919491/218736181-98965cd4-2a8e-4f7a-bbf8-ab302ac5b22c.png">

Widgets and placeholders are handled for all chained methods within a node
<img width="292" alt="image" src="https://user-images.githubusercontent.com/919491/218736249-a0190115-623e-4e66-aff4-90eb2a50685d.png">

The qualified method call convention and static methods no longer confuse the argument placeholders
<img width="374" alt="image" src="https://user-images.githubusercontent.com/919491/218736628-24073f5c-0512-4b37-a271-0248bc954802.png">

Type constructor expressions now receive placeholder arguments. The placeholders work on nested expressions within a node.
<img width="405" alt="image" src="https://user-images.githubusercontent.com/919491/218737379-b53ff125-3910-48f3-bb9f-a0e7b1684ab9.png">
2023-02-20 06:39:39 +00:00
GregoryTravis
afb853a03f
Update Text.locate, Text.locate_all, Text.index_of and Text.last_index_of #5119 (#5679)
Remove regex support from .locate and .locate_all; regex functionality is moved to .match and .match_all where appropriate. This is in preparation for simplifying regex support across the board.

Also change Matching_Mode types to a single type with two variants.

Note: the matcher parameter to .locate and .locate_all has been replaced by a case_sensitivity parameter, of type Case_Sensitivity, which differs in that it also has a Default option. Default is treated as Sensitive.
2023-02-17 19:41:55 +00:00
Radosław Waśko
4dcf802831
Ensure that warnings are preserved on Nothing values passing back to Enso through polyglot boundary (#5677)
Fixes #5672

# Important Notes
- Added a subproject `enso-test-java-helpers` which allows the in-Enso tests to add Java helpers for testing.
2023-02-17 13:38:26 +00:00
Radosław Waśko
3027c6f3a2
Ensure entries containing newlines are quoted when writing Delimited Files (#5652)
Fixes #5638
2023-02-17 00:57:48 +00:00
James Dunkerley
1bc27501e6
Remove Column type from Aggregate_Column, simplify Column_Selector, some new File_Formats (#5646)
- Updated `Widget.Vector_Editor` ready for use by IDE team.
- Added `get` to `Row` to make API more aligned.
- Added `first_column`, `second_column` and `last_column` to `Table` APIs.
- Adjusted `Column_Selector` and associated methods to have simpler API.
- Removed `Column` from `Aggregate_Column` constructors.
- Added new `Excel_Workbook` type and added to `Excel_Section`.
- Added new `SQLiteFormatSPI` and `SQLite_Format`.
- Added new `IamgeFormatSPI` and `Image_Format`.
2023-02-16 15:15:49 +00:00
Michael Mauderer
edfa845b34
Implement Backend API for Lazy Table Visualization. (#4087)
Adds relevant code to the standard library that can be used to access table visualization data in a lazy visualization.
2023-02-14 14:05:53 +00:00
Radosław Waśko
a02eab451e
Implement basic warnings for column arithmetic, review warnings on expressions and filter (#5605)
Closes #5109

# Important Notes
- Currently the tests pass for the in-memory parts of Common_Table_Operations, but still some stuff not working on DB backends - in progress.
2023-02-14 09:33:04 +00:00
Pavel Marek
1f8511dab2
Add Comparator conversion for all types (#4067)
Add `Comparator` type class emulation for all types. Migrate all the types in stdlib to this new `Comparator` API. The main documentation is in `Ordering.enso`.

Fixes these pivotals:
- https://www.pivotaltracker.com/story/show/183945328
- https://www.pivotaltracker.com/story/show/183958734
- https://www.pivotaltracker.com/story/show/184380208

# Important Notes
- The new Comparator API forces users to specify both `equals` and `hash` methods on their custom comparators.
- All the `compare_to` overrides were replaced by definition of a custom _ordered_ comparator.
- All the call sites of `x.compare_to y` method were replaced with `Ordering.compare x y`.
- `Ordering.compare` is essentially a shortcut for `Comparable.from x . compare x y`.
- The default comparator for `Any` is `Default_Unordered_Comparator`, which just forwards to the builtin `EqualsNode` and `HashCodeNode` nodes.
- For `x`, one can get its hash with `Comparable.from x . hash x`.
- This makes `hash` as _hidden_ as possible. There are no other public methods to get a hash code of an object.
- Comparing `x` and `y` can be done either by `Ordering.compare x y` or `Comparable.from x . compare x y` instead of `x.compare_to y`.
2023-02-10 09:22:11 +00:00
James Dunkerley
1c821e22cf
Some fixed form the Anagrams experiment. (#5592)
- Fixes the display of Date, Time_Of_Day and Date_Time so doesn't wrap.
- Adjust serialization of large integer values for JS and display within table.
- Workaround for issue with using `.lines` in the Table (new bug filed).
- Disabled warning on no specified `separator` on `Concatenate`.

Does not include fix for aggregation on integer values outside of `long` range.
2023-02-08 22:17:00 +00:00
Radosław Waśko
4f90946d1e
Rework Invalid Aggregations (#5579)
Closes #5108
2023-02-08 18:39:09 +00:00
James Dunkerley
c39410b4d1
Adjusting annotations to use Widget types properly. (#5564)
Closes #5038

- Use the proper widget structure.
- Provide new method `get_widget_json` with whole structure, but keep `get_full_annotations_json` in old form.
- Start to get to some reusable functions.
- Added widget to JS_Object field selections.
2023-02-07 07:33:51 +00:00
Radosław Waśko
3c72ab08c4
Review Missing_Input_Column and Column_Index_Out_Of_Range warnings (#4118)
Implements https://www.pivotaltracker.com/story/show/184226383
2023-02-06 19:52:25 +00:00
James Dunkerley
dcd6d740bb
Fix bug with Delimited_Format web reader. (#4112)
- Mistake using `if_nothing` not `is_nothing`.
- Cache the File_Format types to save calling over and over.
2023-02-02 07:11:49 +00:00
James Dunkerley
0790ce494f
New set function, parse a column (#4097)
- New `set` function design - takes a `Column` and works with that more easily and supports control of `Set_Mode`.
- New simple `parse` API on `Column`.
- Separated expression support for `filter` to new `filter_by_expression` on `Table`.
- New `compute` function allowing creation of a column from an expression.
- Added case sensitivity argument to `Column` based on `starts_with`, `ends_with` and `contains`.
- Added case sensitivity argument to `Filter_Condition` for `Starts_With`, `Ends_With`, `Contains` and `Not_Contains`.
- Fixed the issue in JS Table visualisation where JavaScript date was incorrectly set.
- Some dynamic dropdown expressions - experimenting with ways to use them.
- Fixed issue with `.pretty` that wasn't escaping `\`.
- Changed default Postgres DB to `postgres`.
- Fixed SQLite support for starts_with, ends_with and contains to be consistent (using GLOB not LIKE).
2023-01-31 20:48:16 +00:00
Radosław Waśko
c965ad3455
Review Table.order_by (#4104) 2023-01-31 18:29:02 +00:00
Radosław Waśko
b9dbfd036f
First steps of the Problem Handling refactor to the new design (#4086)
Implements:
- https://www.pivotaltracker.com/story/show/184226137
- https://www.pivotaltracker.com/story/show/184226434
- https://www.pivotaltracker.com/story/show/184226462
2023-01-30 16:48:06 +00:00
Dmitry Bushev
b65dd1f3fe
Warnings API (#4093)
Add information about warngins associated with the value to the expression update payload.
2023-01-28 03:13:38 +00:00
James Dunkerley
359d4f56df
Initial Widget Dynamic Metadata (#4082)
Adjusts the old mock to use new attributes.
Expanded examples for dynamic widgets.
2023-01-25 14:16:10 +00:00
James Dunkerley
60f0e96047
Update starts_with, ends_with and contains to new API design (#4078)
- Updated `Text.starts_with`, `Text.ends_with` and `Text.contains` to new simpler API.
- Added a `Case_Sensitivity.Default` and adjusted `Table.distinct` to use it by default.
- Fixed a bug with `Data.fetch` on an HTTP error.
- Improved SQLite Case Sensitivity control in distinct to use collations.
2023-01-25 11:47:27 +00:00
Dmitry Bushev
3dbceef163
Default visualization preprocessor handles errors (#4080)
When the function is visualized with the `default_preprocessor` method, it returns a dataflow error that shows up in the logs as
```
Cannot encode class org.enso.interpreter.runtime.error.DataflowError to byte array.
```

PR handles dataflow errors in the preprocessor and fallbacks the `to_display_text` value. As a bonus, we get a function visualization.
2023-01-25 03:37:21 +00:00
Radosław Waśko
778d28fba3
Table with no columns is not valid, No_Output_Columns is always an error (#4073)
Implements https://www.pivotaltracker.com/story/show/184226020
2023-01-25 02:40:23 +00:00
Michael Mauderer
38906b39da
Implement Lazy Text Visualisation. (#3910)
Implements [#183453466](https://www.pivotaltracker.com/story/show/183453466).

https://user-images.githubusercontent.com/1428930/203870063-dd9c3941-ce79-4ce9-a772-a2014e900b20.mp4

# Important Notes
* the best laziness is used for `Text` type, which makes use of its internal representation to send data
* any type will first compute its default string representation and then send the content of that lazy to the IDE
* special handling of files and their content will be implemented in the future
* size of the displayed text can be updated dynamically based on best effort information: if the backend does not yet know the full width/height of the text, it can update the IDE at any time and this will be handled gracefully by updating the scrollbar position and sizes.
2023-01-24 20:55:36 +00:00
Dmitry Bushev
bf9508603f
Add Meta.get_annotation (#4049)
- add: `GeneralAnnotation` IR node for `@name expression` annotations
- update: compilation pipeline to process the annotation expressions
- update: rewrite `OverloadsResolution` compiler pass so that it keeps the order of module definitions
- add: `Meta.get_annotation` builtin function that returns the result of annotation expression
- misc: improvements (private methods, lazy arguments, build.sbt cleanup)
2023-01-24 21:28:33 +03:00
Radosław Waśko
d2e57edc8b
Add Table.cross_join and Table.zip to In-Memory Table (#4063)
Implements https://www.pivotaltracker.com/story/show/184239059
2023-01-23 13:19:52 +00:00
Pavel Marek
fcc2163ae3
All Enso objects are hasheable (#3878)
* Hash codes prototype

* Remove Any.hash_code

* Improve caching of hashcode in atoms

* [WIP] Add Hash_Map type

* Implement Any.hash_code builtin for primitives and vectors

* Add some values to ValuesGenerator

* Fix example docs on Time_Zone.new

* [WIP] QuickFix for HashCodeTest before PR #3956 is merged

* Fix hash code contract in HashCodeTest

* Add times and dates values to HashCodeTest

* Fix docs

* Remove hashCodeForMetaInterop specialization

* Introduce snapshoting of HashMapBuilder

* Add unit tests for EnsoHashMap

* Remove duplicate test in Map_Spec.enso

* Hash_Map.to_vector caches result

* Hash_Map_Spec is a copy of Map_Spec

* Implement some methods in Hash_Map

* Add equalsHashMaps specialization to EqualsAnyNode

* get and insert operations are able to work with polyglot values

* Implement rest of Hash_Map API

* Add test that inserts elements with keys with same hash code

* EnsoHashMap.toDisplayString use builder storage directly

* Add separate specialization for host objects in EqualsAnyNode

* Fix specialization for host objects in EqualsAnyNode

* Add polyglot hash map tests

* EconomicMap keeps reference to EqualsNode and HashCodeNode.

Rather than passing these nodes to `get` and `insert` methods.

* HashMapTest run in polyglot context

* Fix containsKey index handling in snapshots

* Remove snapshots field from EnsoHashMapBuilder

* Prepare polyglot hash map handling.

- Hash_Map builtin methods are separate nodes

* Some bug fixes

* Remove ForeignMapWrapper.

We would have to wrap foreign maps in assignments for this to be efficient.

* Improve performance of Hash_Map.get_builtin

Also, if_nothing parameter is suspended

* Remove to_flat_vector.

Interop API requires nested vector (our previous to_vector implementation). Seems that I have misunderstood the docs  the first time I read it.

- to_vector does not sort the vector by keys by default

* Fix polyglot hash maps method dispatch

* Add tests that effectively test hash code implementation.

Via hash map that behaves like a hash set.

* Remove Hashcode_Spec

* Add some polyglot tests

* Add Text.== tests for NFD normalization

* Fix NFD normalization bug in Text.java

* Improve performance of EqualsAnyNode.equalsTexts specialization

* Properly compute hash code for Atom and cache it

* Fix Text specialization in HashCodeAnyNode

* Add Hash_Map_Spec as part of all tests

* Remove HashMapTest.java

Providing all the infrastructure for all the needed Truffle nodes is no longer manageable.

* Remove rest of identityHashCode message implementations

* Replace old Map with Hash_Map

* Add some docs

* Add TruffleBoundaries

* Formatting

* Fix some tests to accept unsorted vector from Map.to_vector

* Delete Map.first and Map.last methods

* Add specialization for big integer hash

* Introduce proper HashCodeTest and EqualsTest.

- Use jUnit theories.
- Call nodes directly

* Fix some specializations for primitives in HashCodeAnyNode

* Fix host object specialization

* Remove Any.hash_code

* Fix import in Map.enso

* Update changelog

* Reformat

* Add truffle boundary to BigInteger.hashCode

* Fix performance of HashCodeTest - initialize DataPoints just once

* Fix MetaIsATest

* Fix ValuesGenerator.textual - Java's char is not Text

* Fix indent in Map_Spec.enso

* Add maps to datapoints in HashCodeTest

* Add specialization for maps in HashCodeAnyNode

* Add multiLevelAtoms to ValuesGenerator

* Provide a workaround for non-linear key inserts

* Fix specializations for double and BigInteger

* Cosmetics

* Add truffle boundaries

* Add allowInlining=true to some truffle boundaries.

Increases performance a lot.

* Increase the size of vectors, and warmup time for Vector.Distinct benchmark

* Various small performance fixes.

* Fix Geo_Spec tests to accept unsorted Map.to_vector

* Implement Map.remove

* FIx Visualization tests to accept unsorted Map.to_vector

* Treat java.util.Properties as Map

* Add truffle boundaries

* Invoke polyglot methods on java.util.Properties

* Ignore python tests if python lang is missing
2023-01-19 10:33:25 +01:00
James Dunkerley
48e5ed9eea
Some little bits from Book Club week 1 (#4058)
- Add `get` to Table.
- Correct `Count Nothing` examples.
- Add `join` to File.
- Add `File_Format.all` listing all installed formats.
- Add some more ALIAS entries.
2023-01-18 11:46:13 +00:00
Radosław Waśko
8853053020
Division in Columns within InDB is integer based if both columns are integers (#4057)
Fixes https://www.pivotaltracker.com/story/show/184073099

# Important Notes
- Since now the only operator on columns for division, `/`, returns floats, it may be worth creating an additional `div` operator exposing integer division. But that will be done as a separate task aligning column operator APIs.
2023-01-17 20:29:25 +00:00
Radosław Waśko
082e0bfd0d
Add Table.union to the In-Memory Table. (#4052)
Implements https://www.pivotaltracker.com/story/show/183854144
2023-01-17 00:34:57 +00:00
Jaroslav Tulach
917176873d
visualizationResultToBytes converts anything that looks like a string (#4045)
Use `InteropLibrary.isString` and `asString` to convert any string value to `byte[]`

# Important Notes
Also contains a support for `Metadata.assertInCode` to help locating the right place in the code snippets.
2023-01-13 12:30:27 +00:00
James Dunkerley
ccde47e24e
Simple Warnings visualization. (#4043)
A simple first pass at showing warnings as a visualization.

![image](https://user-images.githubusercontent.com/4699705/212064721-6452d653-5421-4937-b70e-8ce58d92bff5.png)

Ideally, we would have a PayloadType which showed that the node had warnings attached to it, but that is significantly more work. So as a first pass to allow us to see the warnings, I have added a simple JS visualization.

Also update the file upload so puts valid code in.

https://user-images.githubusercontent.com/4699705/212096242-048b6301-6e7f-4c5b-a4e5-809640dbfb17.mp4
2023-01-13 11:28:57 +00:00
James Dunkerley
c4c35c92b7
Align Vector API with design, add some extra functions from AoC (#4026)
**Vector**
- Adjusted `Vector.sort` to be `Vector.sort order on by`.
- Adjusted other sort to use `order` for direction argument.
- Added `insert`, `remove`, `index_of` and `last_index_of` to `Vector`.
- Added `start` and `if_missing` arguments to `find` on `Vector`, and adjusted default is `Not_Found` error.
- Added type checking to `+` on `Vector`.
- Altered `first`, `second` and `last` to error with `Index_Out_Of_Bounds` on `Vector`.
- Removed `sum`, `exists`, `head`, `init`, `tail`, `rest`, `append`, `prepend` from `Vector`.

**Pair**
- Added `last`, `any`, `all`, `contains`, `find`, `index_of`, `last_index_of`, `reverse`, `each`, `fold` and `reduce` to `Pair`.
- Added `get` to `Pair`.

**Range**
- Added `first`, `second`, `index_of`, `last_index_of`, `reverse` and `reduce` to `Range`.
- Added `at` and `get` to `Range`.
- Added `start` and `if_missing` arguments to `find` on `Range`.
- Simplified `last` and `length` of `Range`.
- Removed `exists` from `Range`.

**List**
- Added `second`, `find`, `index_of`, `last_index_of`, `reverse` and `reduce` to `Range`.
- Added `at` and `get` to `List`.
- Removed `exists` from `List`.
- Made `all` short-circuit if any fail on `List`.
- Altered `is_empty` to not compute the length of `List`.
- Altered `first`, `tail`, `head`, `init` and `last` to error with `Index_Out_Of_Bounds` on `List`.

**Others**
- Added `first`, `second`, `last`, `get` to `Text`.
- Added wrapper methods to the Random_Number_Generator so you can get random values more easily.
- Adjusted `Aggregate_Column` to operate on the first column by default.
- Added `contains_key` to `Map`.
- Added ALIAS to `row_count` and `order_by`.
2023-01-12 13:32:24 +00:00
Jaroslav Tulach
fa22e467bf
Catch Panic and Error from Atom.to_text and yield detailed error message (#4034)
Don't propagate errors from `toDisplayString` - construct an error message with `Atom.toString`.

# Important Notes
> currently a failure in to_text is swallowed by `toString` and we cannot detect that something went wrong during the serialization

Not sure how satisfying the solution is, but the error swallowing happens in Truffle and there is little to do with it. We can just catch the error ourselves and produce some meaningful string.
2023-01-12 08:07:26 +00:00
Radosław Waśko
0088096a58
Implement Distinct for the Database backends (#4027)
Implements https://www.pivotaltracker.com/story/show/182307281
2023-01-11 22:46:54 +00:00
Hubert Plociniczak
ae0889e843
Make ArrayOverBuffer behave like an Array/Array.sort no longer mutates the Array (#4022)
Most of the problems with accessing `ArrayOverBuffer` have been resolved by using `CoerceArrayNode` (https://github.com/enso-org/enso/pull/3817). In `Array.sort` we still however specialized on Array which wasn't compatible with `ArrayOverBuffer`. Similarly sorting JS or Python arrays wouldn't work.

Added a specialization to `Array.sort` to deal with that case. A generic specialization (with `hasArrayElements`) not only handles `ArrayOverBuffer` but also polyglot arrays coming from JS or Python. We could have an additional specialization for `ArrayOverBuffer` only (removed in the last commit) that returns `ArrayOverBuffer` rather than `Array` although that adds additional complexity which so far is unnecessary.

Also fixed an example in `Array.enso` by providing a default argument.
2023-01-09 17:49:49 +00:00
Jaroslav Tulach
41b2aac39f
Removing Unsafe.set_atom_field (#4023)
Introducing `Meta.atom_with_hole` to create an `Atom` _with a hole_ that is then _safely_ filled in later.
2023-01-09 13:39:14 +00:00
Hubert Plociniczak
3379ce51f2
Report failed name resolutions in type signatures (#4030)
Compiler performed name resolution of literals in type signatures but would silently fail to report any problems.
This meant that wrong names or forgotten imports would sneak in to stdlib.

This change introduces 2 main changes:
1) failed name resolutions are appended in `TypeNames` pass
2) `GatherDiagnostics` pass also collects and reports failures from type
signatures IR

Updated stdlib so that it passes given the correct gatekeepers in place.
2023-01-09 10:35:36 +00:00
Radosław Waśko
8c661fdb74
Database Joins (#4007)
Implements https://www.pivotaltracker.com/story/show/184032869

# Important Notes
- Currently we get failures in Full joins on Postgres which show a more serious problem - amending equality to ensure that `[NULL = NULL] == True` breaks hash/merge based indexing - so such joins will be extremely inefficient. All our joins currently rely on this notion of equality which will mean all of our DB joins will be extremely inefficient.
- We need to find a solution that will support nulls and still work OK with indices (but after exploring a few approaches: `COALESCE(a = b, a IS NULL AND b is NULL)`, `a IS NOT DISTINCT FROM b`, `(a = b) OR (a IS NULL AND b is NULL)`; all of which did not work (they all result in `ERROR: FULL JOIN is only supported with merge-joinable or hash-joinable join conditions`) I'm less certain that it is possible. Alternatively, we may need to change the NULL semantics to align it with SQL - this seems like likely the simpler solution, allowing us to generate simple, reliable SQL - the NULL=NULL solution will be cornering us into nasty workarounds very dependent on the particular backend.
2023-01-05 10:36:22 +00:00
Dmitry Bushev
1e5e2327ab
Improve performance of Text.compare_to (#4012)
PR adds a flag to `Text` implementation tracking whether it is in a FCD normal form. Then this information can be used in the `Normalizer.compare` method.



| Benchmark name | Old (ms) | With flag (ms)
| --- | --- | ---
| Unicode very short | 40.29 | 40.04
| Unicode medium | 9.07 | 1.99
| Unicode big - random | 115.39 | 0.35
| Unicode big - early difference | 107.02 | 0.54
| Unicode big - late difference | 749.81 | 94.73
| ASCII very short | 28.13 | 31.13
| ASCII medium | 4.58 | 2.26
| ASCII big - random | 42.68 | 0.26
| ASCII big - early difference | 30.91 | 0.32
| ASCII big - late difference | 66.29 | 42.72

Full benchmark output.
[bench_old.txt](https://github.com/enso-org/enso/files/10325202/bench_old.txt)
[bench_new.txt](https://github.com/enso-org/enso/files/10325201/bench_new.txt)
2023-01-02 17:09:03 +00:00