Running Standard.Tableau in dual JVM mode #14607

JaroslavTulach · 2026-01-10T06:24:45Z

Pull Request Description

After the magnificent success of
let's remove one more library from the native image enso image

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

All code follows the
Scala,
Java,
Unit tests continue to work in mock dual JVM mode:

sbt:enso> runEngineDistribution --jvm 
 --vm.D=polyglot.enso.classLoading=Standard.Tableau:guest,hosted 
 --run test/Tableau_Tests

JaroslavTulach · 2026-01-11T10:56:31Z

distribution/lib/Standard/Tableau/0.0.0-dev/src/Hyper_File.enso

    if schemas.distinct.length <= 1 then (Table_Viz_Data.GenericGrid [Table_Viz_Header.Link "Table" "Table" "read {{@Table}}"] [tables]) else
        (Table_Viz_Data.GenericGrid [Table_Viz_Header.Label "Schema", Table_Viz_Header.Link "Table" "Table" "read {{@Table}} {{@Schema}}"] [schemas, tables])
+
+private wrap_io_exception (file : File | Nothing) io_exception =


Another copy of IOException handling code in 2f37d20

taken from https://github.com/enso-org/enso/pull/14568/files#r2664926100

Proper fix: Avoid fragile Java exception to Enso error/panic conversions #14601

enso-bot · 2026-01-12T04:37:49Z

Jaroslav Tulach reports a new STANDUP for yesterday (2026-01-11):

Progress: .

Tableau into dual JVM mode: Running Standard.Tableau in dual JVM mode #14607
necessary fixes to make CI happier: ee0b17b
recognizing local types: b96b610 It should be finished by 2026-01-15.

JaroslavTulach · 2026-01-12T04:42:02Z

There two failures in Write Tables:

❌ should be able to write a decimal column [91ms]
- Reason: An unexpected error was returned: (Hyper_Unsupported_Type.Error '3.14 type: java.math.BigDecimal')
❌ in dry run mode only first 1000 records are written to a temporary file
- Expected only warning Dry_Run_Operation, but a dataflow error has been matched: Tableau Hyper files do not support columns of type 0 type: java.lang.Long

JaroslavTulach · 2026-01-12T05:15:51Z

std-bits/tableau/src/main/java/org/enso/tableau/HyperFormat.java

+                if (v.getMetaObject() instanceof Value meta) {
+                  type = meta.getMetaQualifiedName();
+                }
+                if ("java.math.BigDecimal".equals(type)) {


Another case of BigDecimal traveling between dual JVMs

just like Run Standard.Snowflake in dual JVM mode #14474 (comment)

JaroslavTulach · 2026-01-12T05:18:30Z

std-bits/tableau/src/main/java/org/enso/tableau/HyperFormat.java

            case LocalDate ld -> inserter.add(ld);
            case LocalTime lt -> inserter.add(lt);
            case ZonedDateTime zdt -> inserter.add(zdt);
            case BigDecimal bd -> inserter.add(bd);


This code is different than the classical switch over StorageType. That one can be fixed by making the StorageType local. Is there any reason why this code has to be different and not follow the typical switch (storageType) pattern?

Akirathan

Don't forget to also delete std-bits/tableau/**/resources/**/native directory with NI config files.

distribution/lib/Standard/Tableau/0.0.0-dev/src/Hyper_Table.enso

enso-bot · 2026-01-13T04:51:32Z

Jaroslav Tulach reports a new STANDUP for yesterday (2026-01-12):

Progress: .

fixed two remaining failing tests in Standard.Tableau: 2592752
reporting ProblemAggregator problem: Avoid ProblemAggregator problematic Java to Enso conversions #14609
building & investigation of Ydoc server
Atom constructors: Registering cons the normal way provides proper defaulted arguments support #14611
meetings It should be finished by 2026-01-15.

enso-bot · 2026-01-14T05:13:55Z

Jaroslav Tulach reports a new STANDUP for yesterday (2026-01-13):

Progress: .

Standard.Tableau in dual JVM mode merged: Running Standard.Tableau in dual JVM mode #14607
Testing Error.throw in Java: Show how to throw/return Error in Java and process it in Enso #14622
pair debugging of Ydoc server with Dmitry
merged Trace local variable read/write via Truffle instrumentation #14540
making tests compile and run: 7d9859b
planning meeting It should be finished by 2026-01-15.

- #14607 reveals a problem when running ```ruby from Standard.Base import all from Standard.Table import all from Standard.Tableau import all main = node1 = Data.read '/tmp/x.hyper' node2 = node1.read 'Extract' node3 = node2.set (expr 'year([Date])') "Year" node3.get "Year" . to_vector ``` in _dual JVM_ (mock) mode: ``` sbt:enso> runEngineDistribution --vm.D=polyglot.enso.classLoading=Standard.Tableau:guest,hosted --run hyper.enso Error:Argument_Mismatch Unsupported type: class com.oracle.truffle.polyglot.PolyglotMapAndFunction (expected date/time type). ``` - builds upon #14309 - and upon #14471

Running Standard.Tableau in dual JVM mode

2265316

JaroslavTulach self-assigned this Jan 10, 2026

JaroslavTulach requested review from 4e6, AdRiley, Akirathan, GregoryTravis, hubertp and jdunkerley as code owners January 10, 2026 06:24

Note in changelog

7a03879

jdunkerley approved these changes Jan 10, 2026

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JaroslavTulach added 4 commits January 11, 2026 08:04

Use proper ProblemAgregator class

2bc5a6a

Request proper Java_Table and Java_Column class when asking for a Table

ee0b17b

Two new default arguments for to_java_table API

2dc6895

Another copy of IOException handling code

2f37d20

github-actions bot added the -libs-API-change-Table Marks a PR that changes the public API of Standard.Table label Jan 11, 2026

JaroslavTulach commented Jan 11, 2026

View reviewed changes

Try harder to convert data to local data

d8730c9

JaroslavTulach force-pushed the wip/jtulach/TableauInDualJvm branch from b96b610 to d8730c9 Compare January 11, 2026 20:17

JaroslavTulach added 2 commits January 12, 2026 06:05

Convert BigDecimal like object to BigDecimal

9ab85b8

Recognize other values and insert appropriatelly

2d153e5

JaroslavTulach commented Jan 12, 2026

View reviewed changes

JaroslavTulach requested a review from jdunkerley January 12, 2026 05:19

Adding back the keeper of the transient directory

2592752

Akirathan approved these changes Jan 12, 2026

View reviewed changes

JaroslavTulach commented Jan 12, 2026

View reviewed changes

distribution/lib/Standard/Tableau/0.0.0-dev/src/Hyper_Table.enso Show resolved Hide resolved

Removing native image configuration files for tableau

c888e18

JaroslavTulach added this to Issues Board Jan 13, 2026

github-project-automation bot moved this to 🌟 Q/A review in Issues Board Jan 13, 2026

JaroslavTulach moved this from 🌟 Q/A review to 👁️ Code review in Issues Board Jan 13, 2026

JaroslavTulach added -libs Libraries: New libraries to be implemented -compiler labels Jan 13, 2026

JaroslavTulach merged commit 36da1a3 into develop Jan 13, 2026
75 checks passed

github-project-automation bot moved this from 👁️ Code review to 🟢 Accepted in Issues Board Jan 13, 2026

JaroslavTulach deleted the wip/jtulach/TableauInDualJvm branch January 13, 2026 15:12

Akirathan mentioned this pull request Jan 14, 2026

Remove Standard.Image from native image #14627

Merged

2 tasks

JaroslavTulach mentioned this pull request Jan 14, 2026

Using Arrow Date32 format to transfer LocalDate across JVMs #14632

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