Support ibis-framework version 3

.github/workflows/test.yaml

@@ -58,7 +58,6 @@ jobs:
           conda activate test-environment
           conda list
           doit develop_install ${{ env.HV_REQUIREMENTS }}
-          conda install $CHANS_DEV "ibis-sqlite=2"
           python -c "from param import version; print(version.Version.setup_version('.', 'holoviews', archive_commit='$Format:%h$'))"
           echo "-----"
           git describe

holoviews/core/data/ibis.py

@@ -1,5 +1,6 @@
 import sys
 import numpy
+from packaging.version import Version
 
 try:
     from collections.abc import Iterable
@@ -14,6 +15,13 @@
 from .util import cached
 
 
+try:
+    import ibis
+    ibis_version =  Version(ibis.__version__)
+except ImportError:
+    pass
+
+
 class IbisInterface(Interface):
 
     types = ()
@@ -125,9 +133,15 @@ def values(
     ):
         dimension = dataset.get_dimension(dimension, strict=True)
         data = dataset.data[dimension.name]
+        if (
+            ibis_version > Version("3")
+            and isinstance(data, ibis.expr.types.AnyColumn)
+            and not expanded
+        ):
+            data = dataset.data[[dimension.name]]
         if not expanded:
             data = data.distinct()
-        return data if keep_index or not compute else data.execute().values
+        return data if keep_index or not compute else data.execute().values.flatten()
 
     @classmethod
     def histogram(cls, expr, bins, density=True, weights=None):

setup.py

@@ -70,6 +70,9 @@
 
 extras_require["unit_tests"] = extras_require["examples"] + extras_require["tests"]
 
+if sys.version_info >= (3, 7):
+    extras_require["unit_tests"].append("ibis-sqlite")
+
 extras_require["basic_tests"] = (
     extras_require["tests"]
     + ["matplotlib >=3", "bokeh >=2.4.3", "pandas"]