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|
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pqarrow
import (
"context"
"testing"
"github.com/apache/arrow-go/v18/arrow"
"github.com/apache/arrow-go/v18/arrow/array"
"github.com/apache/arrow-go/v18/arrow/extensions"
"github.com/apache/arrow-go/v18/arrow/memory"
"github.com/google/uuid"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestNonNullableSingleList(t *testing.T) {
// translates to the following parquet schema:
// required group bag {
// repeated group [unseen] (List) {
// required int64 Entires;
// }
// }
// So:
// def level 0: a null entry
// def level 1: a non-null entry
bldr := array.NewListBuilder(memory.DefaultAllocator, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
vb := bldr.ValueBuilder().(*array.Int64Builder)
bldr.Append(true)
vb.Append(1)
bldr.Append(true)
vb.Append(2)
vb.Append(3)
bldr.Append(true)
vb.Append(4)
vb.Append(5)
vb.Append(6)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, false)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{2, 2, 2, 2, 2, 2}, result.defLevels)
assert.Equal(t, []int16{0, 0, 1, 0, 1, 1}, result.repLevels)
assert.Len(t, result.postListVisitedElems, 1)
assert.EqualValues(t, 0, result.postListVisitedElems[0].start)
assert.EqualValues(t, 6, result.postListVisitedElems[0].end)
}
// next group of tests translates to the following parquet schema:
// optional group bag {
// repeated group [unseen] (List) {
// optional int64 Entires;
// }
// }
// So:
// def level 0: a null list
// def level 1: an empty list
// def level 2: a null entry
// def level 3: a non-null entry
func TestNullableSingleListAllNulls(t *testing.T) {
bldr := array.NewListBuilder(memory.DefaultAllocator, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
bldr.AppendNull()
bldr.AppendNull()
bldr.AppendNull()
bldr.AppendNull()
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{0, 0, 0, 0}, result.defLevels)
assert.Equal(t, []int16{0, 0, 0, 0}, result.repLevels)
}
func TestNullableSingleListAllEmpty(t *testing.T) {
bldr := array.NewListBuilder(memory.DefaultAllocator, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
bldr.Append(true)
bldr.Append(true)
bldr.Append(true)
bldr.Append(true)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{1, 1, 1, 1}, result.defLevels)
assert.Equal(t, []int16{0, 0, 0, 0}, result.repLevels)
}
func TestNullableSingleListAllNullEntries(t *testing.T) {
bldr := array.NewListBuilder(memory.DefaultAllocator, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
vb := bldr.ValueBuilder().(*array.Int64Builder)
bldr.Append(true)
vb.AppendNull()
bldr.Append(true)
vb.AppendNull()
bldr.Append(true)
vb.AppendNull()
bldr.Append(true)
vb.AppendNull()
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{2, 2, 2, 2}, result.defLevels)
assert.Equal(t, []int16{0, 0, 0, 0}, result.repLevels)
assert.Len(t, result.postListVisitedElems, 1)
assert.EqualValues(t, 0, result.postListVisitedElems[0].start)
assert.EqualValues(t, 4, result.postListVisitedElems[0].end)
}
func TestNullableSingleListAllPresentEntries(t *testing.T) {
bldr := array.NewListBuilder(memory.DefaultAllocator, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
vb := bldr.ValueBuilder().(*array.Int64Builder)
bldr.Append(true)
bldr.Append(true)
bldr.Append(true)
vb.Append(1)
bldr.Append(true)
bldr.Append(true)
vb.Append(2)
vb.Append(3)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{1, 1, 3, 1, 3, 3}, result.defLevels)
assert.Equal(t, []int16{0, 0, 0, 0, 0, 1}, result.repLevels)
assert.Len(t, result.postListVisitedElems, 1)
assert.EqualValues(t, 0, result.postListVisitedElems[0].start)
assert.EqualValues(t, 3, result.postListVisitedElems[0].end)
}
func TestNullableSingleListSomeNullEntriesSomeNullLists(t *testing.T) {
bldr := array.NewListBuilder(memory.DefaultAllocator, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
vb := bldr.ValueBuilder().(*array.Int64Builder)
bldr.Append(false)
bldr.Append(true)
vb.AppendValues([]int64{1, 2, 3}, nil)
bldr.Append(true)
bldr.Append(true)
bldr.AppendNull()
bldr.AppendNull()
bldr.Append(true)
vb.AppendValues([]int64{4, 5}, nil)
bldr.Append(true)
vb.AppendNull()
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{0, 3, 3, 3, 1, 1, 0, 0, 3, 3, 2}, result.defLevels)
assert.Equal(t, []int16{0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0}, result.repLevels)
}
// next group of tests translate to the following parquet schema:
//
// optional group bag {
// repeated group outer_list (List) {
// optional group nullable {
// repeated group inner_list (List) {
// optional int64 Entries;
// }
// }
// }
// }
// So:
// def level 0: null outer list
// def level 1: empty outer list
// def level 2: null inner list
// def level 3: empty inner list
// def level 4: null entry
// def level 5: non-null entry
func TestNestedListsWithSomeEntries(t *testing.T) {
listType := arrow.ListOf(arrow.PrimitiveTypes.Int64)
bldr := array.NewListBuilder(memory.DefaultAllocator, listType)
defer bldr.Release()
nestedBldr := bldr.ValueBuilder().(*array.ListBuilder)
vb := nestedBldr.ValueBuilder().(*array.Int64Builder)
// produce: [null, [[1, 2, 3], [4, 5]], [[], [], []], []]
bldr.AppendNull()
bldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{1, 2, 3}, nil)
nestedBldr.Append(true)
vb.AppendValues([]int64{4, 5}, nil)
bldr.Append(true)
nestedBldr.Append(true)
nestedBldr.Append(true)
nestedBldr.Append(true)
bldr.Append(true)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{0, 5, 5, 5, 5, 5, 3, 3, 3, 1}, result.defLevels)
assert.Equal(t, []int16{0, 0, 2, 2, 1, 2, 0, 1, 1, 0}, result.repLevels)
}
func TestNestedListsWithSomeNulls(t *testing.T) {
listType := arrow.ListOf(arrow.PrimitiveTypes.Int64)
bldr := array.NewListBuilder(memory.DefaultAllocator, listType)
defer bldr.Release()
nestedBldr := bldr.ValueBuilder().(*array.ListBuilder)
vb := nestedBldr.ValueBuilder().(*array.Int64Builder)
// produce: [null, [[1, null, 3], null, null], [[4, 5]]]
bldr.AppendNull()
bldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{1, 0, 3}, []bool{true, false, true})
nestedBldr.AppendNull()
nestedBldr.AppendNull()
bldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{4, 5}, nil)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{0, 5, 4, 5, 2, 2, 5, 5}, result.defLevels)
assert.Equal(t, []int16{0, 0, 2, 2, 1, 1, 0, 2}, result.repLevels)
}
func TestNestedListsSomeNullsSomeEmpty(t *testing.T) {
listType := arrow.ListOf(arrow.PrimitiveTypes.Int64)
bldr := array.NewListBuilder(memory.DefaultAllocator, listType)
defer bldr.Release()
nestedBldr := bldr.ValueBuilder().(*array.ListBuilder)
vb := nestedBldr.ValueBuilder().(*array.Int64Builder)
// produce: [null, [[1, null, 3], [], []], [[4, 5]]]
bldr.AppendNull()
bldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{1, 0, 3}, []bool{true, false, true})
nestedBldr.Append(true)
nestedBldr.Append(true)
bldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{4, 5}, nil)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{0, 5, 4, 5, 3, 3, 5, 5}, result.defLevels)
assert.Equal(t, []int16{0, 0, 2, 2, 1, 1, 0, 2}, result.repLevels)
}
func TestNestedExtensionListsWithSomeNulls(t *testing.T) {
mem := memory.NewCheckedAllocator(memory.DefaultAllocator)
defer mem.AssertSize(t, 0)
listType := arrow.ListOf(extensions.NewUUIDType())
bldr := array.NewListBuilder(mem, listType)
defer bldr.Release()
nestedBldr := bldr.ValueBuilder().(*array.ListBuilder)
vb := nestedBldr.ValueBuilder().(*extensions.UUIDBuilder)
uuid1 := uuid.New()
uuid3 := uuid.New()
uuid4 := uuid.New()
uuid5 := uuid.New()
// produce: [null, [[uuid1, null, uuid3], null, null], [[uuid4, uuid5]]]
bldr.AppendNull()
bldr.Append(true)
nestedBldr.Append(true)
vb.Append(uuid1)
vb.AppendNull()
vb.Append(uuid3)
nestedBldr.AppendNull()
nestedBldr.AppendNull()
bldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]uuid.UUID{uuid4, uuid5}, nil)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{0, 5, 4, 5, 2, 2, 5, 5}, result.defLevels)
assert.Equal(t, []int16{0, 0, 2, 2, 1, 1, 0, 2}, result.repLevels)
assert.Equal(t, result.leafArr.NullN(), 1)
}
// triplenested translates to parquet:
//
// optional group bag {
// repeated group outer_list (List) {
// option group nullable {
// repeated group middle_list (List) {
// option group nullable {
// repeated group inner_list (List) {
// optional int64 Entries;
// }
// }
// }
// }
// }
// }
// So:
// def level 0: a outer list
// def level 1: an empty outer list
// def level 2: a null middle list
// def level 3: an empty middle list
// def level 4: an null inner list
// def level 5: an empty inner list
// def level 6: a null entry
// def level 7: a non-null entry
func TestTripleNestedAllPresent(t *testing.T) {
listType := arrow.ListOf(arrow.PrimitiveTypes.Int64)
nestedListType := arrow.ListOf(listType)
bldr := array.NewListBuilder(memory.DefaultAllocator, nestedListType)
defer bldr.Release()
dblNestedBldr := bldr.ValueBuilder().(*array.ListBuilder)
nestedBldr := dblNestedBldr.ValueBuilder().(*array.ListBuilder)
vb := nestedBldr.ValueBuilder().(*array.Int64Builder)
// produce: [ [[[1, 2, 3], [4, 5, 6]], [[7, 8, 9]]] ]
bldr.Append(true)
dblNestedBldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{1, 2, 3}, nil)
nestedBldr.Append(true)
vb.AppendValues([]int64{4, 5, 6}, nil)
dblNestedBldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{7, 8, 9}, nil)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{7, 7, 7, 7, 7, 7, 7, 7, 7}, result.defLevels)
assert.Equal(t, []int16{0, 3, 3, 2, 3, 3, 1, 3, 3}, result.repLevels)
}
func TestTripleNestedSomeNullsSomeEmpty(t *testing.T) {
listType := arrow.ListOf(arrow.PrimitiveTypes.Int64)
nestedListType := arrow.ListOf(listType)
bldr := array.NewListBuilder(memory.DefaultAllocator, nestedListType)
defer bldr.Release()
dblNestedBldr := bldr.ValueBuilder().(*array.ListBuilder)
nestedBldr := dblNestedBldr.ValueBuilder().(*array.ListBuilder)
vb := nestedBldr.ValueBuilder().(*array.Int64Builder)
// produce: [
// [null, [[1, null, 3], []], []], first row
// [[[]], [[], [1, 2]], null, [[3]]], second row
// null, third row
// [] fourth row
// ]
// first row
bldr.Append(true)
dblNestedBldr.AppendNull()
dblNestedBldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{1, 0, 3}, []bool{true, false, true})
nestedBldr.Append(true)
dblNestedBldr.Append(true)
// second row
bldr.Append(true)
dblNestedBldr.Append(true)
nestedBldr.Append(true)
dblNestedBldr.Append(true)
nestedBldr.Append(true)
nestedBldr.Append(true)
vb.AppendValues([]int64{1, 2}, nil)
dblNestedBldr.AppendNull()
dblNestedBldr.Append(true)
nestedBldr.Append(true)
vb.Append(3)
// third row
bldr.AppendNull()
// fourth row
bldr.Append(true)
arr := bldr.NewListArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Equal(t, []int16{
2, 7, 6, 7, 5, 3, // first row
5, 5, 7, 7, 2, 7, // second row
0, // third row
1,
}, result.defLevels)
assert.Equal(t, []int16{
0, 1, 3, 3, 2, 1, // first row
0, 1, 2, 3, 1, 1, // second row
0, 0,
}, result.repLevels)
}
func TestStruct(t *testing.T) {
structType := arrow.StructOf(arrow.Field{Name: "list", Type: arrow.ListOf(arrow.PrimitiveTypes.Int64), Nullable: true},
arrow.Field{Name: "Entries", Type: arrow.PrimitiveTypes.Int64, Nullable: true})
bldr := array.NewStructBuilder(memory.DefaultAllocator, structType)
defer bldr.Release()
entryBldr := bldr.FieldBuilder(1).(*array.Int64Builder)
listBldr := bldr.FieldBuilder(0).(*array.ListBuilder)
vb := listBldr.ValueBuilder().(*array.Int64Builder)
// produce: [ {"Entries": 1, "list": [2, 3]}, {"Entries": 4, "list": [5, 6]}, null]
bldr.Append(true)
entryBldr.Append(1)
listBldr.Append(true)
vb.AppendValues([]int64{2, 3}, nil)
bldr.Append(true)
entryBldr.Append(4)
listBldr.Append(true)
vb.AppendValues([]int64{5, 6}, nil)
bldr.AppendNull()
arr := bldr.NewArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.writeAll(ctx)
require.NoError(t, err)
assert.Len(t, result, 2)
assert.Equal(t, []int16{4, 4, 4, 4, 0}, result[0].defLevels)
assert.Equal(t, []int16{0, 1, 0, 1, 0}, result[0].repLevels)
assert.Equal(t, []int16{2, 2, 0}, result[1].defLevels)
assert.Nil(t, result[1].repLevels)
}
func TestFixedSizeListNullableElems(t *testing.T) {
bldr := array.NewFixedSizeListBuilder(memory.DefaultAllocator, 2, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
vb := bldr.ValueBuilder().(*array.Int64Builder)
bldr.AppendValues([]bool{false, true, true, false})
vb.AppendValues([]int64{2, 3, 4, 5}, nil)
// produce: [null, [2, 3], [4, 5], null]
arr := bldr.NewArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.writeAll(ctx)
require.NoError(t, err)
assert.Len(t, result, 1)
assert.Equal(t, []int16{0, 3, 3, 3, 3, 0}, result[0].defLevels)
assert.Equal(t, []int16{0, 0, 1, 0, 1, 0}, result[0].repLevels)
// null slots take up space in a fixed size list (they can in variable
// size lists as well) but the actual written values are only the middle
// elements
assert.Len(t, result[0].postListVisitedElems, 1)
assert.EqualValues(t, 2, result[0].postListVisitedElems[0].start)
assert.EqualValues(t, 6, result[0].postListVisitedElems[0].end)
}
func TestFixedSizeListMissingMiddleTwoVisitedRanges(t *testing.T) {
bldr := array.NewFixedSizeListBuilder(memory.DefaultAllocator, 2, arrow.PrimitiveTypes.Int64)
defer bldr.Release()
vb := bldr.ValueBuilder().(*array.Int64Builder)
bldr.AppendValues([]bool{true, false, true})
vb.AppendValues([]int64{0, 1, 2, 3}, nil)
// produce: [[0, 1], null, [2, 3]]
arr := bldr.NewArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, true)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.writeAll(ctx)
require.NoError(t, err)
assert.Len(t, result, 1)
assert.Equal(t, []int16{3, 3, 0, 3, 3}, result[0].defLevels)
assert.Equal(t, []int16{0, 1, 0, 0, 1}, result[0].repLevels)
// null slots take up space in a fixed size list (they can in variable
// size lists as well) but the actual written values are only the middle
// elements
assert.Len(t, result[0].postListVisitedElems, 2)
assert.EqualValues(t, 0, result[0].postListVisitedElems[0].start)
assert.EqualValues(t, 2, result[0].postListVisitedElems[0].end)
assert.EqualValues(t, 4, result[0].postListVisitedElems[1].start)
assert.EqualValues(t, 6, result[0].postListVisitedElems[1].end)
}
func TestPrimitiveNonNullable(t *testing.T) {
bldr := array.NewInt64Builder(memory.DefaultAllocator)
defer bldr.Release()
bldr.AppendValues([]int64{1, 2, 3, 4}, nil)
arr := bldr.NewArray()
defer arr.Release()
mp, err := newMultipathLevelBuilder(arr, false)
require.NoError(t, err)
defer mp.Release()
ctx := arrowCtxFromContext(NewArrowWriteContext(context.Background(), nil))
result, err := mp.write(0, ctx)
require.NoError(t, err)
assert.Nil(t, result.defLevels)
assert.Nil(t, result.repLevels)
assert.Len(t, result.postListVisitedElems, 1)
assert.EqualValues(t, 0, result.postListVisitedElems[0].start)
assert.EqualValues(t, 4, result.postListVisitedElems[0].end)
}
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