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package goparquet
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/fraugster/parquet-go/parquet"
)
func newIntStore() *ColumnStore {
d := newStore(&int32Store{ColumnParameters: &ColumnParameters{}}, parquet.Encoding_PLAIN, false)
return d
}
func TestOneColumn(t *testing.T) {
row := schema{}
require.NoError(t, row.AddColumn("DocID", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REQUIRED)))
row.resetData()
data := []map[string]interface{}{
{"DocID": int32(10)},
{"DocID": int32(20)},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("DocID")
require.NoError(t, err)
assert.Equal(t, uint16(0), d.MaxDefinitionLevel())
assert.Equal(t, uint16(0), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(20)}, d.data.values.assemble())
assert.Equal(t, []int32{0, 0}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 0}, d.data.rLevels.toArray())
// Now reading data
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestOneColumnOptional(t *testing.T) {
row := schema{}
require.NoError(t, row.AddColumn("DocID", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_OPTIONAL)))
row.resetData()
data := []map[string]interface{}{
{"DocID": int32(10)},
{},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("DocID")
require.NoError(t, err)
assert.Equal(t, uint16(1), d.MaxDefinitionLevel())
assert.Equal(t, uint16(0), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10)}, d.data.values.assemble())
assert.Equal(t, []int32{1, 0}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 0}, d.data.rLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestOneColumnRepeated(t *testing.T) {
row := schema{}
require.NoError(t, row.AddColumn("DocID", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REPEATED)))
row.resetData()
data := []map[string]interface{}{
{"DocID": []int32{10, 20}},
{},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("DocID")
require.NoError(t, err)
assert.Equal(t, uint16(1), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(20)}, d.data.values.assemble())
assert.Equal(t, []int32{1, 1, 0}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 1, 0}, d.data.rLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestComplexPart1(t *testing.T) {
row := &schema{}
require.NoError(t, row.AddGroup("Name", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddGroup("Name.Language", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddColumn("Name.Language.Code", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REQUIRED)))
require.NoError(t, row.AddColumn("Name.Language.Country", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_OPTIONAL)))
require.NoError(t, row.AddColumn("Name.URL", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_OPTIONAL)))
row.resetData()
data := []map[string]interface{}{
{
"Name": []map[string]interface{}{
{
"Language": []map[string]interface{}{
{
"Code": int32(1),
"Country": int32(100),
},
{
"Code": int32(2),
},
},
"URL": int32(10),
},
{
"URL": int32(11),
},
{
"Language": []map[string]interface{}{
{
"Code": int32(3),
"Country": int32(101),
},
},
},
},
},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("Name.Language.Code")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(2), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(1), int32(2), int32(3)}, d.data.values.assemble())
assert.Equal(t, []int32{2, 2, 1, 2}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 2, 1, 1}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Name.Language.Country")
require.NoError(t, err)
assert.Equal(t, uint16(3), d.MaxDefinitionLevel())
assert.Equal(t, uint16(2), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(100), int32(101)}, d.data.values.assemble())
assert.Equal(t, []int32{3, 2, 1, 3}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 2, 1, 1}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Name.URL")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(11)}, d.data.values.assemble())
assert.Equal(t, []int32{2, 2, 1}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 1, 1}, d.data.rLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestComplexPart2(t *testing.T) {
row := &schema{}
require.NoError(t, row.AddGroup("Links", parquet.FieldRepetitionType_OPTIONAL))
require.NoError(t, row.AddColumn("Links.Backward", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REPEATED)))
require.NoError(t, row.AddColumn("Links.Forward", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REPEATED)))
row.resetData()
data := []map[string]interface{}{
{
"Links": map[string]interface{}{
"Forward": []int32{20, 40, 60},
},
},
{
"Links": map[string]interface{}{
"Backward": []int32{10, 30},
"Forward": []int32{80},
},
},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("Links.Forward")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(20), int32(40), int32(60), int32(80)}, d.data.values.assemble())
assert.Equal(t, []int32{2, 2, 2, 2}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 1, 1, 0}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Links.Backward")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(30)}, d.data.values.assemble())
assert.Equal(t, []int32{1, 2, 2}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 0, 1}, d.data.rLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestComplex(t *testing.T) {
// Based on this picture https://i.stack.imgur.com/raOFu.png from this doc https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/36632.pdf
row := &schema{}
require.NoError(t, row.AddColumn("DocId", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REQUIRED)))
require.NoError(t, row.AddGroup("Links", parquet.FieldRepetitionType_OPTIONAL))
require.NoError(t, row.AddColumn("Links.Backward", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REPEATED)))
require.NoError(t, row.AddColumn("Links.Forward", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REPEATED)))
require.NoError(t, row.AddGroup("Name", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddGroup("Name.Language", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddColumn("Name.Language.Code", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REQUIRED)))
require.NoError(t, row.AddColumn("Name.Language.Country", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_OPTIONAL)))
require.NoError(t, row.AddColumn("Name.URL", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_OPTIONAL)))
row.resetData()
data := []map[string]interface{}{
{
"DocId": int32(10),
"Links": map[string]interface{}{
"Forward": []int32{20, 40, 60},
},
"Name": []map[string]interface{}{
{
"Language": []map[string]interface{}{
{
"Code": int32(1),
"Country": int32(100),
},
{
"Code": int32(2),
},
},
"URL": int32(10),
},
{
"URL": int32(11),
},
{
"Language": []map[string]interface{}{
{
"Code": int32(3),
"Country": int32(101),
},
},
},
},
},
{
"DocId": int32(20),
"Links": map[string]interface{}{
"Backward": []int32{10, 30},
"Forward": []int32{80},
},
"Name": []map[string]interface{}{
{
"URL": int32(12),
},
},
},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("DocId")
require.NoError(t, err)
assert.Equal(t, uint16(0), d.MaxDefinitionLevel())
assert.Equal(t, uint16(0), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(20)}, d.data.values.assemble())
assert.Equal(t, []int32{0, 0}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 0}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Name.URL")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(11), int32(12)}, d.data.values.assemble())
assert.Equal(t, []int32{2, 2, 1, 2}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 1, 1, 0}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Links.Forward")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(20), int32(40), int32(60), int32(80)}, d.data.values.assemble())
assert.Equal(t, []int32{2, 2, 2, 2}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 1, 1, 0}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Links.Backward")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(10), int32(30)}, d.data.values.assemble())
assert.Equal(t, []int32{1, 2, 2}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 0, 1}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Name.Language.Country")
require.NoError(t, err)
assert.Equal(t, uint16(3), d.MaxDefinitionLevel())
assert.Equal(t, uint16(2), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(100), int32(101)}, d.data.values.assemble())
assert.Equal(t, []int32{3, 2, 1, 3, 1}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 2, 1, 1, 0}, d.data.rLevels.toArray())
d, err = row.findDataColumn("Name.Language.Code")
require.NoError(t, err)
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(2), d.MaxRepetitionLevel())
assert.Equal(t, []interface{}{int32(1), int32(2), int32(3)}, d.data.values.assemble())
assert.Equal(t, []int32{2, 2, 1, 2, 1}, d.data.dLevels.toArray())
assert.Equal(t, []int32{0, 2, 1, 1, 0}, d.data.rLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestTwitterBlog(t *testing.T) {
// Sample from here https://blog.twitter.com/engineering/en_us/a/2013/dremel-made-simple-with-parquet.html
row := &schema{}
require.NoError(t, row.AddGroup("level1", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddColumn("level1.level2", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REPEATED)))
row.resetData()
data := []map[string]interface{}{
{
"level1": []map[string]interface{}{
{"level2": []int32{1, 2, 3}},
{"level2": []int32{4, 5, 6, 7}},
},
},
{
"level1": []map[string]interface{}{
{"level2": []int32{8}},
{"level2": []int32{9, 10}},
},
},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
d, err := row.findDataColumn("level1.level2")
require.NoError(t, err)
var expected []interface{}
for i := 1; i < 11; i++ {
expected = append(expected, int32(i))
}
assert.Equal(t, expected, d.data.values.assemble())
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(2), d.MaxRepetitionLevel())
assert.Equal(t, []int32{0, 2, 2, 1, 2, 2, 2, 0, 1, 2}, d.data.rLevels.toArray())
assert.Equal(t, []int32{2, 2, 2, 2, 2, 2, 2, 2, 2, 2}, d.data.dLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestEmptyParent(t *testing.T) {
elementStore, err := NewInt32Store(parquet.Encoding_PLAIN, true, &ColumnParameters{})
require.NoError(t, err, "failed to create elementStore")
elementCol := NewDataColumn(elementStore, parquet.FieldRepetitionType_REQUIRED)
list, err := NewListColumn(elementCol, parquet.FieldRepetitionType_OPTIONAL)
require.NoError(t, err)
row := &schema{}
require.NoError(t, row.AddColumn("baz", list))
row.resetData()
data := []map[string]interface{}{
{
"baz": map[string]interface{}{},
},
}
for i := range data {
require.NoError(t, row.AddData(data[i]))
}
col, err := row.findDataColumn("baz.list.element")
require.NoError(t, err)
assert.Equal(t, []interface{}{}, col.data.values.assemble())
assert.Equal(t, uint16(2), col.MaxDefinitionLevel())
assert.Equal(t, uint16(1), col.MaxRepetitionLevel())
require.Equal(t, []int32{0}, col.data.rLevels.toArray())
require.Equal(t, []int32{1}, col.data.dLevels.toArray())
for i := range data {
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data[i], read)
}
}
func TestZeroRL(t *testing.T) {
row := &schema{}
//message test_msg {
// required group baz (LIST) {
// repeated group list {
// required group element {
// required int64 quux;
// }
// }
// }
// }
require.NoError(t, row.AddGroup("baz", parquet.FieldRepetitionType_REQUIRED))
require.NoError(t, row.AddGroup("baz.list", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddGroup("baz.list.element", parquet.FieldRepetitionType_REQUIRED))
require.NoError(t, row.AddColumn("baz.list.element.quux", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_REQUIRED)))
row.resetData()
data := map[string]interface{}{
"baz": map[string]interface{}{
"list": []map[string]interface{}{
{
"element": map[string]interface{}{
"quux": int32(23),
},
},
{
"element": map[string]interface{}{
"quux": int32(42),
},
},
},
},
}
require.NoError(t, row.AddData(data))
d, err := row.findDataColumn("baz.list.element.quux")
require.NoError(t, err)
var expected = []interface{}{int32(23), int32(42)}
assert.Equal(t, expected, d.data.values.assemble())
assert.Equal(t, uint16(1), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []int32{0, 1}, d.data.rLevels.toArray())
assert.Equal(t, []int32{1, 1}, d.data.dLevels.toArray())
read, err := row.getData()
require.NoError(t, err)
assert.Equal(t, data, read)
row = &schema{}
require.NoError(t, row.AddGroup("baz", parquet.FieldRepetitionType_REQUIRED))
require.NoError(t, row.AddGroup("baz.list", parquet.FieldRepetitionType_REPEATED))
require.NoError(t, row.AddGroup("baz.list.element", parquet.FieldRepetitionType_REQUIRED))
require.NoError(t, row.AddColumn("baz.list.element.quux", NewDataColumn(newIntStore(), parquet.FieldRepetitionType_OPTIONAL)))
row.resetData()
require.NoError(t, row.AddData(data))
d, err = row.findDataColumn("baz.list.element.quux")
require.NoError(t, err)
assert.Equal(t, expected, d.data.values.assemble())
assert.Equal(t, uint16(2), d.MaxDefinitionLevel())
assert.Equal(t, uint16(1), d.MaxRepetitionLevel())
assert.Equal(t, []int32{0, 1}, d.data.rLevels.toArray())
assert.Equal(t, []int32{2, 2}, d.data.dLevels.toArray())
read, err = row.getData()
require.NoError(t, err)
assert.Equal(t, data, read)
}