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converter_test.go
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converter_test.go
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// Copyright (c) 2017-2022 Snowflake Computing Inc. All rights reserved.
package gosnowflake
import (
"context"
"database/sql"
"database/sql/driver"
"fmt"
"io"
"math"
"math/big"
"math/cmplx"
"reflect"
"strconv"
"strings"
"testing"
"time"
"github.com/apache/arrow/go/v15/arrow"
"github.com/apache/arrow/go/v15/arrow/array"
"github.com/apache/arrow/go/v15/arrow/decimal128"
"github.com/apache/arrow/go/v15/arrow/memory"
)
func stringIntToDecimal(src string) (decimal128.Num, bool) {
b, ok := new(big.Int).SetString(src, 10)
if !ok {
return decimal128.Num{}, ok
}
var high, low big.Int
high.QuoRem(b, decimalShift, &low)
return decimal128.New(high.Int64(), low.Uint64()), ok
}
func stringFloatToDecimal(src string, scale int64) (decimal128.Num, bool) {
b, ok := new(big.Float).SetString(src)
if !ok {
return decimal128.Num{}, ok
}
s := new(big.Float).SetInt(new(big.Int).Exp(big.NewInt(10), big.NewInt(scale), nil))
n := new(big.Float).Mul(b, s)
if !n.IsInt() {
return decimal128.Num{}, false
}
var high, low, z big.Int
n.Int(&z)
high.QuoRem(&z, decimalShift, &low)
return decimal128.New(high.Int64(), low.Uint64()), ok
}
func stringFloatToInt(src string, scale int64) (int64, bool) {
b, ok := new(big.Float).SetString(src)
if !ok {
return 0, ok
}
s := new(big.Float).SetInt(new(big.Int).Exp(big.NewInt(10), big.NewInt(scale), nil))
n := new(big.Float).Mul(b, s)
var z big.Int
n.Int(&z)
if !z.IsInt64() {
return 0, false
}
return z.Int64(), true
}
type tcGoTypeToSnowflake struct {
in interface{}
tmode snowflakeType
out snowflakeType
}
func TestGoTypeToSnowflake(t *testing.T) {
testcases := []tcGoTypeToSnowflake{
{in: int64(123), tmode: nullType, out: fixedType},
{in: float64(234.56), tmode: nullType, out: realType},
{in: true, tmode: nullType, out: booleanType},
{in: "teststring", tmode: nullType, out: textType},
{in: Array([]int{1}), tmode: nullType, out: sliceType},
{in: Array(&[]int{1}), tmode: nullType, out: sliceType},
{in: Array([]int32{1}), tmode: nullType, out: sliceType},
{in: Array(&[]int32{1}), tmode: nullType, out: sliceType},
{in: Array([]int64{1}), tmode: nullType, out: sliceType},
{in: Array(&[]int64{1}), tmode: nullType, out: sliceType},
{in: Array([]float64{1.1}), tmode: nullType, out: sliceType},
{in: Array(&[]float64{1.1}), tmode: nullType, out: sliceType},
{in: Array([]float32{1.1}), tmode: nullType, out: sliceType},
{in: Array(&[]float32{1.1}), tmode: nullType, out: sliceType},
{in: Array([]bool{true}), tmode: nullType, out: sliceType},
{in: Array([]string{"test string"}), tmode: nullType, out: sliceType},
{in: Array([][]byte{}), tmode: nullType, out: sliceType},
{in: Array([]time.Time{time.Now()}, TimestampNTZType), tmode: timestampNtzType, out: sliceType},
{in: Array([]time.Time{time.Now()}, TimestampLTZType), tmode: timestampLtzType, out: sliceType},
{in: Array([]time.Time{time.Now()}, TimestampTZType), tmode: timestampTzType, out: sliceType},
{in: Array([]time.Time{time.Now()}, DateType), tmode: dateType, out: sliceType},
{in: Array([]time.Time{time.Now()}, TimeType), tmode: timeType, out: sliceType},
{in: DataTypeBinary, tmode: nullType, out: changeType},
{in: DataTypeTimestampLtz, tmode: nullType, out: changeType},
{in: DataTypeTimestampNtz, tmode: nullType, out: changeType},
{in: DataTypeTimestampTz, tmode: nullType, out: changeType},
{in: time.Now(), tmode: timestampNtzType, out: timestampNtzType},
{in: time.Now(), tmode: timestampTzType, out: timestampTzType},
{in: time.Now(), tmode: timestampLtzType, out: timestampLtzType},
{in: []byte{1, 2, 3}, tmode: binaryType, out: binaryType},
{in: Array([]interface{}{int64(123)}), tmode: nullType, out: sliceType},
{in: Array([]interface{}{float64(234.56)}), tmode: nullType, out: sliceType},
{in: Array([]interface{}{true}), tmode: nullType, out: sliceType},
{in: Array([]interface{}{"teststring"}), tmode: nullType, out: sliceType},
{in: Array([]interface{}{[]byte{1, 2, 3}}), tmode: nullType, out: sliceType},
{in: Array([]interface{}{time.Now()}), tmode: timestampNtzType, out: sliceType},
{in: Array([]interface{}{time.Now()}), tmode: timestampTzType, out: sliceType},
{in: Array([]interface{}{time.Now()}), tmode: timestampLtzType, out: sliceType},
{in: Array([]interface{}{time.Now()}), tmode: dateType, out: sliceType},
{in: Array([]interface{}{time.Now()}), tmode: timeType, out: sliceType},
{in: Array([]interface{}{time.Now()}, TimestampNTZType), tmode: timestampLtzType, out: sliceType},
{in: Array([]interface{}{time.Now()}, TimestampLTZType), tmode: dateType, out: sliceType},
{in: Array([]interface{}{time.Now()}, TimestampTZType), tmode: timeType, out: sliceType},
{in: Array([]interface{}{time.Now()}, DateType), tmode: timestampNtzType, out: sliceType},
{in: Array([]interface{}{time.Now()}, TimeType), tmode: timestampTzType, out: sliceType},
// negative
{in: 123, tmode: nullType, out: unSupportedType},
{in: int8(12), tmode: nullType, out: unSupportedType},
{in: int32(456), tmode: nullType, out: unSupportedType},
{in: uint(456), tmode: nullType, out: unSupportedType},
{in: uint8(12), tmode: nullType, out: unSupportedType},
{in: uint64(456), tmode: nullType, out: unSupportedType},
{in: []byte{100}, tmode: nullType, out: unSupportedType},
{in: []int{1}, tmode: nullType, out: unSupportedType},
{in: nil, tmode: nullType, out: unSupportedType},
}
for _, test := range testcases {
t.Run(fmt.Sprintf("%v_%v_%v", test.in, test.out, test.tmode), func(t *testing.T) {
a := goTypeToSnowflake(test.in, test.tmode)
if a != test.out {
t.Errorf("failed. in: %v, tmode: %v, expected: %v, got: %v", test.in, test.tmode, test.out, a)
}
})
}
}
func TestSnowflakeTypeToGo(t *testing.T) {
testcases := []struct {
in snowflakeType
scale int64
fields []fieldMetadata
out reflect.Type
ctx context.Context
}{
{in: fixedType, scale: 0, out: reflect.TypeOf(int64(0)), ctx: context.Background()},
{in: fixedType, scale: 2, out: reflect.TypeOf(float64(0)), ctx: context.Background()},
{in: realType, scale: 0, out: reflect.TypeOf(float64(0)), ctx: context.Background()},
{in: textType, scale: 0, out: reflect.TypeOf(""), ctx: context.Background()},
{in: dateType, scale: 0, out: reflect.TypeOf(time.Now()), ctx: context.Background()},
{in: timeType, scale: 0, out: reflect.TypeOf(time.Now()), ctx: context.Background()},
{in: timestampLtzType, scale: 0, out: reflect.TypeOf(time.Now()), ctx: context.Background()},
{in: timestampNtzType, scale: 0, out: reflect.TypeOf(time.Now()), ctx: context.Background()},
{in: timestampTzType, scale: 0, out: reflect.TypeOf(time.Now()), ctx: context.Background()},
{in: objectType, scale: 0, out: reflect.TypeOf(""), ctx: context.Background()},
{in: objectType, scale: 0, fields: []fieldMetadata{{}}, out: reflect.TypeOf(ObjectType{}), ctx: context.Background()},
{in: variantType, scale: 0, out: reflect.TypeOf(""), ctx: context.Background()},
{in: arrayType, scale: 0, out: reflect.TypeOf(""), ctx: context.Background()},
{in: binaryType, scale: 0, out: reflect.TypeOf([]byte{}), ctx: context.Background()},
{in: booleanType, scale: 0, out: reflect.TypeOf(true), ctx: context.Background()},
{in: sliceType, scale: 0, out: reflect.TypeOf(""), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "fixed", Scale: 0}}, out: reflect.TypeOf([]int64{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "fixed", Scale: 1}}, out: reflect.TypeOf([]float64{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "fixed", Scale: 0}}, out: reflect.TypeOf([]*big.Int{}), ctx: WithHigherPrecision(context.Background())},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "fixed", Scale: 1}}, out: reflect.TypeOf([]*big.Float{}), ctx: WithHigherPrecision(context.Background())},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "real", Scale: 1}}, out: reflect.TypeOf([]float64{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "text"}}, out: reflect.TypeOf([]string{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "date"}}, out: reflect.TypeOf([]time.Time{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "time"}}, out: reflect.TypeOf([]time.Time{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "timestamp_ntz"}}, out: reflect.TypeOf([]time.Time{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "timestamp_ltz"}}, out: reflect.TypeOf([]time.Time{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "timestamp_tz"}}, out: reflect.TypeOf([]time.Time{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "boolean"}}, out: reflect.TypeOf([]bool{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "binary"}}, out: reflect.TypeOf([][]byte{}), ctx: context.Background()},
{in: arrayType, scale: 0, fields: []fieldMetadata{{Type: "object"}}, out: reflect.TypeOf([]ObjectType{}), ctx: context.Background()},
}
for _, test := range testcases {
t.Run(fmt.Sprintf("%v_%v", test.in, test.out), func(t *testing.T) {
a := snowflakeTypeToGo(test.ctx, test.in, test.scale, test.fields)
if a != test.out {
t.Errorf("failed. in: %v, scale: %v, expected: %v, got: %v",
test.in, test.scale, test.out, a)
}
})
}
}
func TestValueToString(t *testing.T) {
v := cmplx.Sqrt(-5 + 12i) // should never happen as Go sql package must have already validated.
_, err := valueToString(v, nullType)
if err == nil {
t.Errorf("should raise error: %v", v)
}
// both localTime and utcTime should yield the same unix timestamp
localTime := time.Date(2019, 2, 6, 14, 17, 31, 123456789, time.FixedZone("-08:00", -8*3600))
utcTime := time.Date(2019, 2, 6, 22, 17, 31, 123456789, time.UTC)
expectedUnixTime := "1549491451123456789" // time.Unix(1549491451, 123456789).Format(time.RFC3339) == "2019-02-06T14:17:31-08:00"
expectedBool := "true"
expectedInt64 := "1"
expectedFloat64 := "1.1"
expectedString := "teststring"
if s, err := valueToString(localTime, timestampLtzType); err != nil {
t.Error("unexpected error")
} else if s == nil {
t.Errorf("expected '%v', got %v", expectedUnixTime, s)
} else if *s != expectedUnixTime {
t.Errorf("expected '%v', got '%v'", expectedUnixTime, *s)
}
if s, err := valueToString(utcTime, timestampLtzType); err != nil {
t.Error("unexpected error")
} else if s == nil {
t.Errorf("expected '%v', got %v", expectedUnixTime, s)
} else if *s != expectedUnixTime {
t.Errorf("expected '%v', got '%v'", expectedUnixTime, *s)
}
if s, err := valueToString(sql.NullBool{Bool: true, Valid: true}, timestampLtzType); err != nil {
t.Error("unexpected error")
} else if s == nil {
t.Errorf("expected '%v', got %v", expectedBool, s)
} else if *s != expectedBool {
t.Errorf("expected '%v', got '%v'", expectedBool, *s)
}
if s, err := valueToString(sql.NullInt64{Int64: 1, Valid: true}, timestampLtzType); err != nil {
t.Error("unexpected error")
} else if s == nil {
t.Errorf("expected '%v', got %v", expectedInt64, s)
} else if *s != expectedInt64 {
t.Errorf("expected '%v', got '%v'", expectedInt64, *s)
}
if s, err := valueToString(sql.NullFloat64{Float64: 1.1, Valid: true}, timestampLtzType); err != nil {
t.Error("unexpected error")
} else if s == nil {
t.Errorf("expected '%v', got %v", expectedFloat64, s)
} else if *s != expectedFloat64 {
t.Errorf("expected '%v', got '%v'", expectedFloat64, *s)
}
if s, err := valueToString(sql.NullString{String: "teststring", Valid: true}, timestampLtzType); err != nil {
t.Error("unexpected error")
} else if s == nil {
t.Errorf("expected '%v', got %v", expectedString, s)
} else if *s != expectedString {
t.Errorf("expected '%v', got '%v'", expectedString, *s)
}
}
func TestExtractTimestamp(t *testing.T) {
s := "1234abcdef" // pragma: allowlist secret
_, _, err := extractTimestamp(&s)
if err == nil {
t.Errorf("should raise error: %v", s)
}
s = "1234abc.def"
_, _, err = extractTimestamp(&s)
if err == nil {
t.Errorf("should raise error: %v", s)
}
s = "1234.def"
_, _, err = extractTimestamp(&s)
if err == nil {
t.Errorf("should raise error: %v", s)
}
}
func TestStringToValue(t *testing.T) {
var source string
var dest driver.Value
var err error
var rowType *execResponseRowType
source = "abcdefg"
types := []string{
"date", "time", "timestamp_ntz", "timestamp_ltz", "timestamp_tz", "binary",
}
for _, tt := range types {
t.Run(tt, func(t *testing.T) {
rowType = &execResponseRowType{
Type: tt,
}
if err = stringToValue(context.Background(), &dest, *rowType, &source, nil, nil); err == nil {
t.Errorf("should raise error. type: %v, value:%v", tt, source)
}
})
}
sources := []string{
"12345K78 2020",
"12345678 20T0",
}
types = []string{
"timestamp_tz",
}
for _, ss := range sources {
for _, tt := range types {
t.Run(ss+tt, func(t *testing.T) {
rowType = &execResponseRowType{
Type: tt,
}
if err = stringToValue(context.Background(), &dest, *rowType, &ss, nil, nil); err == nil {
t.Errorf("should raise error. type: %v, value:%v", tt, source)
}
})
}
}
src := "1549491451.123456789"
if err = stringToValue(context.Background(), &dest, execResponseRowType{Type: "timestamp_ltz"}, &src, nil, nil); err != nil {
t.Errorf("unexpected error: %v", err)
} else if ts, ok := dest.(time.Time); !ok {
t.Errorf("expected type: 'time.Time', got '%v'", reflect.TypeOf(dest))
} else if ts.UnixNano() != 1549491451123456789 {
t.Errorf("expected unix timestamp: 1549491451123456789, got %v", ts.UnixNano())
}
}
type tcArrayToString struct {
in driver.NamedValue
typ snowflakeType
out []string
}
func TestArrayToString(t *testing.T) {
testcases := []tcArrayToString{
{in: driver.NamedValue{Value: &intArray{1, 2}}, typ: fixedType, out: []string{"1", "2"}},
{in: driver.NamedValue{Value: &int32Array{1, 2}}, typ: fixedType, out: []string{"1", "2"}},
{in: driver.NamedValue{Value: &int64Array{3, 4, 5}}, typ: fixedType, out: []string{"3", "4", "5"}},
{in: driver.NamedValue{Value: &float64Array{6.7}}, typ: realType, out: []string{"6.7"}},
{in: driver.NamedValue{Value: &float32Array{1.5}}, typ: realType, out: []string{"1.5"}},
{in: driver.NamedValue{Value: &boolArray{true, false}}, typ: booleanType, out: []string{"true", "false"}},
{in: driver.NamedValue{Value: &stringArray{"foo", "bar", "baz"}}, typ: textType, out: []string{"foo", "bar", "baz"}},
}
for _, test := range testcases {
t.Run(strings.Join(test.out, "_"), func(t *testing.T) {
s, a := snowflakeArrayToString(&test.in, false)
if s != test.typ {
t.Errorf("failed. in: %v, expected: %v, got: %v", test.in, test.typ, s)
}
for i, v := range a {
if *v != test.out[i] {
t.Errorf("failed. in: %v, expected: %v, got: %v", test.in, test.out[i], a)
}
}
})
}
}
func TestArrowToValues(t *testing.T) {
dest := make([]snowflakeValue, 2)
pool := memory.NewCheckedAllocator(memory.NewGoAllocator())
defer pool.AssertSize(t, 0)
var valids []bool // AppendValues() with an empty valid array adds every value by default
localTime := time.Date(2019, 2, 6, 14, 17, 31, 123456789, time.FixedZone("-08:00", -8*3600))
field1 := arrow.Field{Name: "epoch", Type: &arrow.Int64Type{}}
field2 := arrow.Field{Name: "timezone", Type: &arrow.Int32Type{}}
tzStruct := arrow.StructOf(field1, field2)
type testObj struct {
field1 int
field2 string
}
for _, tc := range []struct {
logical string
physical string
rowType execResponseRowType
values interface{}
builder array.Builder
append func(b array.Builder, vs interface{})
compare func(src interface{}, dst []snowflakeValue) int
higherPrecision bool
}{
{
logical: "fixed",
physical: "number", // default: number(38, 0)
values: []int64{1, 2},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Int64Builder).AppendValues(vs.([]int64), valids) },
higherPrecision: true,
},
{
logical: "fixed",
physical: "number(38,5)",
rowType: execResponseRowType{Scale: 5},
values: []string{"1.05430", "2.08983"},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToInt(s, 5)
if !ok {
t.Fatalf("failed to convert to int")
}
b.(*array.Int64Builder).Append(num)
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToInt(srcvs[i], 5)
if !ok {
return i
}
srcDec := intToBigFloat(num, 5)
dstDec := dst[i].(*big.Float)
if srcDec.Cmp(dstDec) != 0 {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "number(38,5)",
rowType: execResponseRowType{Scale: 5},
values: []string{"1.05430", "2.08983"},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToInt(s, 5)
if !ok {
t.Fatalf("failed to convert to int")
}
b.(*array.Int64Builder).Append(num)
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToInt(srcvs[i], 5)
if !ok {
return i
}
srcDec := fmt.Sprintf("%.*f", 5, float64(num)/math.Pow10(int(5)))
dstDec := dst[i]
if srcDec != dstDec {
return i
}
}
return -1
},
higherPrecision: false,
},
{
logical: "fixed",
physical: "number(38,0)",
values: []string{"10000000000000000000000000000000000000", "-12345678901234567890123456789012345678"},
builder: array.NewDecimal128Builder(pool, &arrow.Decimal128Type{Precision: 30, Scale: 2}),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringIntToDecimal(s)
if !ok {
t.Fatalf("failed to convert to big.Int")
}
b.(*array.Decimal128Builder).Append(num)
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringIntToDecimal(srcvs[i])
if !ok {
return i
}
srcDec := decimalToBigInt(num)
dstDec := dst[i].(*big.Int)
if srcDec.Cmp(dstDec) != 0 {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "number(38,37)",
rowType: execResponseRowType{Scale: 37},
values: []string{"1.2345678901234567890123456789012345678", "-9.9999999999999999999999999999999999999"},
builder: array.NewDecimal128Builder(pool, &arrow.Decimal128Type{Precision: 38, Scale: 37}),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToDecimal(s, 37)
if !ok {
t.Fatalf("failed to convert to big.Rat")
}
b.(*array.Decimal128Builder).Append(num)
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToDecimal(srcvs[i], 37)
if !ok {
return i
}
srcDec := decimalToBigFloat(num, 37)
dstDec := dst[i].(*big.Float)
if srcDec.Cmp(dstDec) != 0 {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "int8",
values: []int8{1, 2},
builder: array.NewInt8Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Int8Builder).AppendValues(vs.([]int8), valids) },
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]int8)
for i := range srcvs {
if int64(srcvs[i]) != dst[i].(int64) {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "int16",
values: []int16{1, 2},
builder: array.NewInt16Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Int16Builder).AppendValues(vs.([]int16), valids) },
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]int16)
for i := range srcvs {
if int64(srcvs[i]) != dst[i].(int64) {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "int16",
values: []string{"1.2345", "2.3456"},
rowType: execResponseRowType{Scale: 4},
builder: array.NewInt16Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToInt(s, 4)
if !ok {
t.Fatalf("failed to convert to int")
}
b.(*array.Int16Builder).Append(int16(num))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToInt(srcvs[i], 4)
if !ok {
return i
}
srcDec := intToBigFloat(num, 4)
dstDec := dst[i].(*big.Float)
if srcDec.Cmp(dstDec) != 0 {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "int16",
values: []string{"1.2345", "2.3456"},
rowType: execResponseRowType{Scale: 4},
builder: array.NewInt16Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToInt(s, 4)
if !ok {
t.Fatalf("failed to convert to int")
}
b.(*array.Int16Builder).Append(int16(num))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToInt(srcvs[i], 4)
if !ok {
return i
}
srcDec := fmt.Sprintf("%.*f", 4, float64(num)/math.Pow10(int(4)))
dstDec := dst[i]
if srcDec != dstDec {
return i
}
}
return -1
},
higherPrecision: false,
},
{
logical: "fixed",
physical: "int32",
values: []int32{1, 2},
builder: array.NewInt32Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Int32Builder).AppendValues(vs.([]int32), valids) },
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]int32)
for i := range srcvs {
if int64(srcvs[i]) != dst[i] {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "int32",
values: []string{"1.23456", "2.34567"},
rowType: execResponseRowType{Scale: 5},
builder: array.NewInt32Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToInt(s, 5)
if !ok {
t.Fatalf("failed to convert to int")
}
b.(*array.Int32Builder).Append(int32(num))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToInt(srcvs[i], 5)
if !ok {
return i
}
srcDec := intToBigFloat(num, 5)
dstDec := dst[i].(*big.Float)
if srcDec.Cmp(dstDec) != 0 {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "fixed",
physical: "int32",
values: []string{"1.23456", "2.34567"},
rowType: execResponseRowType{Scale: 5},
builder: array.NewInt32Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringFloatToInt(s, 5)
if !ok {
t.Fatalf("failed to convert to int")
}
b.(*array.Int32Builder).Append(int32(num))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]string)
for i := range srcvs {
num, ok := stringFloatToInt(srcvs[i], 5)
if !ok {
return i
}
srcDec := fmt.Sprintf("%.*f", 5, float64(num)/math.Pow10(int(5)))
dstDec := dst[i]
if srcDec != dstDec {
return i
}
}
return -1
},
higherPrecision: false,
},
{
logical: "fixed",
physical: "int64",
values: []int64{1, 2},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Int64Builder).AppendValues(vs.([]int64), valids) },
higherPrecision: true,
},
{
logical: "boolean",
values: []bool{true, false},
builder: array.NewBooleanBuilder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.BooleanBuilder).AppendValues(vs.([]bool), valids) },
},
{
logical: "real",
physical: "float",
values: []float64{1, 2},
builder: array.NewFloat64Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Float64Builder).AppendValues(vs.([]float64), valids) },
},
{
logical: "text",
physical: "string",
values: []string{"foo", "bar"},
builder: array.NewStringBuilder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.StringBuilder).AppendValues(vs.([]string), valids) },
},
{
logical: "binary",
values: [][]byte{[]byte("foo"), []byte("bar")},
builder: array.NewBinaryBuilder(pool, arrow.BinaryTypes.Binary),
append: func(b array.Builder, vs interface{}) { b.(*array.BinaryBuilder).AppendValues(vs.([][]byte), valids) },
},
{
logical: "date",
values: []time.Time{time.Now(), localTime},
builder: array.NewDate32Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, d := range vs.([]time.Time) {
b.(*array.Date32Builder).Append(arrow.Date32(d.Unix()))
}
},
},
{
logical: "time",
values: []time.Time{time.Now(), time.Now()},
rowType: execResponseRowType{Scale: 9},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, t := range vs.([]time.Time) {
b.(*array.Int64Builder).Append(t.UnixNano())
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]time.Time)
for i := range srcvs {
if srcvs[i].Nanosecond() != dst[i].(time.Time).Nanosecond() {
return i
}
}
return -1
},
higherPrecision: true,
},
{
logical: "timestamp_ntz",
values: []time.Time{time.Now(), localTime},
rowType: execResponseRowType{Scale: 9},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, t := range vs.([]time.Time) {
b.(*array.Int64Builder).Append(t.UnixNano())
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]time.Time)
for i := range srcvs {
if srcvs[i].UnixNano() != dst[i].(time.Time).UnixNano() {
return i
}
}
return -1
},
},
{
logical: "timestamp_ltz",
values: []time.Time{time.Now(), localTime},
rowType: execResponseRowType{Scale: 9},
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) {
for _, t := range vs.([]time.Time) {
b.(*array.Int64Builder).Append(t.UnixNano())
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]time.Time)
for i := range srcvs {
if srcvs[i].UnixNano() != dst[i].(time.Time).UnixNano() {
return i
}
}
return -1
},
},
{
logical: "timestamp_tz",
values: []time.Time{time.Now(), localTime},
builder: array.NewStructBuilder(pool, tzStruct),
append: func(b array.Builder, vs interface{}) {
sb := b.(*array.StructBuilder)
valids = []bool{true, true}
sb.AppendValues(valids)
for _, t := range vs.([]time.Time) {
sb.FieldBuilder(0).(*array.Int64Builder).Append(t.Unix())
sb.FieldBuilder(1).(*array.Int32Builder).Append(int32(t.UnixNano()))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]time.Time)
for i := range srcvs {
if srcvs[i].Unix() != dst[i].(time.Time).Unix() {
return i
}
}
return -1
},
},
{
logical: "array",
values: [][]string{{"foo", "bar"}, {"baz", "quz", "quux"}},
builder: array.NewStringBuilder(pool),
append: func(b array.Builder, vs interface{}) {
for _, a := range vs.([][]string) {
b.(*array.StringBuilder).Append(fmt.Sprint(a))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([][]string)
for i, o := range srcvs {
if fmt.Sprint(o) != dst[i].(string) {
return i
}
}
return -1
},
},
{
logical: "object",
values: []testObj{{0, "foo"}, {1, "bar"}},
builder: array.NewStringBuilder(pool),
append: func(b array.Builder, vs interface{}) {
for _, o := range vs.([]testObj) {
b.(*array.StringBuilder).Append(fmt.Sprint(o))
}
},
compare: func(src interface{}, dst []snowflakeValue) int {
srcvs := src.([]testObj)
for i, o := range srcvs {
if fmt.Sprint(o) != dst[i].(string) {
return i
}
}
return -1
},
},
} {
testName := tc.logical
if tc.physical != "" {
testName += " " + tc.physical
}
t.Run(testName, func(t *testing.T) {
b := tc.builder
tc.append(b, tc.values)
arr := b.NewArray()
defer arr.Release()
meta := tc.rowType
meta.Type = tc.logical
withHigherPrecision := tc.higherPrecision
if err := arrowToValues(context.Background(), dest, meta, arr, localTime.Location(), withHigherPrecision, nil); err != nil { // TODO
t.Fatalf("error: %s", err)
}
elemType := reflect.TypeOf(tc.values).Elem()
if tc.compare != nil {
idx := tc.compare(tc.values, dest)
if idx != -1 {
t.Fatalf("error: column array value mistmatch at index %v", idx)
}
} else {
for _, d := range dest {
if reflect.TypeOf(d) != elemType {
t.Fatalf("error: expected type %s, got type %s", reflect.TypeOf(d), elemType)
}
}
}
})
}
}
func TestArrowToRecord(t *testing.T) {
pool := memory.NewCheckedAllocator(memory.NewGoAllocator())
defer pool.AssertSize(t, 0) // ensure no arrow memory leaks
var valids []bool // AppendValues() with an empty valid array adds every value by default
localTime := time.Date(2019, 1, 1, 1, 17, 31, 123456789, time.FixedZone("-08:00", -8*3600))
localTimeFarIntoFuture := time.Date(9000, 2, 6, 14, 17, 31, 123456789, time.FixedZone("-08:00", -8*3600))
epochField := arrow.Field{Name: "epoch", Type: &arrow.Int64Type{}}
timezoneField := arrow.Field{Name: "timezone", Type: &arrow.Int32Type{}}
fractionField := arrow.Field{Name: "fraction", Type: &arrow.Int32Type{}}
timestampTzStructWithoutFraction := arrow.StructOf(epochField, timezoneField)
timestampTzStructWithFraction := arrow.StructOf(epochField, fractionField, timezoneField)
timestampNtzStruct := arrow.StructOf(epochField, fractionField)
timestampLtzStruct := arrow.StructOf(epochField, fractionField)
type testObj struct {
field1 int
field2 string
}
for _, tc := range []struct {
logical string
physical string
sc *arrow.Schema
rowType execResponseRowType
values interface{}
expected interface{}
error string
arrowBatchesTimestampOption snowflakeArrowBatchesTimestampOption
enableArrowBatchesUtf8Validation bool
withHigherPrecision bool
nrows int
builder array.Builder
append func(b array.Builder, vs interface{})
compare func(src interface{}, expected interface{}, rec arrow.Record) int
}{
{
logical: "fixed",
physical: "number", // default: number(38, 0)
sc: arrow.NewSchema([]arrow.Field{{Type: &arrow.Int64Type{}}}, nil),
values: []int64{1, 2},
nrows: 2,
builder: array.NewInt64Builder(pool),
append: func(b array.Builder, vs interface{}) { b.(*array.Int64Builder).AppendValues(vs.([]int64), valids) },
},
{
logical: "fixed",
physical: "int64",
sc: arrow.NewSchema([]arrow.Field{{Type: &arrow.Decimal128Type{Precision: 38, Scale: 0}}}, nil),
values: []string{"10000000000000000000000000000000000000", "-12345678901234567890123456789012345678"},
nrows: 2,
builder: array.NewDecimal128Builder(pool, &arrow.Decimal128Type{Precision: 38, Scale: 0}),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringIntToDecimal(s)
if !ok {
t.Fatalf("failed to convert to Int64")
}
b.(*array.Decimal128Builder).Append(num)
}
},
compare: func(src interface{}, expected interface{}, convertedRec arrow.Record) int {
srcvs := src.([]string)
for i, dec := range convertedRec.Column(0).(*array.Int64).Int64Values() {
num, ok := stringIntToDecimal(srcvs[i])
if !ok {
return i
}
srcDec := decimalToBigInt(num).Int64()
if srcDec != dec {
return i
}
}
return -1
},
},
{
logical: "fixed",
physical: "number(38,0)",
sc: arrow.NewSchema([]arrow.Field{{Type: &arrow.Decimal128Type{Precision: 38, Scale: 0}}}, nil),
values: []string{"10000000000000000000000000000000000000", "-12345678901234567890123456789012345678"},
withHigherPrecision: true,
nrows: 2,
builder: array.NewDecimal128Builder(pool, &arrow.Decimal128Type{Precision: 38, Scale: 0}),
append: func(b array.Builder, vs interface{}) {
for _, s := range vs.([]string) {
num, ok := stringIntToDecimal(s)
if !ok {
t.Fatalf("failed to convert to Int64")
}
b.(*array.Decimal128Builder).Append(num)
}
},
compare: func(src interface{}, expected interface{}, convertedRec arrow.Record) int {
srcvs := src.([]string)