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clickhouse_test.go
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package clickhouse_test
import (
"context"
"database/sql"
"database/sql/driver"
"fmt"
"net"
"strings"
"testing"
"time"
"github.com/kshvakov/clickhouse"
"github.com/stretchr/testify/assert"
)
func Test_OpenConnectAndPing(t *testing.T) {
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) {
assert.NoError(t, connect.Ping())
}
}
func Test_CreateTable(t *testing.T) {
const ddl = `
CREATE TABLE clickhouse_test_create_table (
click_id FixedString(64),
click_time DateTime
) Engine=Memory
`
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_create_table"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.Error(t, err) {
if exception, ok := err.(*clickhouse.Exception); assert.True(t, ok) {
assert.Equal(t, int32(57), exception.Code)
}
}
}
}
}
}
func Test_Insert(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_insert (
int8 Int8,
int16 Int16,
int32 Int32,
int64 Int64,
uint8 UInt8,
uint16 UInt16,
uint32 UInt32,
uint64 UInt64,
float32 Float32,
float64 Float64,
string String,
fString FixedString(2),
date Date,
datetime DateTime
) Engine=Memory
`
dml = `
INSERT INTO clickhouse_test_insert (
int8,
int16,
int32,
int64,
uint8,
uint16,
uint32,
uint64,
float32,
float64,
string,
fString,
date,
datetime
) VALUES (
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?
)
`
query = `
SELECT
int8,
int16,
int32,
int64,
uint8,
uint16,
uint32,
uint64,
float32,
float64,
string,
fString,
date,
datetime
FROM clickhouse_test_insert
`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_insert"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
for i := 1; i <= 10; i++ {
_, err = stmt.Exec(
-1*i, -2*i, -4*i, -8*i, // int
uint8(1*i), uint16(2*i), uint32(4*i), uint64(8*i), // uint
1.32*float32(i), 1.64*float64(i), //float
fmt.Sprintf("string %d", i), // string
"RU", //fixedstring,
time.Now(), //date
time.Now(), //datetime
)
if !assert.NoError(t, err) {
return
}
}
} else {
return
}
if assert.NoError(t, tx.Commit()) {
var item struct {
Int8 int8
Int16 int16
Int32 int32
Int64 int64
UInt8 uint8
UInt16 uint16
UInt32 uint32
UInt64 uint64
Float32 float32
Float64 float64
String string
FixedString string
Date time.Time
DateTime time.Time
}
if rows, err := connect.Query(query); assert.NoError(t, err) {
var count int
for rows.Next() {
count++
err := rows.Scan(
&item.Int8,
&item.Int16,
&item.Int32,
&item.Int64,
&item.UInt8,
&item.UInt16,
&item.UInt32,
&item.UInt64,
&item.Float32,
&item.Float64,
&item.String,
&item.FixedString,
&item.Date,
&item.DateTime,
)
if !assert.NoError(t, err) {
return
}
}
assert.Equal(t, int(10), count)
}
}
}
}
}
}
}
func Test_InsertBatch(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_insert_batch (
int8 Int8,
int16 Int16,
int32 Int32,
int64 Int64,
uint8 UInt8,
uint16 UInt16,
uint32 UInt32,
uint64 UInt64,
float32 Float32,
float64 Float64,
string String,
fString FixedString(2),
date Date,
datetime DateTime,
arrayString Array(String)
) Engine=Memory
`
dml = `
INSERT INTO clickhouse_test_insert_batch (
int8,
int16,
int32,
int64,
uint8,
uint16,
uint32,
uint64,
float32,
float64,
string,
fString,
date,
datetime,
arrayString
) VALUES (
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?
)
`
query = `SELECT COUNT(*) FROM clickhouse_test_insert_batch`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true&block_size=11"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_insert_batch"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
for i := 1; i <= 1000; i++ {
_, err = stmt.Exec(
-1*i, -2*i, -4*i, -8*i, // int
uint8(1*i), uint16(2*i), uint32(4*i), uint64(8*i), // uint
1.32*float32(i), 1.64*float64(i), //float
fmt.Sprintf("string %d ", i), // string
"RU", //fixedstring,
time.Now(), //date
time.Now(), //datetime
[]string{"A", "B", "C"},
)
if !assert.NoError(t, err) {
return
}
}
}
if assert.NoError(t, tx.Commit()) {
if rows, err := connect.Query(query); assert.NoError(t, err) {
var count int
for rows.Next() {
err := rows.Scan(&count)
if !assert.NoError(t, err) {
return
}
}
assert.Equal(t, int(1000), count)
}
}
}
}
}
}
}
func Test_Select(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_select (
id Int32,
code FixedString(2),
date Date,
datetime DateTime
) Engine=Memory
`
dml = `
INSERT INTO clickhouse_test_select VALUES (?, ?, ?, ?)
`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_select"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
if _, err := stmt.Exec(1, "RU", clickhouse.Date(time.Date(2017, 1, 20, 0, 0, 0, 0, time.Local)), time.Date(2017, 1, 20, 13, 0, 0, 0, time.Local)); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec(2, "UA", time.Date(2017, 1, 20, 0, 0, 0, 0, time.UTC), time.Date(2017, 1, 20, 14, 0, 0, 0, time.Local)); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec(3, "DE", time.Date(2017, 1, 19, 0, 0, 0, 0, time.UTC), time.Date(2017, 1, 20, 14, 0, 0, 0, time.Local)); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec(4, "US", time.Date(2017, 1, 19, 0, 0, 0, 0, time.UTC), time.Date(2017, 1, 20, 13, 0, 0, 0, time.Local)); !assert.NoError(t, err) {
return
}
if assert.NoError(t, tx.Commit()) {
if row := connect.QueryRow("SELECT COUNT(*) FROM clickhouse_test_select"); assert.NotNil(t, row) {
var count int
if err := row.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(4), count)
}
}
if row := connect.QueryRow("SELECT COUNT(*) FROM clickhouse_test_select WHERE date = ?", time.Date(2017, 1, 20, 0, 0, 0, 0, time.UTC)); assert.NotNil(t, row) {
var count int
if err := row.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(2), count)
}
}
if row := connect.QueryRow("SELECT COUNT(*) FROM clickhouse_test_select WHERE datetime = ?", time.Date(2017, 1, 20, 14, 0, 0, 0, time.Local)); assert.NotNil(t, row) {
var count int
if err := row.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(2), count)
}
}
if row := connect.QueryRow("SELECT COUNT(*) FROM clickhouse_test_select WHERE id IN (?, ?, ?)", 1, 3, 4); assert.NotNil(t, row) {
var count int
if err := row.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(3), count)
}
}
if row := connect.QueryRow("SELECT COUNT(*) FROM clickhouse_test_select WHERE code IN (?, ?, ?)", "US", "DE", "RU"); assert.NotNil(t, row) {
var count int
if err := row.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(3), count)
}
}
}
{
row1 := connect.QueryRow("SELECT COUNT(*) /* ROW1 */ FROM clickhouse_test_select WHERE date = ?", time.Date(2017, 1, 20, 0, 0, 0, 0, time.UTC))
row2 := connect.QueryRow("SELECT COUNT(*) /* ROW2 */ FROM clickhouse_test_select WHERE datetime = ?", time.Date(2017, 1, 20, 14, 0, 0, 0, time.Local))
if assert.NotNil(t, row2) {
var count int
if err := row2.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(2), count)
}
}
if assert.NotNil(t, row1) {
var count int
if err := row1.Scan(&count); assert.NoError(t, err) {
assert.Equal(t, int(2), count)
}
}
}
}
}
}
}
}
}
func Test_SimpleSelect(t *testing.T) {
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if rows, err := connect.Query("SELECT a FROM (SELECT 1 AS a UNION ALL SELECT 2 AS a UNION ALL SELECT 3 AS a) ORDER BY a ASC"); assert.NoError(t, err) {
defer rows.Close()
var cnt int
for rows.Next() {
cnt++
var value int
if assert.NoError(t, rows.Scan(&value)) {
assert.Equal(t, cnt, value)
}
}
assert.Equal(t, int(3), cnt)
}
if row := connect.QueryRow("SELECT min(a) FROM (SELECT 1 AS a UNION ALL SELECT 2 AS a UNION ALL SELECT 3 AS a)"); assert.NotNil(t, row) {
var min int64
if assert.NoError(t, row.Scan(&min)) {
assert.Equal(t, int64(1), min)
}
}
if row := connect.QueryRow("SELECT max(a) FROM (SELECT 1 AS a UNION ALL SELECT 2 AS a UNION ALL SELECT 3 AS a)"); assert.NotNil(t, row) {
var max int64
if assert.NoError(t, row.Scan(&max)) {
assert.Equal(t, int64(3), max)
}
}
if row := connect.QueryRow("SELECT sum(a) FROM (SELECT 1 AS a UNION ALL SELECT 2 AS a UNION ALL SELECT 3 AS a)"); assert.NotNil(t, row) {
var sum int64
if assert.NoError(t, row.Scan(&sum)) {
assert.Equal(t, int64(6), sum)
}
}
if row := connect.QueryRow("SELECT median(a) FROM (SELECT 1 AS a UNION ALL SELECT 2 AS a UNION ALL SELECT 3 AS a)"); assert.NotNil(t, row) {
var median float64
if assert.NoError(t, row.Scan(&median)) {
assert.Equal(t, float64(2), median)
}
}
}
}
func Test_ArrayT(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_array (
int8 Array(Int8),
int16 Array(Int16),
int32 Array(Int32),
int64 Array(Int64),
uint8 Array(UInt8),
uint16 Array(UInt16),
uint32 Array(UInt32),
uint64 Array(UInt64),
float32 Array(Float32),
float64 Array(Float64),
string Array(String),
fString Array(FixedString(2)),
date Array(Date),
datetime Array(DateTime),
enum8 Array(Enum8 ('a' = 1, 'b' = 2)),
enum16 Array(Enum16('c' = 1, 'd' = 2))
) Engine=Memory
`
dml = `
INSERT INTO clickhouse_test_array (
int8,
int16,
int32,
int64,
uint8,
uint16,
uint32,
uint64,
float32,
float64,
string,
fString,
date,
datetime,
enum8,
enum16
) VALUES (
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?,
?
)
`
query = `
SELECT
int8,
int16,
int32,
int64,
uint8,
uint16,
uint32,
uint64,
float32,
float64,
string,
fString,
date,
datetime
FROM clickhouse_test_array
`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_array"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
for i := 1; i <= 10; i++ {
_, err = stmt.Exec(
[]int8{1, 2, 3},
[]int16{5, 6, 7},
[]int32{8, 9, 10},
[]int64{11, 12, 13},
clickhouse.Array([]uint8{14, 15, 16}),
[]uint16{17, 18, 19},
[]uint32{20, 21, 22},
[]uint64{23, 24, 25},
[]float32{32.1, 32.2},
[]float64{64.1, 64.2},
[]string{fmt.Sprintf("A_%d", i), "B", "C"},
clickhouse.ArrayFixedString(2, []string{"RU", "EN", "DE"}),
clickhouse.ArrayDate([]time.Time{time.Now(), time.Now()}),
clickhouse.ArrayDateTime([]time.Time{time.Now(), time.Now()}),
[]string{"a", "b"},
[]string{"c", "d"},
)
if !assert.NoError(t, err) {
return
}
_, err = stmt.Exec(
[]int8{100, 101, 102, 103, 104, 105},
[]int16{200, 201},
[]int32{300, 301, 302, 303},
[]int64{400, 401, 402},
clickhouse.Array([]uint8{250, 251, 252, 253, 254}),
[]uint16{1000, 1001, 1002, 1003, 1004},
[]uint32{2001, 2002},
[]uint64{3000},
[]float32{1000.1, 100.1, 2000},
[]float64{640, 8, 650.9, 703.5, 800},
[]string{fmt.Sprintf("D_%d", i), "E", "F", "G"},
clickhouse.ArrayFixedString(2, []string{"UA", "GB"}),
clickhouse.ArrayDate([]time.Time{time.Now(), time.Now(), time.Now(), time.Now()}),
clickhouse.ArrayDateTime([]time.Time{time.Now(), time.Now()}),
[]string{"a", "b"},
[]string{"c", "d"},
)
if !assert.NoError(t, err) {
return
}
}
}
if assert.NoError(t, tx.Commit()) {
var item struct {
Int8 []int8
Int16 []int16
Int32 []int32
Int64 []int64
UInt8 []uint8
UInt16 []uint16
UInt32 []uint32
UInt64 []uint64
Float32 []float32
Float64 []float64
String []string
FixedString []string
Date []time.Time
DateTime []time.Time
}
if rows, err := connect.Query(query); assert.NoError(t, err) {
var count int
for rows.Next() {
count++
err := rows.Scan(
&item.Int8,
&item.Int16,
&item.Int32,
&item.Int64,
&item.UInt8,
&item.UInt16,
&item.UInt32,
&item.UInt64,
&item.Float32,
&item.Float64,
&item.String,
&item.FixedString,
&item.Date,
&item.DateTime,
)
if !assert.NoError(t, err) {
return
}
t.Logf("Int8=%v, Int16=%v, Int32=%v, Int64=%v",
item.Int8,
item.Int16,
item.Int32,
item.Int64,
)
t.Logf("UInt8=%v, UInt16=%v, UInt32=%v, UInt64=%v",
item.UInt8,
item.UInt16,
item.UInt32,
item.UInt64,
)
t.Logf("Float32=%v, Float64=%v",
item.Float32,
item.Float64,
)
t.Logf("String=%v, FixedString=%v",
item.String,
item.FixedString,
)
t.Logf("Date=%v, DateTime=%v",
item.Date,
item.DateTime,
)
}
assert.Equal(t, int(20), count)
}
}
}
}
}
}
}
func Test_Insert_FixedString(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_fixed_string (
str2 FixedString(2),
str5 FixedString(5),
str10 FixedString(10)
) Engine=Memory
`
dml = `INSERT INTO clickhouse_test_fixed_string VALUES (?, ?, ?)`
query = `SELECT str2, str5, str10 FROM clickhouse_test_fixed_string`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_fixed_string"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
if _, err := stmt.Exec(strings.Repeat("a", 2), strings.Repeat("b", 5), strings.Repeat("c", 10)); assert.NoError(t, err) {
if _, err := stmt.Exec("A", "B", "C"); assert.NoError(t, err) {
assert.NoError(t, tx.Commit())
}
}
}
}
}
}
}
}
func Test_With_Totals(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_with_totals (
country FixedString(2)
) Engine=Memory
`
dml = `INSERT INTO clickhouse_test_with_totals (country) VALUES (?)`
query = `
SELECT
country,
COUNT(*)
FROM clickhouse_test_with_totals
GROUP BY country
WITH TOTALS
`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_with_totals"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
if _, err := stmt.Exec("RU"); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec("EN"); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec("RU"); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec("RU"); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec("EN"); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec("RU"); !assert.NoError(t, err) {
return
}
}
if assert.NoError(t, tx.Commit()) {
var item struct {
Country string
Count int64
}
if rows, err := connect.Query(query); assert.NoError(t, err) {
var count int
for rows.Next() {
count++
err := rows.Scan(
&item.Country,
&item.Count,
)
if !assert.NoError(t, err) {
return
}
switch item.Country {
case "RU":
if !assert.Equal(t, int64(4), item.Count) {
return
}
case "EN":
if !assert.Equal(t, int64(2), item.Count) {
return
}
}
}
if assert.Equal(t, int(2), count) && assert.True(t, rows.NextResultSet()) {
var count int
for rows.Next() {
count++
err := rows.Scan(
&item.Country,
&item.Count,
)
if !assert.NoError(t, err) {
return
}
if assert.Equal(t, "\x00\x00", item.Country) {
assert.Equal(t, int64(6), item.Count)
}
}
assert.Equal(t, int(1), count)
}
}
}
}
}
}
}
}
func Test_Tx(t *testing.T) {
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
_, err = tx.Query("SELECT 1")
if assert.NoError(t, err) {
if !assert.NoError(t, tx.Rollback()) {
return
}
}
if _, err := tx.Query("SELECT 2"); assert.Error(t, err) {
assert.Equal(t, sql.ErrTxDone, err)
}
}
}
}
func Test_Temporary_Table(t *testing.T) {
const (
ddl = `
CREATE TEMPORARY TABLE clickhouse_test_temporary_table (
ID UInt64
);
`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if _, err := tx.Exec(ddl); assert.NoError(t, err) {
if _, err := tx.Exec("INSERT INTO clickhouse_test_temporary_table (ID) SELECT number AS ID FROM system.numbers LIMIT 10"); assert.NoError(t, err) {
if rows, err := tx.Query("SELECT ID AS ID FROM clickhouse_test_temporary_table"); assert.NoError(t, err) {
var count int
for rows.Next() {
var num int
if err := rows.Scan(&num); !assert.NoError(t, err) {
return
}
count++
}
if _, err = tx.Query("SELECT ID AS ID1 FROM clickhouse_test_temporary_table"); assert.NoError(t, err) {
if _, err = connect.Query("SELECT ID AS ID2 FROM clickhouse_test_temporary_table"); assert.Error(t, err) {
if exception, ok := err.(*clickhouse.Exception); assert.True(t, ok) {
assert.Equal(t, int32(60), exception.Code)
}
}
}
if assert.Equal(t, int(10), count) {
if assert.NoError(t, tx.Commit()) {
assert.NoError(t, connect.Close())
}
}
}
}
}
}
}
}
func Test_Enum(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_enum (
enum8 Enum8 ('a' = 1, 'b' = 2),
enum16 Enum16('c' = 1, 'd' = 2),
arr_enum8 Array(Enum8 ('a' = 1, 'b' = 2)),
arr_enum16 Array(Enum16('c' = 1, 'd' = 2))
) Engine=Memory
`
dml = `INSERT INTO clickhouse_test_enum VALUES (?, ?, ?, ?)`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_enum"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
if _, err := stmt.Exec("a", "c", []string{"a", "b"}, []string{"c", "d"}); !assert.NoError(t, err) {
return
}
if _, err := stmt.Exec("b", "d", []string{"b", "a"}, []string{"d", "c"}); !assert.NoError(t, err) {
return
}
}
if err := tx.Commit(); !assert.NoError(t, err) {
return
}
}
}
}
if rows, err := connect.Query("SELECT enum8, enum16, arr_enum8, arr_enum16 FROM clickhouse_test_enum"); assert.NoError(t, err) {
for rows.Next() {
var (
a, b string
c, d []string
)
if err := rows.Scan(&a, &b, &c, &d); assert.NoError(t, err) {
t.Log(a, b, c, d)
}
}
}
}
}
func Test_Ternary_Operator(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_ternary_operator (
a UInt8,
b UInt8
) Engine=Memory
`
dml = `INSERT INTO clickhouse_ternary_operator VALUES (?, ?)`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) && assert.NoError(t, connect.Ping()) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_ternary_operator"); assert.NoError(t, err) {
if _, err := connect.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare(dml); assert.NoError(t, err) {
if _, err := stmt.Exec(1, 0); !assert.NoError(t, err) {
return
}
}
if err := tx.Commit(); !assert.NoError(t, err) {
return
}
}
}
}
if rows, err := connect.Query("SELECT a ? '+' : '-', b ? '+' : '-' FROM clickhouse_ternary_operator WHERE a = ? AND b < ?", 1, 2); assert.NoError(t, err) {
for rows.Next() {
var (
a, b string
)
if err := rows.Scan(&a, &b); assert.NoError(t, err) {
assert.Equal(t, "+", a)
assert.Equal(t, "-", b)
}
}
}
if rows, err := connect.Query("SELECT a, b FROM clickhouse_ternary_operator WHERE a = ? AND b < ?", 1, 2); assert.NoError(t, err) {
for rows.Next() {
var (
a, b int
)
if err := rows.Scan(&a, &b); assert.NoError(t, err) {
assert.Equal(t, 1, a)
assert.Equal(t, 0, b)
}
}
}
if rows, err := connect.Query(`
SELECT
a ?
'+' : '-',
b ? '+' : '-' ,
a, b
FROM clickhouse_ternary_operator
WHERE a = ? AND b < ? AND a IN(?,
?
) OR b = 0 OR b > ?`, 1, 2, 1, 100, -1); assert.NoError(t, err) {
for rows.Next() {
var (
a, b string
c, d int
)
if err := rows.Scan(&a, &b, &c, &d); assert.NoError(t, err) {
assert.Equal(t, "+", a)
assert.Equal(t, "-", b)
}
}
}
}
}
func Test_UUID(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_uuid (
UUID FixedString(16),
Builtin UUID
) Engine=Memory;
`
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_uuid"); assert.NoError(t, err) {
if _, err := tx.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare("INSERT INTO clickhouse_test_uuid VALUES(?)"); assert.NoError(t, err) {
if _, err := stmt.Exec(clickhouse.UUID("123e4567-e89b-12d3-a456-426655440000"), "123e4567-e89b-12d3-a456-426655440000"); !assert.NoError(t, err) {
t.Fatal(err)
}
}
if err := tx.Commit(); !assert.NoError(t, err) {
t.Fatal(err)
}
}
if rows, err := connect.Query("SELECT UUID, UUIDNumToString(UUID), Builtin FROM clickhouse_test_uuid"); assert.NoError(t, err) {
if assert.True(t, rows.Next()) {
var (
uuid clickhouse.UUID
uuidStr string
builtinUUID string
)
if err := rows.Scan(&uuid, &uuidStr, &builtinUUID); assert.NoError(t, err) {
if assert.Equal(t, "123e4567-e89b-12d3-a456-426655440000", uuidStr) {
assert.Equal(t, clickhouse.UUID("123e4567-e89b-12d3-a456-426655440000"), uuid)
assert.Equal(t, "123e4567-e89b-12d3-a456-426655440000", builtinUUID)
}
}
}
}
}
}
}
}
}
func Test_IP(t *testing.T) {
const (
ddl = `
CREATE TABLE clickhouse_test_ip (
IPv4 FixedString(16),
IPv6 FixedString(16)
) Engine=Memory;
`
)
var (
ipv4 = net.ParseIP("127.0.0.1")
ipv6 = net.ParseIP("2001:0db8:0000:0000:0000:ff00:0042:8329")
)
if connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?debug=true"); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if _, err := connect.Exec("DROP TABLE IF EXISTS clickhouse_test_ip"); assert.NoError(t, err) {
if _, err := tx.Exec(ddl); assert.NoError(t, err) {
if tx, err := connect.Begin(); assert.NoError(t, err) {
if stmt, err := tx.Prepare("INSERT INTO clickhouse_test_ip VALUES(?, ?)"); assert.NoError(t, err) {
if _, err := stmt.Exec(clickhouse.IP(ipv4), clickhouse.IP(ipv6)); !assert.NoError(t, err) {
t.Fatal(err)
}
}
if err := tx.Commit(); !assert.NoError(t, err) {
t.Fatal(err)
}
}
if rows, err := connect.Query("SELECT IPv4, IPv6 FROM clickhouse_test_ip"); assert.NoError(t, err) {
if assert.True(t, rows.Next()) {
var v4, v6 clickhouse.IP
if err := rows.Scan(&v4, &v6); assert.NoError(t, err) {
if assert.Equal(t, ipv4, net.IP(v4)) {
assert.Equal(t, ipv6, net.IP(v6))
}
}
}
}
}
}
}
}
}
func Test_Context_Timeout(t *testing.T) {