github.com/snowflakedb/gosnowflake@v1.9.0/bindings_test.go

// Copyright (c) 2021-2022 Snowflake Computing Inc. All rights reserved.

package gosnowflake

import (
	"bytes"
	"context"
	"database/sql"
	"fmt"
	"log"
	"math/big"
	"math/rand"
	"reflect"
	"strconv"
	"strings"
	"testing"
	"time"
)

const (
	createTableSQL = `create or replace table test_prep_statement(c1 INTEGER,
		c2 FLOAT, c3 BOOLEAN, c4 STRING, C5 BINARY, C6 TIMESTAMP_NTZ,
		C7 TIMESTAMP_LTZ, C8 TIMESTAMP_TZ, C9 DATE, C10 TIME)`
	deleteTableSQL = "drop table if exists TEST_PREP_STATEMENT"
	insertSQL      = "insert into TEST_PREP_STATEMENT values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"
	selectAllSQL   = "select * from TEST_PREP_STATEMENT ORDER BY 1"

	createTableSQLBulkArray = `create or replace table test_bulk_array(c1 INTEGER,
		c2 FLOAT, c3 BOOLEAN, c4 STRING, C5 BINARY, C6 INTEGER)`
	deleteTableSQLBulkArray = "drop table if exists test_bulk_array"
	insertSQLBulkArray      = "insert into test_bulk_array values(?, ?, ?, ?, ?, ?)"
	selectAllSQLBulkArray   = "select * from test_bulk_array ORDER BY 1"

	createTableSQLBulkArrayDateTimeTimestamp = `create or replace table test_bulk_array_DateTimeTimestamp(
		C1 TIMESTAMP_NTZ, C2 TIMESTAMP_LTZ, C3 TIMESTAMP_TZ, C4 DATE, C5 TIME)`
	deleteTableSQLBulkArrayDateTimeTimestamp = "drop table if exists test_bulk_array_DateTimeTimestamp"
	insertSQLBulkArrayDateTimeTimestamp      = "insert into test_bulk_array_DateTimeTimestamp values(?, ?, ?, ?, ?)"
	selectAllSQLBulkArrayDateTimeTimestamp   = "select * from test_bulk_array_DateTimeTimestamp ORDER BY 1"

	enableFeatureMaxLOBSize = "ALTER SESSION SET FEATURE_INCREASED_MAX_LOB_SIZE_IN_MEMORY='ENABLED'"
	unsetFeatureMaxLOBSize  = "ALTER SESSION UNSET FEATURE_INCREASED_MAX_LOB_SIZE_IN_MEMORY"

	// For max LOB size tests
	// maxLOBSize = 128 * 1024 * 1024 // new max LOB size
	maxLOBSize = 16 * 1024 * 1024 // current max LOB size
	largeSize  = maxLOBSize / 2
	mediumSize = largeSize / 2
	originSize = 16 * 1024 * 1024
	smallSize  = 16
	// range to use for generating random numbers
	lobRandomRange = 100000
)

func TestBindingFloat64(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		types := [2]string{"FLOAT", "DOUBLE"}
		expected := 42.23
		var out float64
		var rows *RowsExtended
		for _, v := range types {
			t.Run(v, func(t *testing.T) {
				dbt.mustExec(fmt.Sprintf("CREATE OR REPLACE TABLE test (id int, value %v)", v))
				dbt.mustExec("INSERT INTO test VALUES (1, ?)", expected)
				rows = dbt.mustQuery("SELECT value FROM test WHERE id = ?", 1)
				defer rows.Close()
				if rows.Next() {
					rows.Scan(&out)
					if expected != out {
						dbt.Errorf("%s: %g != %g", v, expected, out)
					}
				} else {
					dbt.Errorf("%s: no data", v)
				}
			})
		}
		dbt.mustExec("DROP TABLE IF EXISTS test")
	})
}

// TestBindingUint64 tests uint64 binding. Should fail as unit64 is not a
// supported binding value by Go's sql package.
func TestBindingUint64(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		expected := uint64(18446744073709551615)
		dbt.mustExec("CREATE OR REPLACE TABLE test (id int, value INTEGER)")
		if _, err := dbt.exec("INSERT INTO test VALUES (1, ?)", expected); err == nil {
			dbt.Fatal("should fail as uint64 values with high bit set are not supported.")
		} else {
			logger.Infof("expected err: %v", err)
		}
		dbt.mustExec("DROP TABLE IF EXISTS test")
	})
}

func TestBindingDateTimeTimestamp(t *testing.T) {
	createDSN(PSTLocation)
	runDBTest(t, func(dbt *DBTest) {
		expected := time.Now()
		dbt.mustExec(
			"CREATE OR REPLACE TABLE tztest (id int, ntz timestamp_ntz, ltz timestamp_ltz, dt date, tm time)")
		stmt, err := dbt.prepare("INSERT INTO tztest(id,ntz,ltz,dt,tm) VALUES(1,?,?,?,?)")
		if err != nil {
			dbt.Fatal(err.Error())
		}
		defer stmt.Close()
		if _, err = stmt.Exec(
			DataTypeTimestampNtz, expected,
			DataTypeTimestampLtz, expected,
			DataTypeDate, expected,
			DataTypeTime, expected); err != nil {
			dbt.Fatal(err)
		}
		rows := dbt.mustQuery("SELECT ntz,ltz,dt,tm FROM tztest WHERE id=?", 1)
		defer rows.Close()
		var ntz, vltz, dt, tm time.Time
		columnTypes, err := rows.ColumnTypes()
		if err != nil {
			dbt.Errorf("column type error. err: %v", err)
		}
		if columnTypes[0].Name() != "NTZ" {
			dbt.Errorf("expected column name: %v, got: %v", "TEST", columnTypes[0])
		}
		canNull := dbt.mustNullable(columnTypes[0])
		if !canNull {
			dbt.Errorf("expected nullable: %v, got: %v", true, canNull)
		}
		if columnTypes[0].DatabaseTypeName() != "TIMESTAMP_NTZ" {
			dbt.Errorf("expected database type: %v, got: %v", "TIMESTAMP_NTZ", columnTypes[0].DatabaseTypeName())
		}
		dbt.mustFailDecimalSize(columnTypes[0])
		dbt.mustFailLength(columnTypes[0])
		cols, err := rows.Columns()
		if err != nil {
			dbt.Errorf("failed to get columns. err: %v", err)
		}
		if len(cols) != 4 || cols[0] != "NTZ" || cols[1] != "LTZ" || cols[2] != "DT" || cols[3] != "TM" {
			dbt.Errorf("failed to get columns. got: %v", cols)
		}
		if rows.Next() {
			rows.Scan(&ntz, &vltz, &dt, &tm)
			if expected.UnixNano() != ntz.UnixNano() {
				dbt.Errorf("returned TIMESTAMP_NTZ value didn't match. expected: %v:%v, got: %v:%v",
					expected.UnixNano(), expected, ntz.UnixNano(), ntz)
			}
			if expected.UnixNano() != vltz.UnixNano() {
				dbt.Errorf("returned TIMESTAMP_LTZ value didn't match. expected: %v:%v, got: %v:%v",
					expected.UnixNano(), expected, vltz.UnixNano(), vltz)
			}
			if expected.Year() != dt.Year() || expected.Month() != dt.Month() || expected.Day() != dt.Day() {
				dbt.Errorf("returned DATE value didn't match. expected: %v:%v, got: %v:%v",
					expected.Unix()*1000, expected, dt.Unix()*1000, dt)
			}
			if expected.Hour() != tm.Hour() || expected.Minute() != tm.Minute() || expected.Second() != tm.Second() || expected.Nanosecond() != tm.Nanosecond() {
				dbt.Errorf("returned TIME value didn't match. expected: %v:%v, got: %v:%v",
					expected.UnixNano(), expected, tm.UnixNano(), tm)
			}
		} else {
			dbt.Error("no data")
		}
		dbt.mustExec("DROP TABLE tztest")
	})

	createDSN("UTC")
}

func TestBindingBinary(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec("CREATE OR REPLACE TABLE bintest (id int, b binary)")
		var b = []byte{0x01, 0x02, 0x03}
		dbt.mustExec("INSERT INTO bintest(id,b) VALUES(1, ?)", DataTypeBinary, b)
		rows := dbt.mustQuery("SELECT b FROM bintest WHERE id=?", 1)
		defer rows.Close()
		if rows.Next() {
			var rb []byte
			if err := rows.Scan(&rb); err != nil {
				dbt.Errorf("failed to scan data. err: %v", err)
			}
			if !bytes.Equal(b, rb) {
				dbt.Errorf("failed to match data. expected: %v, got: %v", b, rb)
			}
		} else {
			dbt.Errorf("no data")
		}
		dbt.mustExec("DROP TABLE bintest")
	})
}

func TestBindingTimestampTZ(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		expected := time.Now()
		dbt.mustExec("CREATE OR REPLACE TABLE tztest (id int, tz timestamp_tz)")
		stmt, err := dbt.prepare("INSERT INTO tztest(id,tz) VALUES(1, ?)")
		if err != nil {
			dbt.Fatal(err.Error())
		}
		defer stmt.Close()
		if _, err = stmt.Exec(DataTypeTimestampTz, expected); err != nil {
			dbt.Fatal(err)
		}
		rows := dbt.mustQuery("SELECT tz FROM tztest WHERE id=?", 1)
		defer rows.Close()
		var v time.Time
		if rows.Next() {
			rows.Scan(&v)
			if expected.UnixNano() != v.UnixNano() {
				dbt.Errorf("returned value didn't match. expected: %v:%v, got: %v:%v",
					expected.UnixNano(), expected, v.UnixNano(), v)
			}
		} else {
			dbt.Error("no data")
		}
		dbt.mustExec("DROP TABLE tztest")
	})
}

// SNOW-755844: Test the use of a pointer *time.Time type in user-defined structures to perform updates/inserts
func TestBindingTimePtrInStruct(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		type timePtrStruct struct {
			id      *int
			timeVal *time.Time
		}
		var expectedID int = 1
		var expectedTime time.Time = time.Now()
		var testStruct timePtrStruct = timePtrStruct{id: &expectedID, timeVal: &expectedTime}
		dbt.mustExec("CREATE OR REPLACE TABLE timeStructTest (id int, tz timestamp_tz)")

		runInsertQuery := false
		for i := 0; i < 2; i++ {
			if !runInsertQuery {
				_, err := dbt.exec("INSERT INTO timeStructTest(id,tz) VALUES(?, ?)", testStruct.id, testStruct.timeVal)
				if err != nil {
					dbt.Fatal(err.Error())
				}
				runInsertQuery = true
			} else {
				// Update row with a new time value
				expectedTime = time.Now().Add(1)
				testStruct.timeVal = &expectedTime
				_, err := dbt.exec("UPDATE timeStructTest SET tz = ? where id = ?", testStruct.timeVal, testStruct.id)
				if err != nil {
					dbt.Fatal(err.Error())
				}
			}

			rows := dbt.mustQuery("SELECT tz FROM timeStructTest WHERE id=?", &expectedID)
			defer rows.Close()
			var v time.Time
			if rows.Next() {
				rows.Scan(&v)
				if expectedTime.UnixNano() != v.UnixNano() {
					dbt.Errorf("returned value didn't match. expected: %v:%v, got: %v:%v",
						expectedTime.UnixNano(), expectedTime, v.UnixNano(), v)
				}
			} else {
				dbt.Error("no data")
			}
		}
		dbt.mustExec("DROP TABLE timeStructTest")
	})
}

// SNOW-755844: Test the use of a time.Time type in user-defined structures to perform updates/inserts
func TestBindingTimeInStruct(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		type timeStruct struct {
			id      int
			timeVal time.Time
		}
		var expectedID int = 1
		var expectedTime time.Time = time.Now()
		var testStruct timeStruct = timeStruct{id: expectedID, timeVal: expectedTime}
		dbt.mustExec("CREATE OR REPLACE TABLE timeStructTest (id int, tz timestamp_tz)")

		runInsertQuery := false
		for i := 0; i < 2; i++ {
			if !runInsertQuery {
				_, err := dbt.exec("INSERT INTO timeStructTest(id,tz) VALUES(?, ?)", testStruct.id, testStruct.timeVal)
				if err != nil {
					dbt.Fatal(err.Error())
				}
				runInsertQuery = true
			} else {
				// Update row with a new time value
				expectedTime = time.Now().Add(1)
				testStruct.timeVal = expectedTime
				_, err := dbt.exec("UPDATE timeStructTest SET tz = ? where id = ?", testStruct.timeVal, testStruct.id)
				if err != nil {
					dbt.Fatal(err.Error())
				}
			}

			rows := dbt.mustQuery("SELECT tz FROM timeStructTest WHERE id=?", &expectedID)
			defer rows.Close()
			var v time.Time
			if rows.Next() {
				rows.Scan(&v)
				if expectedTime.UnixNano() != v.UnixNano() {
					dbt.Errorf("returned value didn't match. expected: %v:%v, got: %v:%v",
						expectedTime.UnixNano(), expectedTime, v.UnixNano(), v)
				}
			} else {
				dbt.Error("no data")
			}
		}
		dbt.mustExec("DROP TABLE timeStructTest")
	})
}

func TestBindingInterface(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		rows := dbt.mustQueryContext(
			WithHigherPrecision(context.Background()), selectVariousTypes)
		defer rows.Close()
		if !rows.Next() {
			dbt.Error("failed to query")
		}
		var v1, v2, v3, v4, v5, v6 any
		if err := rows.Scan(&v1, &v2, &v3, &v4, &v5, &v6); err != nil {
			dbt.Errorf("failed to scan: %#v", err)
		}
		if s1, ok := v1.(*big.Float); !ok || s1.Cmp(big.NewFloat(1.0)) != 0 {
			dbt.Fatalf("failed to fetch. ok: %v, value: %v", ok, v1)
		}
		if s2, ok := v2.(int64); !ok || s2 != 2 {
			dbt.Fatalf("failed to fetch. ok: %v, value: %v", ok, v2)
		}
		if s3, ok := v3.(string); !ok || s3 != "t3" {
			dbt.Fatalf("failed to fetch. ok: %v, value: %v", ok, v3)
		}
		if s4, ok := v4.(float64); !ok || s4 != 4.2 {
			dbt.Fatalf("failed to fetch. ok: %v, value: %v", ok, v4)
		}
	})
}

func TestBindingInterfaceString(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		rows := dbt.mustQuery(selectVariousTypes)
		defer rows.Close()
		if !rows.Next() {
			dbt.Error("failed to query")
		}
		var v1, v2, v3, v4, v5, v6 any
		if err := rows.Scan(&v1, &v2, &v3, &v4, &v5, &v6); err != nil {
			dbt.Errorf("failed to scan: %#v", err)
		}
		if s, ok := v1.(string); !ok {
			dbt.Error("failed to convert to string")
		} else if d, err := strconv.ParseFloat(s, 64); err != nil {
			dbt.Errorf("failed to convert to float. value: %v, err: %v", v1, err)
		} else if d != 1.00 {
			dbt.Errorf("failed to fetch. expected: 1.00, value: %v", v1)
		}
		if s, ok := v2.(string); !ok || s != "2" {
			dbt.Fatalf("failed to fetch. ok: %v, value: %v", ok, v2)
		}
		if s, ok := v3.(string); !ok || s != "t3" {
			dbt.Fatalf("failed to fetch. ok: %v, value: %v", ok, v3)
		}
	})
}

func TestBulkArrayBindingInterfaceNil(t *testing.T) {
	nilArray := make([]any, 1)

	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(createTableSQL)
		defer dbt.mustExec(deleteTableSQL)

		dbt.mustExec(insertSQL, Array(&nilArray), Array(&nilArray),
			Array(&nilArray), Array(&nilArray), Array(&nilArray),
			Array(&nilArray, TimestampNTZType), Array(&nilArray, TimestampTZType),
			Array(&nilArray, TimestampTZType), Array(&nilArray, DateType),
			Array(&nilArray, TimeType))
		rows := dbt.mustQuery(selectAllSQL)
		defer rows.Close()

		var v0 sql.NullInt32
		var v1 sql.NullFloat64
		var v2 sql.NullBool
		var v3 sql.NullString
		var v4 []byte
		var v5, v6, v7, v8, v9 sql.NullTime

		cnt := 0
		for i := 0; rows.Next(); i++ {
			if err := rows.Scan(&v0, &v1, &v2, &v3, &v4, &v5, &v6, &v7, &v8, &v9); err != nil {
				t.Fatal(err)
			}
			if v0.Valid {
				t.Fatalf("failed to fetch the sql.NullInt32 column v0. expected %v, got: %v", nilArray[i], v0)
			}
			if v1.Valid {
				t.Fatalf("failed to fetch the sql.NullFloat64 column v1. expected %v, got: %v", nilArray[i], v1)
			}
			if v2.Valid {
				t.Fatalf("failed to fetch the sql.NullBool column v2. expected %v, got: %v", nilArray[i], v2)
			}
			if v3.Valid {
				t.Fatalf("failed to fetch the sql.NullString column v3. expected %v, got: %v", nilArray[i], v3)
			}
			if v4 != nil {
				t.Fatalf("failed to fetch the []byte column v4. expected %v, got: %v", nilArray[i], v4)
			}
			if v5.Valid {
				t.Fatalf("failed to fetch the sql.NullTime column v5. expected %v, got: %v", nilArray[i], v5)
			}
			if v6.Valid {
				t.Fatalf("failed to fetch the sql.NullTime column v6. expected %v, got: %v", nilArray[i], v6)
			}
			if v7.Valid {
				t.Fatalf("failed to fetch the sql.NullTime column v7. expected %v, got: %v", nilArray[i], v7)
			}
			if v8.Valid {
				t.Fatalf("failed to fetch the sql.NullTime column v8. expected %v, got: %v", nilArray[i], v8)
			}
			if v9.Valid {
				t.Fatalf("failed to fetch the sql.NullTime column v9. expected %v, got: %v", nilArray[i], v9)
			}
			cnt++
		}
		if cnt != len(nilArray) {
			t.Fatal("failed to query")
		}
	})
}

func TestBulkArrayBindingInterface(t *testing.T) {
	intArray := make([]any, 3)
	intArray[0] = int32(100)
	intArray[1] = int32(200)

	fltArray := make([]any, 3)
	fltArray[0] = float64(0.1)
	fltArray[2] = float64(5.678)

	boolArray := make([]any, 3)
	boolArray[1] = false
	boolArray[2] = true

	strArray := make([]any, 3)
	strArray[2] = "test3"

	byteArray := make([]any, 3)
	byteArray[0] = []byte{0x01, 0x02, 0x03}
	byteArray[2] = []byte{0x07, 0x08, 0x09}

	int64Array := make([]any, 3)
	int64Array[0] = int64(100)
	int64Array[1] = int64(200)

	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(createTableSQLBulkArray)
		defer dbt.mustExec(deleteTableSQLBulkArray)

		dbt.mustExec(insertSQLBulkArray, Array(&intArray), Array(&fltArray),
			Array(&boolArray), Array(&strArray), Array(&byteArray), Array(&int64Array))
		rows := dbt.mustQuery(selectAllSQLBulkArray)
		defer rows.Close()

		var v0 sql.NullInt32
		var v1 sql.NullFloat64
		var v2 sql.NullBool
		var v3 sql.NullString
		var v4 []byte
		var v5 sql.NullInt64

		cnt := 0
		for i := 0; rows.Next(); i++ {
			if err := rows.Scan(&v0, &v1, &v2, &v3, &v4, &v5); err != nil {
				t.Fatal(err)
			}
			if v0.Valid {
				if v0.Int32 != intArray[i] {
					t.Fatalf("failed to fetch the sql.NullInt32 column v0. expected %v, got: %v", intArray[i], v0.Int32)
				}
			} else if intArray[i] != nil {
				t.Fatalf("failed to fetch the sql.NullInt32 column v0. expected %v, got: %v", intArray[i], v0)
			}
			if v1.Valid {
				if v1.Float64 != fltArray[i] {
					t.Fatalf("failed to fetch the sql.NullFloat64 column v1. expected %v, got: %v", fltArray[i], v1.Float64)
				}
			} else if fltArray[i] != nil {
				t.Fatalf("failed to fetch the sql.NullFloat64 column v1. expected %v, got: %v", fltArray[i], v1)
			}
			if v2.Valid {
				if v2.Bool != boolArray[i] {
					t.Fatalf("failed to fetch the sql.NullBool column v2. expected %v, got: %v", boolArray[i], v2.Bool)
				}
			} else if boolArray[i] != nil {
				t.Fatalf("failed to fetch the sql.NullBool column v2. expected %v, got: %v", boolArray[i], v2)
			}
			if v3.Valid {
				if v3.String != strArray[i] {
					t.Fatalf("failed to fetch the sql.NullString column v3. expected %v, got: %v", strArray[i], v3.String)
				}
			} else if strArray[i] != nil {
				t.Fatalf("failed to fetch the sql.NullString column v3. expected %v, got: %v", strArray[i], v3)
			}
			if byteArray[i] != nil {
				if !bytes.Equal(v4, byteArray[i].([]byte)) {
					t.Fatalf("failed to fetch the []byte column v4. expected %v, got: %v", byteArray[i], v4)
				}
			} else if v4 != nil {
				t.Fatalf("failed to fetch the []byte column v4. expected %v, got: %v", byteArray[i], v4)
			}
			if v5.Valid {
				if v5.Int64 != int64Array[i] {
					t.Fatalf("failed to fetch the sql.NullInt64 column v5. expected %v, got: %v", int64Array[i], v5.Int64)
				}
			} else if int64Array[i] != nil {
				t.Fatalf("failed to fetch the sql.NullInt64 column v5. expected %v, got: %v", int64Array[i], v5)
			}
			cnt++
		}
		if cnt != len(intArray) {
			t.Fatal("failed to query")
		}
	})
}

func TestBulkArrayBindingInterfaceDateTimeTimestamp(t *testing.T) {
	tz := time.Now()
	createDSN(PSTLocation)

	now := time.Now()
	loc, err := time.LoadLocation(PSTLocation)
	if err != nil {
		t.Error(err)
	}
	ntzArray := make([]any, 3)
	ntzArray[0] = now
	ntzArray[1] = now.Add(1)

	ltzArray := make([]any, 3)
	ltzArray[1] = now.Add(2).In(loc)
	ltzArray[2] = now.Add(3).In(loc)

	tzArray := make([]any, 3)
	tzArray[0] = tz.Add(4).In(loc)
	tzArray[2] = tz.Add(5).In(loc)

	dtArray := make([]any, 3)
	dtArray[0] = tz.Add(6).In(loc)
	dtArray[1] = now.Add(7).In(loc)

	tmArray := make([]any, 3)
	tmArray[1] = now.Add(8).In(loc)
	tmArray[2] = now.Add(9).In(loc)

	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(createTableSQLBulkArrayDateTimeTimestamp)
		defer dbt.mustExec(deleteTableSQLBulkArrayDateTimeTimestamp)

		dbt.mustExec(insertSQLBulkArrayDateTimeTimestamp,
			Array(&ntzArray, TimestampNTZType), Array(&ltzArray, TimestampLTZType),
			Array(&tzArray, TimestampTZType), Array(&dtArray, DateType),
			Array(&tmArray, TimeType))

		rows := dbt.mustQuery(selectAllSQLBulkArrayDateTimeTimestamp)
		defer rows.Close()

		var v0, v1, v2, v3, v4 sql.NullTime

		cnt := 0
		for i := 0; rows.Next(); i++ {
			if err := rows.Scan(&v0, &v1, &v2, &v3, &v4); err != nil {
				t.Fatal(err)
			}
			if v0.Valid {
				if v0.Time.UnixNano() != ntzArray[i].(time.Time).UnixNano() {
					t.Fatalf("failed to fetch the column v0. expected %v, got: %v", ntzArray[i], v0)
				}
			} else if ntzArray[i] != nil {
				t.Fatalf("failed to fetch the column v0. expected %v, got: %v", ntzArray[i], v0)
			}
			if v1.Valid {
				if v1.Time.UnixNano() != ltzArray[i].(time.Time).UnixNano() {
					t.Fatalf("failed to fetch the column v1. expected %v, got: %v", ltzArray[i], v1)
				}
			} else if ltzArray[i] != nil {
				t.Fatalf("failed to fetch the column v1. expected %v, got: %v", ltzArray[i], v1)
			}
			if v2.Valid {
				if v2.Time.UnixNano() != tzArray[i].(time.Time).UnixNano() {
					t.Fatalf("failed to fetch the column v2. expected %v, got: %v", tzArray[i], v2)
				}
			} else if tzArray[i] != nil {
				t.Fatalf("failed to fetch the column v2. expected %v, got: %v", tzArray[i], v2)
			}
			if v3.Valid {
				if v3.Time.Year() != dtArray[i].(time.Time).Year() ||
					v3.Time.Month() != dtArray[i].(time.Time).Month() ||
					v3.Time.Day() != dtArray[i].(time.Time).Day() {
					t.Fatalf("failed to fetch the column v3. expected %v, got: %v", dtArray[i], v3)
				}
			} else if dtArray[i] != nil {
				t.Fatalf("failed to fetch the column v3. expected %v, got: %v", dtArray[i], v3)
			}
			if v4.Valid {
				if v4.Time.Hour() != tmArray[i].(time.Time).Hour() ||
					v4.Time.Minute() != tmArray[i].(time.Time).Minute() ||
					v4.Time.Second() != tmArray[i].(time.Time).Second() {
					t.Fatalf("failed to fetch the column v4. expected %v, got: %v", tmArray[i], v4)
				}
			} else if tmArray[i] != nil {
				t.Fatalf("failed to fetch the column v4. expected %v, got: %v", tmArray[i], v4)
			}
			cnt++
		}
		if cnt != len(ntzArray) {
			t.Fatal("failed to query")
		}
	})
	createDSN("UTC")
}

// TestBindingArray tests basic array binding via the usage of the Array
// function that converts the passed Golang slice to a Snowflake array type
func TestBindingArray(t *testing.T) {
	testBindingArray(t, false)
}

// TestBindingBulkArray tests bulk array binding via the usage of the Array
// function that converts the passed Golang slice to a Snowflake array type
func TestBindingBulkArray(t *testing.T) {
	if runningOnGithubAction() {
		t.Skip("client_stage_array_binding_threshold value is internal")
	}
	testBindingArray(t, true)
}

func testBindingArray(t *testing.T, bulk bool) {
	tz := time.Now()
	createDSN(PSTLocation)
	intArray := []int{1, 2, 3}
	fltArray := []float64{0.1, 2.34, 5.678}
	boolArray := []bool{true, false, true}
	strArray := []string{"test1", "test2", "test3"}
	byteArray := [][]byte{{0x01, 0x02, 0x03}, {0x04, 0x05, 0x06}, {0x07, 0x08, 0x09}}

	now := time.Now()
	loc, err := time.LoadLocation(PSTLocation)
	if err != nil {
		t.Error(err)
	}
	ntzArray := []time.Time{now, now.Add(1), now.Add(2)}
	ltzArray := []time.Time{now.Add(3).In(loc), now.Add(4).In(loc), now.Add(5).In(loc)}
	tzArray := []time.Time{tz.Add(6).In(loc), tz.Add(7).In(loc), tz.Add(8).In(loc)}
	dtArray := []time.Time{now.Add(9), now.Add(10), now.Add(11)}
	tmArray := []time.Time{now.Add(12), now.Add(13), now.Add(14)}

	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(createTableSQL)
		defer dbt.mustExec(deleteTableSQL)
		if bulk {
			if _, err := dbt.exec("ALTER SESSION SET CLIENT_STAGE_ARRAY_BINDING_THRESHOLD = 1"); err != nil {
				t.Error(err)
			}
		}

		dbt.mustExec(insertSQL, Array(&intArray), Array(&fltArray),
			Array(&boolArray), Array(&strArray), Array(&byteArray),
			Array(&ntzArray, TimestampNTZType), Array(&ltzArray, TimestampLTZType),
			Array(&tzArray, TimestampTZType), Array(&dtArray, DateType),
			Array(&tmArray, TimeType))
		rows := dbt.mustQuery(selectAllSQL)
		defer rows.Close()

		var v0 int
		var v1 float64
		var v2 bool
		var v3 string
		var v4 []byte
		var v5, v6, v7, v8, v9 time.Time
		cnt := 0
		for i := 0; rows.Next(); i++ {
			if err := rows.Scan(&v0, &v1, &v2, &v3, &v4, &v5, &v6, &v7, &v8, &v9); err != nil {
				t.Fatal(err)
			}
			if v0 != intArray[i] {
				t.Fatalf("failed to fetch. expected %v, got: %v", intArray[i], v0)
			}
			if v1 != fltArray[i] {
				t.Fatalf("failed to fetch. expected %v, got: %v", fltArray[i], v1)
			}
			if v2 != boolArray[i] {
				t.Fatalf("failed to fetch. expected %v, got: %v", boolArray[i], v2)
			}
			if v3 != strArray[i] {
				t.Fatalf("failed to fetch. expected %v, got: %v", strArray[i], v3)
			}
			if !bytes.Equal(v4, byteArray[i]) {
				t.Fatalf("failed to fetch. expected %v, got: %v", byteArray[i], v4)
			}
			if v5.UnixNano() != ntzArray[i].UnixNano() {
				t.Fatalf("failed to fetch. expected %v, got: %v", ntzArray[i], v5)
			}
			if v6.UnixNano() != ltzArray[i].UnixNano() {
				t.Fatalf("failed to fetch. expected %v, got: %v", ltzArray[i], v6)
			}
			if v7.UnixNano() != tzArray[i].UnixNano() {
				t.Fatalf("failed to fetch. expected %v, got: %v", tzArray[i], v7)
			}
			if v8.Year() != dtArray[i].Year() || v8.Month() != dtArray[i].Month() || v8.Day() != dtArray[i].Day() {
				t.Fatalf("failed to fetch. expected %v, got: %v", dtArray[i], v8)
			}
			if v9.Hour() != tmArray[i].Hour() || v9.Minute() != tmArray[i].Minute() || v9.Second() != tmArray[i].Second() {
				t.Fatalf("failed to fetch. expected %v, got: %v", tmArray[i], v9)
			}
			cnt++
		}
		if cnt != len(intArray) {
			t.Fatal("failed to query")
		}
	})
	createDSN("UTC")
}

func TestBulkArrayBinding(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(fmt.Sprintf("create or replace table %v (c1 integer, c2 string, c3 timestamp_ltz, c4 timestamp_tz, c5 timestamp_ntz, c6 date, c7 time, c8 binary)", dbname))
		now := time.Now()
		someTime := time.Date(1, time.January, 1, 12, 34, 56, 123456789, time.UTC)
		someDate := time.Date(2024, time.March, 18, 0, 0, 0, 0, time.UTC)
		someBinary := []byte{0x01, 0x02, 0x03}
		numRows := 100000
		intArr := make([]int, numRows)
		strArr := make([]string, numRows)
		ltzArr := make([]time.Time, numRows)
		tzArr := make([]time.Time, numRows)
		ntzArr := make([]time.Time, numRows)
		dateArr := make([]time.Time, numRows)
		timeArr := make([]time.Time, numRows)
		binArr := make([][]byte, numRows)
		for i := 0; i < numRows; i++ {
			intArr[i] = i
			strArr[i] = "test" + strconv.Itoa(i)
			ltzArr[i] = now
			tzArr[i] = now.Add(time.Hour).UTC()
			ntzArr[i] = now.Add(2 * time.Hour)
			dateArr[i] = someDate
			timeArr[i] = someTime
			binArr[i] = someBinary
		}
		dbt.mustExec(fmt.Sprintf("insert into %v values (?, ?, ?, ?, ?, ?, ?, ?)", dbname), Array(&intArr), Array(&strArr), Array(&ltzArr, TimestampLTZType), Array(&tzArr, TimestampTZType), Array(&ntzArr, TimestampNTZType), Array(&dateArr, DateType), Array(&timeArr, TimeType), Array(&binArr))
		rows := dbt.mustQuery("select * from " + dbname + " order by c1")
		defer rows.Close()
		cnt := 0
		var i int
		var s string
		var ltz, tz, ntz, date, tt time.Time
		var b []byte
		for rows.Next() {
			if err := rows.Scan(&i, &s, &ltz, &tz, &ntz, &date, &tt, &b); err != nil {
				t.Fatal(err)
			}
			assertEqualE(t, i, cnt)
			assertEqualE(t, "test"+strconv.Itoa(cnt), s)
			assertEqualE(t, ltz.UTC(), now.UTC())
			assertEqualE(t, tz.UTC(), now.Add(time.Hour).UTC())
			assertEqualE(t, ntz.UTC(), now.Add(2*time.Hour).UTC())
			assertEqualE(t, date, someDate)
			assertEqualE(t, tt, someTime)
			assertBytesEqualE(t, b, someBinary)
			cnt++
		}
		if cnt != numRows {
			t.Fatalf("expected %v rows, got %v", numRows, cnt)
		}
	})
}

func TestBulkArrayBindingTimeWithPrecision(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(fmt.Sprintf("create or replace table %v (s time(0), ms time(3), us time(6), ns time(9))", dbname))
		someTimeWithSeconds := time.Date(1, time.January, 1, 1, 1, 1, 0, time.UTC)
		someTimeWithMilliseconds := time.Date(1, time.January, 1, 2, 2, 2, 123000000, time.UTC)
		someTimeWithMicroseconds := time.Date(1, time.January, 1, 3, 3, 3, 123456000, time.UTC)
		someTimeWithNanoseconds := time.Date(1, time.January, 1, 4, 4, 4, 123456789, time.UTC)
		numRows := 100000
		secondsArr := make([]time.Time, numRows)
		millisecondsArr := make([]time.Time, numRows)
		microsecondsArr := make([]time.Time, numRows)
		nanosecondsArr := make([]time.Time, numRows)
		for i := 0; i < numRows; i++ {
			secondsArr[i] = someTimeWithSeconds
			millisecondsArr[i] = someTimeWithMilliseconds
			microsecondsArr[i] = someTimeWithMicroseconds
			nanosecondsArr[i] = someTimeWithNanoseconds
		}
		dbt.mustExec(fmt.Sprintf("insert into %v values (?, ?, ?, ?)", dbname), Array(&secondsArr, TimeType), Array(&millisecondsArr, TimeType), Array(&microsecondsArr, TimeType), Array(&nanosecondsArr, TimeType))
		rows := dbt.mustQuery("select * from " + dbname)
		defer rows.Close()
		cnt := 0
		var s, ms, us, ns time.Time
		for rows.Next() {
			if err := rows.Scan(&s, &ms, &us, &ns); err != nil {
				t.Fatal(err)
			}
			assertEqualE(t, s, someTimeWithSeconds)
			assertEqualE(t, ms, someTimeWithMilliseconds)
			assertEqualE(t, us, someTimeWithMicroseconds)
			assertEqualE(t, ns, someTimeWithNanoseconds)
			cnt++
		}
		if cnt != numRows {
			t.Fatalf("expected %v rows, got %v", numRows, cnt)
		}
	})
}

func TestBulkArrayMultiPartBinding(t *testing.T) {
	rowCount := 1000000 // large enough to be partitioned into multiple files
	rand.Seed(time.Now().UnixNano())
	randomIter := rand.Intn(3) + 2
	randomStrings := make([]string, rowCount)
	str := randomString(30)
	for i := 0; i < rowCount; i++ {
		randomStrings[i] = str
	}
	tempTableName := fmt.Sprintf("test_table_%v", randomString(5))
	ctx := context.Background()

	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec(fmt.Sprintf("CREATE TABLE %s (C VARCHAR(64) NOT NULL)", tempTableName))
		defer dbt.mustExec("drop table " + tempTableName)

		for i := 0; i < randomIter; i++ {
			dbt.mustExecContext(ctx,
				fmt.Sprintf("INSERT INTO %s VALUES (?)", tempTableName),
				Array(&randomStrings))
			rows := dbt.mustQuery("select count(*) from " + tempTableName)
			defer rows.Close()
			if rows.Next() {
				var count int
				if err := rows.Scan(&count); err != nil {
					t.Error(err)
				}
			}
		}

		rows := dbt.mustQuery("select count(*) from " + tempTableName)
		defer rows.Close()
		if rows.Next() {
			var count int
			if err := rows.Scan(&count); err != nil {
				t.Error(err)
			}
			if count != randomIter*rowCount {
				t.Errorf("expected %v rows, got %v rows intead", randomIter*rowCount, count)
			}
		}
	})
}

func TestBulkArrayMultiPartBindingInt(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec("create or replace table binding_test (c1 integer)")
		startNum := 1000000
		endNum := 3000000
		numRows := endNum - startNum
		intArr := make([]int, numRows)
		for i := startNum; i < endNum; i++ {
			intArr[i-startNum] = i
		}
		_, err := dbt.exec("insert into binding_test values (?)", Array(&intArr))
		if err != nil {
			t.Errorf("Should have succeeded to insert. err: %v", err)
		}

		rows := dbt.mustQuery("select * from binding_test order by c1")
		defer rows.Close()
		cnt := startNum
		var i int
		for rows.Next() {
			if err := rows.Scan(&i); err != nil {
				t.Fatal(err)
			}
			if i != cnt {
				t.Errorf("expected: %v, got: %v", cnt, i)
			}
			cnt++
		}
		if cnt != endNum {
			t.Fatalf("expected %v rows, got %v", numRows, (cnt - startNum))
		}
		dbt.mustExec("DROP TABLE binding_test")
	})
}

func TestBulkArrayMultiPartBindingWithNull(t *testing.T) {
	runDBTest(t, func(dbt *DBTest) {
		dbt.mustExec("create or replace table binding_test (c1 integer, c2 string)")
		startNum := 1000000
		endNum := 2000000
		numRows := endNum - startNum

		// Define the integer and string arrays
		intArr := make([]any, numRows)
		stringArr := make([]any, numRows)
		for i := startNum; i < endNum; i++ {
			intArr[i-startNum] = i
			stringArr[i-startNum] = fmt.Sprint(i)
		}

		// Set some of the rows to NULL
		intArr[numRows-1] = nil
		intArr[numRows-2] = nil
		intArr[numRows-3] = nil
		stringArr[1] = nil
		stringArr[2] = nil
		stringArr[3] = nil

		_, err := dbt.exec("insert into binding_test values (?, ?)", Array(&intArr), Array(&stringArr))
		if err != nil {
			t.Errorf("Should have succeeded to insert. err: %v", err)
		}

		rows := dbt.mustQuery("select * from binding_test order by c1,c2")
		defer rows.Close()
		cnt := startNum
		var i sql.NullInt32
		var s sql.NullString
		for rows.Next() {
			if err := rows.Scan(&i, &s); err != nil {
				t.Fatal(err)
			}
			// Verify integer column c1
			if i.Valid {
				if int(i.Int32) != intArr[cnt-startNum] {
					t.Fatalf("expected: %v, got: %v", cnt, int(i.Int32))
				}
			} else if !(cnt == startNum+numRows-1 || cnt == startNum+numRows-2 || cnt == startNum+numRows-3) {
				t.Fatalf("expected NULL in column c1 at index: %v", cnt-startNum)
			}
			// Verify string column c2
			if s.Valid {
				if s.String != stringArr[cnt-startNum] {
					t.Fatalf("expected: %v, got: %v", cnt, s.String)
				}
			} else if !(cnt == startNum+1 || cnt == startNum+2 || cnt == startNum+3) {
				t.Fatalf("expected NULL in column c2 at index: %v", cnt-startNum)
			}
			cnt++
		}
		if cnt != endNum {
			t.Fatalf("expected %v rows, got %v", numRows, (cnt - startNum))
		}
		dbt.mustExec("DROP TABLE binding_test")
	})
}

func TestFunctionParameters(t *testing.T) {
	testcases := []struct {
		testDesc   string
		paramType  string
		input      any
		nullResult bool
	}{
		{"textAndNullStringResultInNull", "text", sql.NullString{}, true},
		{"numberAndNullInt64ResultInNull", "number", sql.NullInt64{}, true},
		{"floatAndNullFloat64ResultInNull", "float", sql.NullFloat64{}, true},
		{"booleanAndAndNullBoolResultInNull", "boolean", sql.NullBool{}, true},
		{"dateAndTypedNullTimeResultInNull", "date", TypedNullTime{sql.NullTime{}, DateType}, true},
		{"datetimeAndTypedNullTimeResultInNull", "datetime", TypedNullTime{sql.NullTime{}, TimestampNTZType}, true},
		{"timeAndTypedNullTimeResultInNull", "time", TypedNullTime{sql.NullTime{}, TimeType}, true},
		{"timestampAndTypedNullTimeResultInNull", "timestamp", TypedNullTime{sql.NullTime{}, TimestampNTZType}, true},
		{"timestamp_ntzAndTypedNullTimeResultInNull", "timestamp_ntz", TypedNullTime{sql.NullTime{}, TimestampNTZType}, true},
		{"timestamp_ltzAndTypedNullTimeResultInNull", "timestamp_ltz", TypedNullTime{sql.NullTime{}, TimestampLTZType}, true},
		{"timestamp_tzAndTypedNullTimeResultInNull", "timestamp_tz", TypedNullTime{sql.NullTime{}, TimestampTZType}, true},
		{"textAndStringResultInNotNull", "text", "string", false},
		{"numberAndIntegerResultInNotNull", "number", 123, false},
		{"floatAndFloatResultInNotNull", "float", 123.01, false},
		{"booleanAndBooleanResultInNotNull", "boolean", true, false},
		{"dateAndTimeResultInNotNull", "date", time.Now(), false},
		{"datetimeAndTimeResultInNotNull", "datetime", time.Now(), false},
		{"timeAndTimeResultInNotNull", "time", time.Now(), false},
		{"timestampAndTimeResultInNotNull", "timestamp", time.Now(), false},
		{"timestamp_ntzAndTimeResultInNotNull", "timestamp_ntz", time.Now(), false},
		{"timestamp_ltzAndTimeResultInNotNull", "timestamp_ltz", time.Now(), false},
		{"timestamp_tzAndTimeResultInNotNull", "timestamp_tz", time.Now(), false},
	}

	runDBTest(t, func(dbt *DBTest) {
		_, err := dbt.exec("ALTER SESSION SET BIND_NULL_VALUE_USE_NULL_DATATYPE=false")
		if err != nil {
			log.Println(err)
		}
		for _, tc := range testcases {
			t.Run(tc.testDesc, func(t *testing.T) {
				query := fmt.Sprintf(`
				CREATE OR REPLACE FUNCTION NULLPARAMFUNCTION("param1" %v)
				RETURNS TABLE("r1" %v)
				LANGUAGE SQL
				AS 'select param1';`, tc.paramType, tc.paramType)
				dbt.mustExec(query)
				rows, err := dbt.query("select * from table(NULLPARAMFUNCTION(?))", tc.input)
				if err != nil {
					t.Fatal(err)
				}
				defer rows.Close()
				if rows.Err() != nil {
					t.Fatal(err)
				}
				if !rows.Next() {
					t.Fatal("no rows fetched")
				}
				var r1 any
				err = rows.Scan(&r1)
				if err != nil {
					t.Fatal(err)
				}
				if tc.nullResult && r1 != nil {
					t.Fatalf("the result for %v is of type %v but should be null", tc.paramType, reflect.TypeOf(r1))
				}
				if !tc.nullResult && r1 == nil {
					t.Fatalf("the result for %v should not be null", tc.paramType)
				}
			})
		}
	})
}

func TestVariousBindingModes(t *testing.T) {
	testcases := []struct {
		testDesc  string
		paramType string
		input     any
		isNil     bool
	}{
		{"textAndString", "text", "string", false},
		{"numberAndInteger", "number", 123, false},
		{"floatAndFloat", "float", 123.01, false},
		{"booleanAndBoolean", "boolean", true, false},
		{"dateAndTime", "date", time.Now().Truncate(24 * time.Hour), false},
		{"datetimeAndTime", "datetime", time.Now(), false},
		{"timeAndTime", "time", "12:34:56", false},
		{"timestampAndTime", "timestamp", time.Now(), false},
		{"timestamp_ntzAndTime", "timestamp_ntz", time.Now(), false},
		{"timestamp_ltzAndTime", "timestamp_ltz", time.Now(), false},
		{"timestamp_tzAndTime", "timestamp_tz", time.Now(), false},
		{"textAndNullString", "text", sql.NullString{}, true},
		{"numberAndNullInt64", "number", sql.NullInt64{}, true},
		{"floatAndNullFloat64", "float", sql.NullFloat64{}, true},
		{"booleanAndAndNullBool", "boolean", sql.NullBool{}, true},
		{"dateAndTypedNullTime", "date", TypedNullTime{sql.NullTime{}, DateType}, true},
		{"datetimeAndTypedNullTime", "datetime", TypedNullTime{sql.NullTime{}, TimestampNTZType}, true},
		{"timeAndTypedNullTime", "time", TypedNullTime{sql.NullTime{}, TimeType}, true},
		{"timestampAndTypedNullTime", "timestamp", TypedNullTime{sql.NullTime{}, TimestampNTZType}, true},
		{"timestamp_ntzAndTypedNullTime", "timestamp_ntz", TypedNullTime{sql.NullTime{}, TimestampNTZType}, true},
		{"timestamp_ltzAndTypedNullTime", "timestamp_ltz", TypedNullTime{sql.NullTime{}, TimestampLTZType}, true},
		{"timestamp_tzAndTypedNullTime", "timestamp_tz", TypedNullTime{sql.NullTime{}, TimestampTZType}, true},
		{"LOBSmallSize", fmt.Sprintf("varchar(%v)", smallSize), randomString(smallSize), false},
		{"LOBOriginSize", fmt.Sprintf("varchar(%v)", originSize), randomString(originSize), false},
		{"LOBMediumSize", fmt.Sprintf("varchar(%v)", mediumSize), randomString(mediumSize), false},
		{"LOBLargeSize", fmt.Sprintf("varchar(%v)", largeSize), randomString(largeSize), false},
		{"LOBMaxSize", fmt.Sprintf("varchar(%v)", maxLOBSize), randomString(maxLOBSize), false},
	}

	bindingModes := []struct {
		param     string
		query     string
		transform func(any) any
	}{
		{
			param:     "?",
			transform: func(v any) any { return v },
		},
		{
			param:     ":1",
			transform: func(v any) any { return v },
		},
		{
			param:     ":param",
			transform: func(v any) any { return sql.Named("param", v) },
		},
	}

	runDBTest(t, func(dbt *DBTest) {
		for _, tc := range testcases {
			// TODO SNOW-1264687
			if strings.Contains(tc.testDesc, "LOB") {
				skipOnJenkins(t, "skipped until SNOW-1264687 is fixed")
			}
			for _, bindingMode := range bindingModes {
				t.Run(tc.testDesc+" "+bindingMode.param, func(t *testing.T) {
					query := fmt.Sprintf(`CREATE OR REPLACE TABLE BINDING_MODES(param1 %v)`, tc.paramType)
					dbt.mustExec(query)
					if _, err := dbt.exec(fmt.Sprintf("INSERT INTO BINDING_MODES VALUES (%v)", bindingMode.param), bindingMode.transform(tc.input)); err != nil {
						t.Fatal(err)
					}
					if tc.isNil {
						query = "SELECT * FROM BINDING_MODES WHERE param1 IS NULL"
					} else {
						query = fmt.Sprintf("SELECT * FROM BINDING_MODES WHERE param1 = %v", bindingMode.param)
					}
					rows, err := dbt.query(query, bindingMode.transform(tc.input))
					if err != nil {
						t.Fatal(err)
					}
					defer rows.Close()
					if !rows.Next() {
						t.Fatal("Expected to return a row")
					}
				})
			}
		}
	})
}

func TestLOBRetrievalWithArrow(t *testing.T) {
	testLOBRetrieval(t, true)
}

func TestLOBRetrievalWithJSON(t *testing.T) {
	testLOBRetrieval(t, false)
}

func testLOBRetrieval(t *testing.T, useArrowFormat bool) {
	// the LOB sizes to be tested
	testSizes := [5]int{smallSize, originSize, mediumSize, largeSize, maxLOBSize}
	var res string

	runDBTest(t, func(dbt *DBTest) {
		dbt.exec(enableFeatureMaxLOBSize)
		if useArrowFormat {
			dbt.mustExec(forceARROW)
		} else {
			dbt.mustExec(forceJSON)
		}

		for _, testSize := range testSizes {
			t.Run(fmt.Sprintf("testLOB_%v_useArrowFormat=%v", strconv.Itoa(testSize), strconv.FormatBool(useArrowFormat)), func(t *testing.T) {
				rows, err := dbt.query(fmt.Sprintf("SELECT randstr(%v, 124)", testSize))
				assertNilF(t, err)
				defer rows.Close()
				assertTrueF(t, rows.Next(), fmt.Sprintf("no rows returned for the LOB size %v", testSize))

				// retrieve the result
				err = rows.Scan(&res)
				assertNilF(t, err)

				// verify the length of the result
				assertEqualF(t, len(res), testSize)
			})
		}
		dbt.exec(unsetFeatureMaxLOBSize)
	})
}

func TestInsertLobDataWithLiteralArrow(t *testing.T) {
	// TODO SNOW-1264687
	skipOnJenkins(t, "skipped until SNOW-1264687 is fixed")
	testInsertLOBData(t, true, true)
}

func TestInsertLobDataWithLiteralJSON(t *testing.T) {
	// TODO SNOW-1264687
	skipOnJenkins(t, "skipped until SNOW-1264687 is fixed")
	testInsertLOBData(t, false, true)
}

func TestInsertLobDataWithBindingsArrow(t *testing.T) {
	// TODO SNOW-1264687
	skipOnJenkins(t, "skipped until SNOW-1264687 is fixed")
	testInsertLOBData(t, true, false)
}

func TestInsertLobDataWithBindingsJSON(t *testing.T) {
	// TODO SNOW-1264687
	skipOnJenkins(t, "skipped until SNOW-1264687 is fixed")
	testInsertLOBData(t, false, false)
}

func testInsertLOBData(t *testing.T, useArrowFormat bool, isLiteral bool) {
	expectedNumCols := 3
	columnMeta := []struct {
		columnName string
		columnType reflect.Type
	}{
		{"C1", reflect.TypeOf("")},
		{"C2", reflect.TypeOf("")},
		{"C3", reflect.TypeOf(int64(0))},
	}
	testCases := []struct {
		testDesc string
		c1Size   int
		c2Size   int
		c3Size   int
	}{
		{"testLOBInsertSmallSize", smallSize, smallSize, lobRandomRange},
		{"testLOBInsertOriginSize", originSize, originSize, lobRandomRange},
		{"testLOBInsertMediumSize", mediumSize, originSize, lobRandomRange},
		{"testLOBInsertLargeSize", largeSize, originSize, lobRandomRange},
		{"testLOBInsertMaxSize", maxLOBSize, originSize, lobRandomRange},
	}

	runDBTest(t, func(dbt *DBTest) {
		var c1 string
		var c2 string
		var c3 int

		dbt.exec(enableFeatureMaxLOBSize)
		if useArrowFormat {
			dbt.mustExec(forceARROW)
		} else {
			dbt.mustExec(forceJSON)
		}

		for _, tc := range testCases {
			t.Run(tc.testDesc, func(t *testing.T) {
				// initialize test data
				c1Data := randomString(tc.c1Size)
				c2Data := randomString(tc.c2Size)
				c3Data := rand.Intn(tc.c3Size)

				dbt.mustExec(fmt.Sprintf("CREATE OR REPLACE TABLE lob_test_table (c1 varchar(%v), c2 varchar(%v), c3 int)", tc.c1Size, tc.c2Size))
				if isLiteral {
					dbt.mustExec(fmt.Sprintf("INSERT INTO lob_test_table VALUES ('%s', '%s', %v)", c1Data, c2Data, c3Data))
				} else {
					dbt.mustExec("INSERT INTO lob_test_table VALUES (?, ?, ?)", c1Data, c2Data, c3Data)
				}
				rows, err := dbt.query("SELECT * FROM lob_test_table")
				assertNilF(t, err)
				defer rows.Close()
				assertTrueF(t, rows.Next(), fmt.Sprintf("%s: no rows returned", tc.testDesc))

				err = rows.Scan(&c1, &c2, &c3)
				assertNilF(t, err)

				// check the number of columns
				columnTypes, err := rows.ColumnTypes()
				assertNilF(t, err)
				assertEqualF(t, len(columnTypes), expectedNumCols)

				// verify the column metadata: name, type and length
				for colIdx := 0; colIdx < expectedNumCols; colIdx++ {
					colName := columnTypes[colIdx].Name()
					assertEqualF(t, colName, columnMeta[colIdx].columnName)

					colType := columnTypes[colIdx].ScanType()
					assertEqualF(t, colType, columnMeta[colIdx].columnType)

					colLength, ok := columnTypes[colIdx].Length()

					switch colIdx {
					case 0:
						assertTrueF(t, ok)
						assertEqualF(t, colLength, int64(tc.c1Size))
						// verify the data
						assertEqualF(t, c1, c1Data)
					case 1:
						assertTrueF(t, ok)
						assertEqualF(t, colLength, int64(tc.c2Size))
						// verify the data
						assertEqualF(t, c2, c2Data)
					case 2:
						assertFalseF(t, ok)
						// verify the data
						assertEqualF(t, c3, c3Data)
					}
				}
			})
			dbt.mustExec("DROP TABLE IF EXISTS lob_test_table")
		}
		dbt.exec(unsetFeatureMaxLOBSize)
	})
}