int listen(int, int);
int lstat(uintptr_t, uintptr_t);
int pause();
int pread64(int, uintptr_t, size_t, long long);
int pwrite64(int, uintptr_t, size_t, long long);
#define c_select select
int select(int, uintptr_t, uintptr_t, uintptr_t, uintptr_t);
int pselect(int, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t);
int setregid(int, int);
int setreuid(int, int);
int shutdown(int, int);

int listen(int, int);
int lstat(uintptr_t, uintptr_t);
int pause();
int pread64(int, uintptr_t, size_t, long long);
int pwrite64(int, uintptr_t, size_t, long long);
#define c_select select
int select(int, uintptr_t, uintptr_t, uintptr_t, uintptr_t);
int pselect(int, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t);
int setregid(int, int);
int setreuid(int, int);
int shutdown(int, int);

// license that can be found in the LICENSE file.

package runtime

// This file contains the implementation of Go select statements.

import (
	"internal/abi"
	"unsafe"
)

const debugSelect = false

// Select case descriptor.
// Known to compiler.
// Changes here must also be made in src/cmd/compile/internal/walk/select.go's scasetype.
type scase struct {
	c    *hchan         // chan
	elem unsafe.Pointer // data element
}

			return err
		}

		if strings.EqualFold(s3Select.Input.JSONArgs.ContentType, "lines") {
			if simdjson.SupportedCPU() {
				s3Select.recordReader = simdj.NewReader(s3Select.progressReader, &s3Select.Input.JSONArgs)
			} else {
				s3Select.recordReader = json.NewPReader(s3Select.progressReader, &s3Select.Input.JSONArgs)
			}
		} else {
			s3Select.recordReader = json.NewReader(s3Select.progressReader, &s3Select.Input.JSONArgs)
		}

var counterErrorsInvalidToolchainInFile = telemetry.NewCounter("go/errors:invalid-toolchain-in-file")

// Select invokes a different Go toolchain if directed by
// the GOTOOLCHAIN environment variable or the user's configuration
// or go.mod file.
// It must be called early in startup.
// See https://go.dev/doc/toolchain#select.
func Select() {
	log.SetPrefix("go: ")
	defer log.SetPrefix("")

	if !modload.WillBeEnabled() {
		return
	}

// license that can be found in the LICENSE file.

package codegen

func f() {
	ch1 := make(chan int)
	ch2 := make(chan int)
	for {
		// amd64:-`MOVQ\t[$]0, command-line-arguments..autotmp_3`
		select {
		case <-ch1:
		case <-ch2:
		default:
		}
	}

                  region_name='us-east-1')

r = s3.select_object_content(
    Bucket='mycsvbucket',
    Key='sampledata/TotalPopulation.csv.gz',
    ExpressionType='SQL',
    Expression="select * from s3object s where s.Location like '%United States%'",
    InputSerialization={
        'CSV': {
            "FileHeaderInfo": "USE",
        },
        'CompressionType': 'GZIP',
    },

	// optimization: zero-case select
	if ncas == 0 {
		return []ir.Node{mkcallstmt("block")}
	}

	// optimization: one-case select: single op.
	if ncas == 1 {
		cas := cases[0]
		ir.SetPos(cas)
		l := cas.Init()
		if cas.Comm != nil { // not default:
			n := cas.Comm
			l = append(l, ir.TakeInit(n)...)
			switch n.Op() {
			default:
				base.Fatalf("select %v", n.Op())

			case ir.OSEND:

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test simple select.

package main

var counter uint
var shift uint

func GetValue() uint {
	counter++
	return 1 << shift
}

func Send(a, b chan uint) int {
	var i int

LOOP:
	for {
		select {
		case a <- GetValue():
			i++
			a = nil
		case b <- GetValue():
			i++
			b = nil
		default:

package clause

// Select select attrs when querying, updating, creating
type Select struct {
	Distinct   bool
	Columns    []Column
	Expression Expression
}

func (s Select) Name() string {
	return "SELECT"
}

func (s Select) Build(builder Builder) {
	if len(s.Columns) > 0 {
		if s.Distinct {
			builder.WriteString("DISTINCT ")
		}

		for idx, column := range s.Columns {
			if idx > 0 {
				builder.WriteByte(',')