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select: Fix integer conversion overflow (#10437) 

Do not convert float value to integer if it will over/underflow.

The comparison cannot be `<=` since rounding may overflow it.

Fixes #10436
This commit is contained in:
Klaus Post 2020-09-08 15:56:11 -07:00 committed by GitHub
parent 6a0372be6c
commit 0987069e37
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 3 deletions
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23
pkg/s3select/select_test.go
View File

@ -18,6 +18,7 @@ package s3select
import (
"bytes"
"encoding/xml"
"fmt"
"io"
"io/ioutil"
@ -93,6 +94,20 @@ func TestJSONQueries(t *testing.T) {
query: `SELECT * from s3object s WHERE 'bar' in s.synonyms[*]`,
wantResult: `{"id":0,"title":"Test Record","desc":"Some text","synonyms":["foo","bar","whatever"]}`,
},
{
name: "bignum-1",
query: `SELECT id from s3object s WHERE s.id <= 9223372036854775807`,
wantResult: `{"id":0}
{"id":1}
{"id":2}
{"id":3}`},
{
name: "bignum-2",
query: `SELECT id from s3object s WHERE s.id >= -9223372036854775808`,
wantResult: `{"id":0}
{"id":1}
{"id":2}
{"id":3}`},
{
name: "donatello-3",
query: `SELECT * from s3object s WHERE 'value' IN s.synonyms[*]`,
@ -355,7 +370,9 @@ func TestJSONQueries(t *testing.T) {
testReq := testCase.requestXML
if len(testReq) == 0 {
testReq = []byte(fmt.Sprintf(defRequest, testCase.query))
var escaped bytes.Buffer
xml.EscapeText(&escaped, []byte(testCase.query))
testReq = []byte(fmt.Sprintf(defRequest, escaped.String()))
}
s3Select, err := NewS3Select(bytes.NewReader(testReq))
if err != nil {
@ -401,7 +418,9 @@ func TestJSONQueries(t *testing.T) {
}
testReq := testCase.requestXML
if len(testReq) == 0 {
testReq = []byte(fmt.Sprintf(defRequest, testCase.query))
var escaped bytes.Buffer
xml.EscapeText(&escaped, []byte(testCase.query))
testReq = []byte(fmt.Sprintf(defRequest, escaped.String()))
}
s3Select, err := NewS3Select(bytes.NewReader(testReq))
if err != nil {

2
pkg/s3select/sql/value.go
View File

@ -309,7 +309,7 @@ func (v Value) CSVString() string {
// floatToValue converts a float into int representation if needed.
func floatToValue(f float64) *Value {
intPart, fracPart := math.Modf(f)
if fracPart == 0 {
if fracPart == 0 && intPart < math.MaxInt64 && intPart > math.MinInt64 {
return FromInt(int64(intPart))
}
return FromFloat(f)