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fix: sql cast function when converting to float (#11817)
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@ -378,6 +378,31 @@ func TestJSONQueries(t *testing.T) {
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query: `SELECT date_diff(day, '2010-01-01T23:00:00Z', '2010-01-02T23:00:00Z') FROM S3Object LIMIT 1`,
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wantResult: `{"_1":1}`,
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},
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{
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name: "cast_from_int_to_float",
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query: `SELECT cast(1 as float) FROM S3Object LIMIT 1`,
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wantResult: `{"_1":1}`,
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},
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{
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name: "cast_from_float_to_float",
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query: `SELECT cast(1.0 as float) FROM S3Object LIMIT 1`,
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wantResult: `{"_1":1}`,
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},
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{
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name: "arithmetic_integer_operand",
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query: `SELECT 1 / 2 FROM S3Object LIMIT 1`,
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wantResult: `{"_1":0}`,
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},
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{
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name: "arithmetic_float_operand",
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query: `SELECT 1.0 / 2.0 * .3 FROM S3Object LIMIT 1`,
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wantResult: `{"_1":0.15}`,
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},
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{
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name: "arithmetic_integer_float_operand",
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query: `SELECT 3.0 / 2, 5 / 2.0 FROM S3Object LIMIT 1`,
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wantResult: `{"_1":1.5,"_2":2.5}`,
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},
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}
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defRequest := `<?xml version="1.0" encoding="UTF-8"?>
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@ -476,8 +476,13 @@ func (e *FuncExpr) evalNode(r Record) (res *Value, err error) {
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// aggregation or a row function - it always returns a value.
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func (e *LitValue) evalNode(_ Record) (res *Value, err error) {
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switch {
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case e.Number != nil:
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return floatToValue(*e.Number), nil
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case e.Int != nil:
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if *e.Int < math.MaxInt64 && *e.Int > math.MinInt64 {
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return FromInt(int64(*e.Int)), nil
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}
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return FromFloat(*e.Int), nil
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case e.Float != nil:
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return FromFloat(*e.Float), nil
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case e.String != nil:
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return FromString(string(*e.String)), nil
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case e.Boolean != nil:
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@ -492,7 +492,7 @@ func floatCast(v *Value) (float64, error) {
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switch x := v.value.(type) {
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case float64:
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return x, nil
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case int:
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case int64:
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return float64(x), nil
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case string:
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f, err := strconv.ParseFloat(strings.TrimSpace(x), 64)
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@ -106,10 +106,10 @@ type TableExpression struct {
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// JSONPathElement represents a keypath component
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type JSONPathElement struct {
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Key *ObjectKey `parser:" @@"` // ['name'] and .name forms
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Index *int `parser:"| \"[\" @Number \"]\""` // [3] form
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ObjectWildcard bool `parser:"| @\".*\""` // .* form
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ArrayWildcard bool `parser:"| @\"[*]\""` // [*] form
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Key *ObjectKey `parser:" @@"` // ['name'] and .name forms
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Index *int `parser:"| \"[\" @Int \"]\""` // [3] form
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ObjectWildcard bool `parser:"| @\".*\""` // .* form
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ArrayWildcard bool `parser:"| @\"[*]\""` // [*] form
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}
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// JSONPath represents a keypath.
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@ -333,7 +333,8 @@ type DateDiffFunc struct {
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// LitValue represents a literal value parsed from the sql
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type LitValue struct {
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Number *float64 `parser:"( @Number"`
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Float *float64 `parser:"( @Float"`
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Int *float64 `parser:" | @Int"` // To avoid value out of range, use float64 instead
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String *LiteralString `parser:" | @LitString"`
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Boolean *Boolean `parser:" | @(\"TRUE\" | \"FALSE\")"`
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Null bool `parser:" | @\"NULL\")"`
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@ -351,7 +352,8 @@ var (
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`|(?P<Keyword>(?i)\b(?:SELECT|FROM|TOP|DISTINCT|ALL|WHERE|GROUP|BY|HAVING|UNION|MINUS|EXCEPT|INTERSECT|ORDER|LIMIT|OFFSET|TRUE|FALSE|NULL|IS|NOT|ANY|SOME|BETWEEN|AND|OR|LIKE|ESCAPE|AS|IN|BOOL|INT|INTEGER|STRING|FLOAT|DECIMAL|NUMERIC|TIMESTAMP|AVG|COUNT|MAX|MIN|SUM|COALESCE|NULLIF|CAST|DATE_ADD|DATE_DIFF|EXTRACT|TO_STRING|TO_TIMESTAMP|UTCNOW|CHAR_LENGTH|CHARACTER_LENGTH|LOWER|SUBSTRING|TRIM|UPPER|LEADING|TRAILING|BOTH|FOR)\b)` +
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`|(?P<Ident>[a-zA-Z_][a-zA-Z0-9_]*)` +
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`|(?P<QuotIdent>"([^"]*("")?)*")` +
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`|(?P<Number>\d*\.?\d+([eE][-+]?\d+)?)` +
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`|(?P<Float>\d*\.\d+([eE][-+]?\d+)?)` +
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`|(?P<Int>\d+)` +
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`|(?P<LitString>'([^']*('')?)*')` +
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`|(?P<Operators><>|!=|<=|>=|\.\*|\[\*\]|[-+*/%,.()=<>\[\]])`,
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))
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@ -127,10 +127,10 @@ func parseLimit(v *LitValue) (int64, error) {
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switch {
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case v == nil:
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return -1, nil
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case v.Number == nil:
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case v.Int == nil:
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return -1, errBadLimitSpecified
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default:
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r := int64(*v.Number)
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r := int64(*v.Int)
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if r < 0 {
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return -1, errBadLimitSpecified
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}
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@ -306,15 +306,6 @@ func (v Value) CSVString() string {
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}
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}
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// floatToValue converts a float into int representation if needed.
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func floatToValue(f float64) *Value {
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intPart, fracPart := math.Modf(f)
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if fracPart == 0 && intPart < math.MaxInt64 && intPart > math.MinInt64 {
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return FromInt(int64(intPart))
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}
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return FromFloat(f)
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}
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// negate negates a numeric value
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func (v *Value) negate() {
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switch x := v.value.(type) {
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