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Add automatic type cast for integer literals

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In parameterized statements integer literals, like Int(num), are replaced with a placeholders. For some expressions,
postgres interpreter will not have enough information to deduce the type. If this is the case postgres returns an error.
Int8, Int16, Int32.... functions now will add automatic type cast over a placeholder, so type deduction is always possible.
This commit is contained in:
go-jet 2021-12-26 17:15:43 +01:00
parent 47545ce571
commit 01305a138f
10 changed files with 146 additions and 106 deletions
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18
postgres/literal_test.go
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@ -7,7 +7,7 @@ import (
)
func TestBool(t *testing.T) {
assertSerialize(t, Bool(false), `$1`, false)
assertSerialize(t, Bool(false), `$1::boolean`, false)
}
func TestInt(t *testing.T) {
@ -16,42 +16,42 @@ func TestInt(t *testing.T) {
func TestInt8(t *testing.T) {
val := int8(math.MinInt8)
assertSerialize(t, Int8(val), `$1`, val)
assertSerialize(t, Int8(val), `$1::smallint`, val)
}
func TestInt16(t *testing.T) {
val := int16(math.MinInt16)
assertSerialize(t, Int16(val), `$1`, val)
assertSerialize(t, Int16(val), `$1::smallint`, val)
}
func TestInt32(t *testing.T) {
val := int32(math.MinInt32)
assertSerialize(t, Int32(val), `$1`, val)
assertSerialize(t, Int32(val), `$1::integer`, val)
}
func TestInt64(t *testing.T) {
val := int64(math.MinInt64)
assertSerialize(t, Int64(val), `$1`, val)
assertSerialize(t, Int64(val), `$1::bigint`, val)
}
func TestUint8(t *testing.T) {
val := uint8(math.MaxUint8)
assertSerialize(t, Uint8(val), `$1`, val)
assertSerialize(t, Uint8(val), `$1::smallint`, val)
}
func TestUint16(t *testing.T) {
val := uint16(math.MaxUint16)
assertSerialize(t, Uint16(val), `$1`, val)
assertSerialize(t, Uint16(val), `$1::integer`, val)
}
func TestUint32(t *testing.T) {
val := uint32(math.MaxUint32)
assertSerialize(t, Uint32(val), `$1`, val)
assertSerialize(t, Uint32(val), `$1::bigint`, val)
}
func TestUint64(t *testing.T) {
val := uint64(math.MaxUint64)
assertSerialize(t, Uint64(val), `$1`, val)
assertSerialize(t, Uint64(val), `$1::bigint`, val)
}
func TestFloat(t *testing.T) {