func (ct ColumnType) Nullable() (nullable bool, ok bool) {
	if ct.NullableValue.Valid {
		return ct.NullableValue.Bool, true
	}
	return ct.SQLColumnType.Nullable()
}

// Unique reports whether the column may be unique.
func (ct ColumnType) Unique() (unique bool, ok bool) {
	return ct.UniqueValue.Bool, ct.UniqueValue.Valid
}

// ScanType returns a Go type suitable for scanning into using Rows.Scan.

							return
						}
						subName = composite
					}
					name = field.Schema.namer.IndexName(
						field.Schema.Table, subName)
				}

				if (k == "UNIQUEINDEX") || settings["UNIQUE"] != "" {
					settings["CLASS"] = "UNIQUE"
				}

				priority, err := strconv.Atoi(settings["PRIORITY"])
				if err != nil {
					priority = 10
				}

				indexes = append(indexes, Index{
					Name:    name,

	} ShareCtr;

	[op(0x0f)]
	int ShareEnumAll([in,string,unique] wchar_t *servername,
			[in,out] int *level,
			[in,out,switch_is(*level)] ShareCtr *info,
			[in] unsigned long prefmaxlen,
			[out] unsigned long *totalentries,
			[in,out] unsigned long *resume_handle);

	[op(0x10)]
	int ShareGetInfo([in,string,unique] wchar_t *servername,
			[in,string] wchar_t *sharename,
			[in] int level,

		if field == nil {
			t.Fatalf("%v: failed to find column %q", utils.FileWithLineNum(), fieldName)
		}
		if field.Unique != unique {
			t.Fatalf("%v: %q column %q unique should be %v but got %v", utils.FileWithLineNum(), stmt.Schema.Table, fieldName, unique, field.Unique)
		}
		if field.UniqueIndex != uniqueIndex {

		if err != nil {
			t.Fatalf("failed to parse user unique, got error %v", err)
		}

		constraints := user.ParseUniqueConstraints()
		if len(constraints) != 1 {
			t.Fatalf("failed to find unique constraint, got %v", constraints)
		}

		for key := range constraints {
			if len(key) != 63 {
				t.Errorf("failed to find unique constraint, got %v", constraints)
			}
		}
	})

	} SamrAcctFlags;

	[op(0x01)]
	int SamrCloseHandle([in] policy_handle *handle);

	[op(0x39)]
	int SamrConnect2([in,string,unique] wchar_t *system_name,
			[in] uint32_t access_mask,
			[out] policy_handle *handle);

	[op(0x3e)]
	int SamrConnect4([in,string,unique] wchar_t *system_name,
			[in] uint32_t unknown,
			[in] uint32_t access_mask,
			[out] policy_handle *handle);

	[op(0x07)]

			Name:  "uni_user_uniques_name1",
			Field: &schema.Field{Name: "Name1", Unique: true},
		},
	}
	for k, result := range results {
		v, ok := constraints[k]
		if !ok {
			t.Errorf("Failed to found unique constraint %v from parsed constraints %+v", k, constraints)
		}
		tests.AssertObjEqual(t, result, v, "Name")
		tests.AssertObjEqual(t, result.Field, v.Field, "Name", "Unique", "UniqueIndex")
	}

	} ShareCtr;

	[op(0x0f)]
	int ShareEnumAll([in,string,unique] wchar_t *servername,
			[in,out] int *level,
			[in,out,switch_is(*level)] ShareCtr *info,
			[in] unsigned long prefmaxlen,
			[out] unsigned long *totalentries,
			[in,out] unsigned long *resume_handle);

	[op(0x10)]
	int ShareGetInfo([in,string,unique] wchar_t *servername,
			[in,string] wchar_t *sharename,
			[in] int level,

			[in] uint16_t level,
			[out,switch_is(level),unique] LsarPolicyInfo *info);

	[op(0x0f)]
	int LsarLookupSids([in] policy_handle *handle,
			[in] LsarSidArray *sids,
			[out,unique] LsarRefDomainList *domains,
			[in,out] LsarTransNameArray *names,
			[in] uint16_t level,
			[in,out] uint32_t *count);

	[op(0x2c)]
	int LsarOpenPolicy2([in,string,unique] wchar_t *system_name,

			[in] uint16_t level,
			[out,switch_is(level),unique] LsarPolicyInfo *info);

	[op(0x0f)]
	int LsarLookupSids([in] policy_handle *handle,
			[in] LsarSidArray *sids,
			[out,unique] LsarRefDomainList *domains,
			[in,out] LsarTransNameArray *names,
			[in] uint16_t level,
			[in,out] uint32_t *count);

	[op(0x2c)]
	int LsarOpenPolicy2([in,string,unique] wchar_t *system_name,