fn alter_source_timestamp_interval(
scx: &StatementContext<'_>,
if_exists: bool,
source_name: UnresolvedItemName,
value: Option<WithOptionValue<Aug>>,
) -> Result<Plan, PlanError>fn alter_source_timestamp_interval(
scx: &StatementContext<'_>,
if_exists: bool,
source_name: UnresolvedItemName,
value: Option<WithOptionValue<Aug>>,
) -> Result<Plan, PlanError>