pub async fn handle_alter_watermark(
handler_args: HandlerArgs,
table_name: ObjectName,
column_name: Ident,
expr: Expr,
with_ttl: bool,
) -> Result<RwPgResponse>pub async fn handle_alter_watermark(
handler_args: HandlerArgs,
table_name: ObjectName,
column_name: Ident,
expr: Expr,
with_ttl: bool,
) -> Result<RwPgResponse>