CREATE FLOW pending_without_defer
SINK TO pending_sink
AS SELECT val FROM pending_source;

Error: 1004(InvalidArguments), Invalid SQL, error: missing source tables for flow 'pending_without_defer'; use WITH (defer_on_missing_source = true) to create a pending flow

CREATE FLOW pending_with_defer
SINK TO pending_sink
WITH (defer_on_missing_source = true)
AS SELECT val FROM pending_source WHERE val > 10;

Affected Rows: 0

SHOW CREATE FLOW pending_with_defer;

+--------------------+--------------------------------------------------+
| Flow               | Create Flow                                      |
+--------------------+--------------------------------------------------+
| pending_with_defer | CREATE FLOW IF NOT EXISTS pending_with_defer     |
|                    | SINK TO public.pending_sink                      |
|                    | WITH (defer_on_missing_source = 'true')          |
|                    | AS SELECT val FROM pending_source WHERE val > 10 |
+--------------------+--------------------------------------------------+

SELECT
    flow_definition,
    source_table_ids,
    source_table_names,
    flownode_ids,
    options LIKE '%"defer_on_missing_source":"true"%' AS has_defer_option,
    options LIKE '%"flow_type":"batching"%' AS has_flow_type_option
FROM INFORMATION_SCHEMA.FLOWS
WHERE flow_name = 'pending_with_defer';

+--------------------------------------------------+------------------+--------------------+--------------+------------------+----------------------+
| flow_definition                                  | source_table_ids | source_table_names | flownode_ids | has_defer_option | has_flow_type_option |
+--------------------------------------------------+------------------+--------------------+--------------+------------------+----------------------+
| CREATE FLOW IF NOT EXISTS pending_with_defer     | []               |                    | {}           | true             | true                 |
| SINK TO public.pending_sink                      |                  |                    |              |                  |                      |
| WITH (defer_on_missing_source = 'true')          |                  |                    |              |                  |                      |
| AS SELECT val FROM pending_source WHERE val > 10 |                  |                    |              |                  |                      |
+--------------------------------------------------+------------------+--------------------+--------------+------------------+----------------------+

DROP FLOW pending_with_defer;

Affected Rows: 0

SELECT flow_name FROM INFORMATION_SCHEMA.FLOWS WHERE flow_name = 'pending_with_defer';

++
++