support stored system procedures

[nktks]

From this release ¹, Stored system procedures is supported.

As I tested at cloud console ², it runs as query.
So I changed statement.go to parse CALL to SelectStatement and it works.
Let me know if we need to parse CALL statement to another struct.

Test Result (Click me)

• run heavy query

spanner> SELECT * FROM Users AS a CROSS JOIN Users AS b;

• select query_id and run stored system procedures

spanner> SELECT * FROM spanner_sys.oldest_active_queries;
+-----------------------------+----------------------+-------------------------------------------------+----------------+----------------------------------------------------------------+---------------------+
| START_TIME                  | TEXT_FINGERPRINT     | TEXT                                            | TEXT_TRUNCATED | SESSION_ID                                                     | QUERY_ID            |
+-----------------------------+----------------------+-------------------------------------------------+----------------+----------------------------------------------------------------+---------------------+
| 2024-07-04T02:56:49.130403Z | -2292417946475336118 | SELECT * FROM Users AS a CROSS JOIN Users AS b  | false          | AJ4XPT3hwhcYscZWWnmr-bL5ZhBHztPGqTytWk7dXF29MfFcCTHdk7c5G6LAfQ | 3962375048429130423 |
| 2024-07-04T02:56:49.803515Z | 2871458697993773986  | SELECT * FROM spanner_sys.oldest_active_queries | false          | AJ4XPT2FaN-3h6jc8Xo4knSl4ak8PRrVcbK3SUe5mf_M3kRM--w_PjKh4BLiAg | 951441015441622781  |
+-----------------------------+----------------------+-------------------------------------------------+----------------+----------------------------------------------------------------+---------------------+
2 rows in set (11.44 msecs)
timestamp:            2024-07-04T11:56:49.803681+09:00
cpu time:             0.61 msecs
rows scanned:         0 rows
deleted rows scanned: 0 rows
optimizer version:    6
optimizer statistics: auto_20240703_12_32_08UTC

spanner> CALL cancel_query("3962375048429130423");
Empty set (19.1 msecs)
timestamp:            2024-07-04T11:56:56.343631+09:00
cpu time:             1.81 msecs
rows scanned:         0 rows
deleted rows scanned: 0 rows
optimizer version:    6
optimizer statistics: auto_20240703_12_32_08UTC

spanner>

• query is canceled

spanner> SELECT * FROM Users AS a CROSS JOIN Users AS b;
ERROR: spanner: code = "Canceled", desc = "The operation was cancelled."
spanner>

• explain

spanner> EXPLAIN CALL cancel_query("3962375048429130423");
+----+----------------------+
| ID | Query_Execution_Plan |
+----+----------------------+
|  0 | Serialize Result     |
|  1 | +- TVF               |
|  2 |    +- Unit Relation  |
+----+----------------------+
1 rows in set (0.10 sec)

spanner> EXPLAIN ANALYZE CALL cancel_query("3962375048429130423");
+----+----------------------+---------------+------------+---------------+
| ID | Query_Execution_Plan | Rows_Returned | Executions | Total_Latency |
+----+----------------------+---------------+------------+---------------+
|  0 | Serialize Result     | 0             | 1          | 1.01 secs     |
|  1 | +- TVF               | 0             | 1          | 1.01 secs     |
|  2 |    +- Unit Relation  |               |            |               |
+----+----------------------+---------------+------------+---------------+
Empty set (1.01 secs)
timestamp:            2024-07-04T11:58:09.291468+09:00
cpu time:             1.28 msecs
rows scanned:         0 rows
deleted rows scanned: 0 rows
optimizer version:    6
optimizer statistics: auto_20240703_12_32_08UTC

spanner>

Footnotes

1. https://cloud.google.com/spanner/docs/release-notes#July_03_2024 ↩

2. ↩

[yfuruyama]

LGTM. Thanks for supporting this!

[yfuruyama]

This is tagged in https://github.com/cloudspannerecosystem/spanner-cli/releases/tag/v0.10.2

[nktks]

Thank you so much!