2.7.6.2 Auto Query Time Estimation Data

Auto Query Time Estimation provides the following data:

• QUERY-ID

  The query ID.

• SESSION-ID

  The session ID that issued the query.

• QUERY-STRING

  The query string. EXPLAIN, if specified, is not displayed in the query string.

• EXEC-RUNTIME

  The query execution runtime in seconds. Runtime estimates are differentiated from actual runtimes by the appearance of the following text adjacent to the runtime: (est.). Actual runtimes are shown for successfully executed queries. Runtime estimates are shown for EXPLAIN queries, queries cancelled by Ctrl+C, and queries that fail with an out-of-memory error.

• COMMENT

  Comments associated with the query. Comments may include:

  • Explain: The query was run with EXPLAIN.

  • Operation was interrupted by the user: The query was successfully offloaded to HeatWave but was interrupted by a Ctrl+C key combination.

  • Out of memory error during query execution in RAPID: The query was successfully offloaded to HeatWave but failed due to an out-of-memory error.

• TOTAL-ESTIMATED and EXEC-RUNTIME

  The total number of queries with runtime estimates and total execution runtime (estimated).

• TOTAL-EXECUTED and EXEC-RUNTIME

  The total number of successfully executed queries and total execution runtime (actual).

• Retrieve detailed statistics using the query below

  The query retrieves detailed statistics from the heatwave_autopilot_report table. For an example of the detailed statistics, see Section 2.7.6.1, “Run Auto Query Time Estimation”.

Auto Query Time Estimation data is available in machine readable format for use in scripts. Auto Query Time Estimation data is also available in JSON format or SQL table format with queries to the heatwave_autopilot_report table. See Section 2.7.9, “Autopilot Report Table”.