2.5.4 Unload All Tables

HeatWave MySQL can unload all tables.

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mysql> CALL sys.heatwave_unload_all ([options]);

options: {
     JSON_OBJECT("key","value"[,"key","value"] ...)
          "key","value": {
          ["only_user_loaded_tables",{true|false}]
          ["output",{"normal"|"silent"}]
          }
}

Use key-value pairs in JSON format to specify options. HeatWave uses the default setting if there is no defined option. Use NULL to specify no arguments.

The options include:

• only_user_loaded_tables: Enabled by default. The procedure only unloads user tables. If false, the procedure unloads user and system tables.

• output: Defines where to send the output. Permitted values are:

  • normal: The default. Produces summarized output and sends it to stdout and to the heatwave_autopilot_report table. See Section 2.7.9, “Autopilot Report Table”.

  • silent: Sends output to the heatwave_autopilot_report table only. See Section 2.7.9, “Autopilot Report Table”. The silent output type is useful if human-readable output is not required; when the output is consumed by a script, for example.

Syntax Examples

• Unload all tables with default options:

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  mysql> CALL sys.heatwave_unload_all (NULL);

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  mysql> CALL sys.heatwave_unload_all (JSON_OBJECT());

• Unload all user and system tables:

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  mysql> CALL sys.heatwave_unload_all (JSON_OBJECT("only_user_loaded_tables",false));

• Unload user tables with the silent option:

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  mysql> CALL sys.heatwave_unload_all (JSON_OBJECT("output","silent"));

• Unload all user and system tables with the silent option:

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  mysql> CALL sys.heatwave_unload_all (JSON_OBJECT("only_user_loaded_tables",false,"output","silent"));