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optimize ALIAS table automatically

In GUI->Tools->Alias builder you can schedule Aliases to be uploaded from a query.

Each time the process runs the aliases are replaced by the new versions from the query. The amount of data in the TURBINE.ALIAS table does not increase but the index of the table does increase.

Here is an example of a top tables where customer often imports aliases from query.

Table Size (M) | I/D % | Est. Rows | Name
-------------- | ----- | --------- | ----------
72896 | 30 | 144264208 | GDM_CONSTRUCT_TEXT
14750 | 31 | 1450189 | GDM_ERROR
4758 | 815 | 2254481 | GDM_CONSTRUCT_INSTANCE
2753 | 11 | 3918627 | REPORT_RESULT_DATA_ROW
1626 | 105 | 2678286 | GDM_EXCEPTION
748 | 173 | 1092571 | GDM_SESSION
636 | 90082 | 15875 | ALIAS

The index % on ALIAS is huge.

This means the ibdata1 or .ibd database file can become much larger than the data that is in the table. It contributes to DB becoming 100% full.

Optimize on the table resets the index size.

So the RFE is:

optimize table on TURBINE.ALIAS to be run automatically each time update to ALIAS is done via query.

  • Guest
  • Jan 26 2021
  • Not under consideration

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