GT.M High end TP database engine / Discussion / Help: Reverse $Query

Reverse $Query

Forum: Help

Creator: Enzo Toscano

Created: 2012-12-23

Updated: 2012-12-29

Enzo Toscano - 2012-12-23

Hi,

it's possible to scan an array with $Query in reverse order?

Thanks in advance,
Enzo

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Bob Isch - 2012-12-24

Sorry Enzo - I don't think so. You could probably write a $$ReverseQuery(ref) function, but I suspect it was left out of the standard because not all implementations kept the back-links necessary to assure efficiency.
-bob

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K.S. Bhaskar - 2012-12-25

Enzo, GT.M does not implement a reverse $Query() function - it was not in the standard, and there never was enough demand to implement it.

Regards
- Bhaskar

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Enzo Toscano - 2012-12-25

Thank you, Rob and Bhaskar … I should to implement my own function to do this.

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