GTT and RDB$PAGES
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Adriano dos Santos Fernandes
May 23, 2025, 7:14:42 AMMay 23
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Hi!
Are GTT pages stored in RDB$PAGES ever used for anything (what)?
Adriano
Are GTT pages stored in RDB$PAGES ever used for anything (what)?
Adriano
Vlad Khorsun
May 23, 2025, 11:15:48 AMMay 23
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23.05.2025 14:14, Adriano dos Santos Fernandes:
PP is unused, but its presence allows to not indroduce branches of code and avoids additional
checks, IIRC. IRT stores important metadata related to indexes.
Regards,
Vlad
> Hi!
>
> Are GTT pages stored in RDB$PAGES ever used for anything (what)?
GTT keep two pages in main page space - one pointer page (PP) and index root page (IRT).
>
> Are GTT pages stored in RDB$PAGES ever used for anything (what)?
PP is unused, but its presence allows to not indroduce branches of code and avoids additional
checks, IIRC. IRT stores important metadata related to indexes.
Regards,
Vlad
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