Here's the results. Looks like it's leaking even with UDR. I used Firebird-4.0.0.2496-1-x64-pdb. Only initialized security database. Nothing else.
MemoryDemo plugin (https://snipboard.io/AmZ5I7.jpg): Function `isLeapYear` from `udr_compat` (https://snipboard.io/yIDAMZ.jpg): Either the [1] or [2] was executed for the test. [1]: while ($true) { 'select test() from rdb$database where 0=1;' | & $isql -u sysdba -p masterkey 'localhost:memory.fdb'; } [2]: while ($true) { 'select isLeapYear(current_timestamp) from rdb$database where 0=1;' | & $isql -u sysdba -p masterkey 'localhost:memory.fdb'; } In case somebody wants to try it, here's https://www.uschovna.cz/zasilka/MTSA3D3G4BPT3BYY-I8V/ the whole setup. -- Mgr. Jiří Činčura https://www.tabsoverspaces.com/
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