[elixir] feat: Add get_database_info admin call#586
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This commit adds the `get_database_info` admin call on `Fluss.Admin`, returning a `Fluss.DatabaseInfo` struct that embeds a nested `Fluss.DatabaseDescriptor` (comment + custom properties). The output-marshaling pattern follows the wrapper convention established by `get_server_nodes` in apache#583: bindings-local `Nif*` structs with `from_core` builders, derived `NifStruct` for cross-FFI encoding. Part of apache#466.
fresh-borzoni
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Jun 3, 2026
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@nicolazar Thank you, LGTM 👍
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Purpose
Linked issue: part of #466
closes #596
This PR adds the
get_database_infoadmin call onFluss.Admin, returning aFluss.DatabaseInfostruct that embeds a nestedFluss.DatabaseDescriptor(comment + custom properties).The output-marshaling pattern follows the wrapper convention established by
get_server_nodesin #583: bindings-localNif*structs withfrom_corebuilders, derivedNifStructfor cross-FFI encoding.Tests
Integration tests added for positive case (create db → assert struct shape), as well as for negative case (
{:error, %Fluss.Error{}}for non-existent db).