tiny.sql.CatalogReader

1pub const Reader = struct {2    snapshot: file.Snapshot,3    meta_page: u32,4    root_page: u32,5    schema: table.Reader,67    pub fn open(snapshot: file.Snapshot, options: Options) Error!Reader {8        try validateOptions(options);9        return .{10            .snapshot = snapshot,11            .meta_page = options.meta_page,12            .root_page = options.root_page,13            .schema = try table.Reader.open(snapshot, .{14                .tree = catalogTreeOptions(options),15            }),16        };17    }1819    pub fn schemaState(self: *const Reader, allocator: Allocator) Error!Schema {20        return try readSchemaState(&self.schema, allocator);21    }2223    pub fn openRelation(24        self: *const Reader,25        allocator: Allocator,26        name: []const u8,27    ) Error!ReadRelationHandle {28        return try openRelationFrom(29            ReadRelationHandle,30            space_mod.Reader,31            relation_mod.Reader,32            self.snapshot,33            &self.schema,34            self.meta_page,35            self.root_page,36            allocator,37            name,38        );39    }4041    pub fn relationNames(self: *const Reader, allocator: Allocator) Error!RelationNames {42        return try readRelationNames(&self.schema, allocator);43    }4445    pub fn relationStats(46        self: *const Reader,47        allocator: Allocator,48        name: []const u8,49    ) Error!?RelationStats {50        return try readRelationStats(&self.schema, allocator, name);51    }5253    /// Returns what `schemaState`, `openRelation` and `relationStats` return54    /// for `name`, read in one catalog pass.55    pub fn readRelation(56        self: *const Reader,57        allocator: Allocator,58        name: []const u8,59    ) Error!ReadRelationState {60        return try readRelationFrom(61            ReadRelationHandle,62            space_mod.Reader,63            relation_mod.Reader,64            self.snapshot,65            &self.schema,66            self.meta_page,67            self.root_page,68            allocator,69            name,70        );71    }72};

1pub const CatalogReader = catalog.Reader;