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index: secondary index core — entries, search, planner, _id fast path

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Adds src/index.zig with the full secondary-index machinery: entry
generation mirroring field_matches (array value + elements), BSON-order
sorted entries with binary search, compound prefix and range lookups,
unique/sparse options, the query planner (longest equality/$in run +
optional range, $in cartesian cap, sparse/null bail), and the _id_ fast
path guarded against serialization-ambiguous values (numbers, strings,
symbols, codes, opaque payloads).

query.collect_values is now pub so entry generation can mirror it exactly.
storage.zig gains record_type_index_create/drop; lib.zig exports index.
This commit is contained in:
Alexey Shakhmatov
2026-08-02 12:21:22 +03:00
parent 662df9b121
commit a38ddc2f50
10 changed files with 1824 additions and 782 deletions
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19
src/server.zig
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@@ -120,17 +120,14 @@ fn handle_connection_inner(io: std.Io, stream: std.Io.net.Stream, server: *Serve
};
out_buf.clearRetainingCapacity();
if (msg.op_code == wire.op_code_query) {
wire.write_reply_query(server.gpa, reply_request_id, msg.request_id, reply.pairs.items, &out_buf) catch |err| {
std.debug.print("mongo-light: reply build error on conn {d}: {s}\n", .{ connection_id, @errorName(err) });
return;
};
} else {
reply.build(server.gpa, reply_request_id, msg.request_id, &out_buf) catch |err| {
std.debug.print("mongo-light: reply build error on conn {d}: {s}\n", .{ connection_id, @errorName(err) });
return;
};
}
const built = if (msg.op_code == wire.op_code_query)
wire.write_reply_query(server.gpa, reply_request_id, msg.request_id, reply.pairs.items, &out_buf)
else
reply.build(server.gpa, reply_request_id, msg.request_id, &out_buf);
built catch |err| {
std.debug.print("mongo-light: reply build error on conn {d}: {s}\n", .{ connection_id, @errorName(err) });
return;
};
reply_request_id +%= 1;
writer.interface.writeAll(out_buf.items) catch |err| {
std.debug.print("mongo-light: write error on conn {d}: {s}\n", .{ connection_id, @errorName(err) });