Files
zeekay 286f257aae De-brand the client: clickhouse-cpp -> datastore-cpp
Pure rename applied on top of upstream tag v2.6.2 (8d2415d6), not HEAD.
The fork was cut at 737145d = v2.6.2-57, which still declared version 2.6.2
in version.h; renaming there would have shipped 57 unreleased commits wearing
a 2.6.2 label. Reset to the tag first so this commit changes names only.

  clickhouse/            -> datastore/            (public include root)
  namespace clickhouse   -> namespace datastore
  CLICKHOUSE_CPP_VERSION -> DATASTORE_CPP_VERSION
  clickhouse-cpp-lib/-ut -> datastore-cpp-lib/-ut (CMake, Bazel)
  CH_MAP_BOOL_TO_UINT8   -> DS_MAP_BOOL_TO_UINT8
  CLICKHOUSE_*           -> DATASTORE_*           (test env vars)
  doc links              -> docs.hanzo.ai/datastore

This client speaks the NATIVE binary protocol only - there is no HTTP path
and no X-ClickHouse-* header anywhere in it, so the header rename that the
HTTP clients required does not apply and nothing here was broken.

The one string that reaches the wire is CLIENT_NAME, sent by both SendHello
and SendQuery's ClientInfo from a single macro, and it lands in
system.query_log.client_name. Both sites still read the one macro, so they
stay consistent and the server's Hello/Query consistency check is satisfied.
Old rows keep the old name; that is a reporting discontinuity, not a
migration, since nothing keys on it.

CI is repointed at our own server: ghcr.io/hanzoai/datastore:26.2.3.2, the
image production runs. Its entrypoint honours DATASTORE_SKIP_USER_SETUP, not
the CLICKHOUSE_ spelling the compose file used, and its config lives in
/etc/hanzo-datastore-server. ci/docker-compose/config.xml is now layered in
as a config.d drop-in so the image keeps its own white-labelling. That file
and users.xml deliberately keep a <clickhouse> root: it must match the roots
of the drop-ins the image ships, and a mismatch fails silently - the server
logs "Merging bypassed" and starts with every drop-in discarded.

The remote-TLS suites used to default to the third-party host
play.clickhouse.com. They now read DATASTORE_SECURE*_HOST and skip when it is
unset rather than point at a host we do not run.

Dropped as upstream infrastructure with no meaning here: AI_POLICY.md
(upstream's policy about their codebase), .travis.yml (dead CI referencing a
third-party apt repo), cross-repo-bug-relay.yml (relays our issues into an
upstream triage repo). LICENSE keeps its copyright notice, as Apache-2.0
requires.

Verified: cmake configure + 115-target build clean; the full suite is green
against ghcr.io/hanzoai/datastore:26.2.3.2 (894 passed, 0 failed); the
pristine v2.6.2 build run against that same server passes the identical set,
and both logged the same 3914 queries under their respective client names.
2026-07-26 11:44:39 -07:00

103 lines
2.6 KiB
C++

#include "json.h"
#include "../base/wire_format.h"
namespace datastore {
enum class JSONSerializationVersion : uint64_t {
// String is the only currently supported serialization of JSON.
// it should be enabled with output_format_native_write_json_as_string=1
String = 1,
};
ColumnJSON::ColumnJSON()
: Column(Type::CreateJSON())
, data_(std::make_shared<ColumnString>())
{}
ColumnJSON::ColumnJSON(std::vector<std::string> data)
: Column(Type::CreateJSON())
, data_(std::make_shared<ColumnString>(std::move(data)))
{}
void ColumnJSON::Append(std::string_view str) {
data_->Append(str);
}
void ColumnJSON::Append(const char* str) {
data_->Append(str);
}
void ColumnJSON::Append(std::string&& str) {
data_->Append(std::move(str));
}
std::string_view ColumnJSON::At(size_t n) const {
return data_->At(n);
}
void ColumnJSON::Append(ColumnRef column) {
if (auto col = column->As<ColumnJSON>()) {
data_->Append(col->data_);
}
}
void ColumnJSON::Reserve(size_t new_cap) {
data_->Reserve(new_cap);
}
bool ColumnJSON::LoadPrefix(InputStream* input, size_t) {
uint64_t v;
if (!WireFormat::ReadFixed(*input, &v)) {
return false;
}
if (v != static_cast<uint64_t>(JSONSerializationVersion::String)) {
// Hard stop: the library can only parse JSON when `output_format_native_write_json_as_string` is enabled.
// Further processing is meaningless after this error and the user must be notified immediately.
throw ProtocolError("Unsupported JSON serialization version. "
"Make sure output_format_native_write_json_as_string=1 is set.");
}
return true;
}
bool ColumnJSON::LoadBody(InputStream* input, size_t rows) {
return data_->LoadBody(input, rows);
}
void ColumnJSON::SavePrefix(OutputStream* output) {
WireFormat::WriteFixed(*output, static_cast<uint64_t>(JSONSerializationVersion::String));
}
void ColumnJSON::SaveBody(OutputStream* output) {
data_->SaveBody(output);
}
void ColumnJSON::Clear() {
data_->Clear();
}
size_t ColumnJSON::Size() const {
return data_->Size();
}
ColumnRef ColumnJSON::Slice(size_t begin, size_t len) const {
auto ret = std::make_shared<ColumnJSON>();
auto sliced_data = data_->Slice(begin, len)->As<ColumnString>();
ret->data_->Swap(*sliced_data);
return ret;
}
ColumnRef ColumnJSON::CloneEmpty() const
{
return std::make_shared<ColumnJSON>();
}
void ColumnJSON::Swap(Column& other) {
auto & col = dynamic_cast<ColumnJSON &>(other);
data_.swap(col.data_);
}
ItemView ColumnJSON::GetItem(size_t index) const {
return ItemView{Type::JSON, data_->GetItem(index)};
}
}