Release v2.2.0 · tenjin/click_house

Changed

#19 config.global_params now also
apply to select_* and other GET queries, as the README describes; before, only
execute and insert sent them. Settings there such as session_id or output formats
now affect selects too. Per-request query: params to Connection#get take precedence,
including over send_progress_in_http_headers
#6 Raise ClickHouse::DbException for
failed JSON and CSV queries on ClickHouse 23.5 and later, which raised
JSON::ParserError/Oj::ParseError because the server sends error text with an
application/json content type
#25 execute, insert and post
send config.database or the database: argument over a :database key in
global_params or params:, as selects already did. With database: nil, such as in
databases and create_database, they no longer send the :database from
global_params
#21 For a ResultSet built by hand,
to_a no longer raises KeyError for a row key that isn't in meta (it leaves the
value unchanged), and a row missing a column gets that column's cast of nil instead of
staying without it, e.g. TypeError for an integer column

#17 Fix ArgumentError on every JSON
response when using json gem 3.x. json 3 also rejects unknown or string keys in
config.json_load_options
#18 Fix NoMethodError for
CGI.parse in the logging middleware when no other gem loads the cgi library, e.g.
Faraday 2.14+ with ActiveSupport 8+, or Ruby 4.0

#24 config.parse_floats parses JSON
numbers as Float instead of BigDecimal and sends
output_format_json_quote_decimals=1, so Decimal columns arrive as strings and keep
their precision. Off by default. readonly=1 users need the setting in their profile
#13 config.adapter also accepts an
array of a Faraday adapter and its arguments, e.g. config.adapter = [:test, stubs]

#20 Cast query results faster by
resolving each column's casters once per result instead of for every value, with
identical results
#21 Skip casting columns whose JSON
values are already the cast result (String, FixedString, UUID, Enum, and Nullable,
LowCardinality or Array of those)
#16 Cast DateTime and DateTime64
values faster (about 2x for columns with a time zone) with identical results