Module: UmbrellioUtils::ClickHouse

Extended by:: ClickHouse

Included in:: ClickHouse

Defined in:: lib/umbrellio_utils/click_house.rb,
lib/umbrellio_utils/click_house/backends.rb,
lib/umbrellio_utils/click_house/backends/base.rb,
lib/umbrellio_utils/click_house/backends/legacy.rb,
lib/umbrellio_utils/click_house/backends/native.rb

Overview

Polymorphic ClickHouse facade. The active backend is picked up from ‘UmbrellioUtils.config.clickhouse_backend` — `:legacy` routes through the `click_house` gem (HTTP), `:native` through the `clickhouse-native` gem (TCP). Both backends expose the same public surface so consumer code (including UmbrellioUtils::Migrations) is backend-agnostic.

Defined Under Namespace

Modules: Backends

Constant Summary collapse

VALID_BACKENDS =

%i[legacy native].freeze

DELEGATED =

%i[
  execute query query_value query_each count insert
  from describe_table server_version tables
  create_database drop_database db_name config
  truncate_table! drop_table! optimize_table! on_cluster
  parse_value pg_table_connection populate_temp_table! with_temp_table
].freeze

Instance Method Summary collapse

#backend ⇒ Object
#reset_backend! ⇒ Object

Testing hook — clears the memoized backend so specs can flip ‘clickhouse_backend` mid-run.

Instance Method Details

#backend ⇒ `Object`



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# File 'lib/umbrellio_utils/click_house.rb', line 30

def backend
  @backend ||= backend_for(UmbrellioUtils.config.clickhouse_backend)
end

#reset_backend! ⇒ `Object`

Testing hook — clears the memoized backend so specs can flip ‘clickhouse_backend` mid-run. Not part of the public API.



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# File 'lib/umbrellio_utils/click_house.rb', line 36

def reset_backend!
  @backend = nil
end