Module: ClickHouse::Extend::ConnectionExplaining

Included in:: Connection

Defined in:: lib/click_house/extend/connection_explaining.rb

Constant Summary collapse

EXPLAIN =

'EXPLAIN'

EXPLAIN_RE =

/\A(\s*#{EXPLAIN})/io.freeze

Instance Method Summary collapse

#explain(sql, io: $stdout) ⇒ Object

Instance Method Details

#explain(sql, io: $stdout) ⇒ `Object`

# File 'lib/click_house/extend/connection_explaining.rb', line 9

def explain(sql, io: $stdout)
  res = execute("#{EXPLAIN} #{sql.gsub(EXPLAIN_RE, '')}")
  io << res.body
end