class Sequel::Mysql2::Dataset
Constants
- PreparedStatementMethods
- STREAMING_SUPPORTED
Public Instance Methods
fetch_rows(sql) { |h| ... }
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# File lib/sequel/adapters/mysql2.rb 240 def fetch_rows(sql) 241 execute(sql) do |r| 242 self.columns = r.fields.map!{|c| output_identifier(c.to_s)} 243 r.each(:cast_booleans=>convert_tinyint_to_bool?){|h| yield h} 244 end 245 self 246 end
paged_each(opts=OPTS) { || ... }
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Use streaming to implement paging if Mysql2
supports it and it hasn’t been disabled.
Calls superclass method
Sequel::Dataset#paged_each
# File lib/sequel/adapters/mysql2.rb 250 def paged_each(opts=OPTS, &block) 251 if STREAMING_SUPPORTED && opts[:stream] != false 252 unless defined?(yield) 253 return enum_for(:paged_each, opts) 254 end 255 stream.each(&block) 256 else 257 super 258 end 259 end
stream()
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Return a clone of the dataset that will stream rows when iterating over the result set, so it can handle large datasets that won’t fit in memory (Requires mysql 0.3.12+ to have an effect).
# File lib/sequel/adapters/mysql2.rb 264 def stream 265 clone(:stream=>true) 266 end