A regular expression for the types of queries to cache. Any queries not matching this regular expression are not cached.
The StatementCache instance for this connection. Note that each connection has a separate StatementCache, because prepared statements are connection-specific.
Set the statement_cache for the connection, using the database's :statement_cache_opts option.
# File lib/sequel/extensions/pg_statement_cache.rb, line 230 def self.extended(c) Sequel::Deprecation.deprecate('The pg_statement_cache extension', 'Please stop loading it') unless defined?(SEQUEL_EXTENSIONS_NO_DEPRECATION_WARNING) c.instance_variable_set(:@statement_cache, StatementCache.new(c.sequel_db.opts[:statement_cache_opts] || {}){|name| c.deallocate(name)}) end
Deallocate on the server the prepared statement with the given name.
# File lib/sequel/extensions/pg_statement_cache.rb, line 242 def deallocate(name) begin execute("DEALLOCATE #{name}") rescue PGError # table probably got removed, just ignore it end end
pg seems to already use the db method (but not the @db instance variable), so use the sequel_db method to access the related Sequel::Database object.
# File lib/sequel/extensions/pg_statement_cache.rb, line 237 def sequel_db @db end
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