Module | Sequel::MySQL::DatabaseMethods |
In: |
lib/sequel/adapters/shared/mysql.rb
|
AUTO_INCREMENT | = | 'AUTO_INCREMENT'.freeze |
CAST_TYPES | = | {String=>:CHAR, Integer=>:SIGNED, Time=>:DATETIME, DateTime=>:DATETIME, Numeric=>:DECIMAL, BigDecimal=>:DECIMAL, File=>:BINARY} |
PRIMARY | = | 'PRIMARY'.freeze |
Use SHOW INDEX FROM to get the index information for the table.
# File lib/sequel/adapters/shared/mysql.rb, line 39 39: def indexes(table, opts={}) 40: indexes = {} 41: remove_indexes = [] 42: m = output_identifier_meth 43: im = input_identifier_meth 44: metadata_dataset.with_sql("SHOW INDEX FROM ?", SQL::Identifier.new(im.call(table))).each do |r| 45: name = r[:Key_name] 46: next if name == PRIMARY 47: name = m.call(name) 48: remove_indexes << name if r[:Sub_part] 49: i = indexes[name] ||= {:columns=>[], :unique=>r[:Non_unique] != 1} 50: i[:columns] << m.call(r[:Column_name]) 51: end 52: indexes.reject{|k,v| remove_indexes.include?(k)} 53: end
Get version of MySQL server, used for determined capabilities.
# File lib/sequel/adapters/shared/mysql.rb, line 56 56: def server_version 57: m = /(\d+)\.(\d+)\.(\d+)/.match(get(SQL::Function.new(:version))) 58: @server_version ||= (m[1].to_i * 10000) + (m[2].to_i * 100) + m[3].to_i 59: end
Return an array of symbols specifying table names in the current database.
Options:
# File lib/sequel/adapters/shared/mysql.rb, line 65 65: def tables(opts={}) 66: m = output_identifier_meth 67: metadata_dataset.with_sql('SHOW TABLES').server(opts[:server]).map{|r| m.call(r.values.first)} 68: end