Class | Sequel::JDBC::Derby::Dataset |
In: |
lib/sequel/adapters/jdbc/derby.rb
|
Parent: | JDBC::Dataset |
PAREN_CLOSE | = | Dataset::PAREN_CLOSE |
PAREN_OPEN | = | Dataset::PAREN_OPEN |
OFFSET | = | Dataset::OFFSET |
CAST_STRING_OPEN | = | "RTRIM(".freeze |
BITCOMP_OPEN | = | "((0 - ".freeze |
BITCOMP_CLOSE | = | ") - 1)".freeze |
BLOB_OPEN | = | "CAST(X'".freeze |
BLOB_CLOSE | = | "' AS BLOB)".freeze |
HSTAR | = | "H*".freeze |
TIME_FORMAT | = | "'%H:%M:%S'".freeze |
DEFAULT_FROM | = | " FROM sysibm.sysdummy1".freeze |
ROWS | = | " ROWS".freeze |
FETCH_FIRST | = | " FETCH FIRST ".freeze |
ROWS_ONLY | = | " ROWS ONLY".freeze |
BOOL_TRUE_OLD | = | '(1 = 1)'.freeze |
BOOL_FALSE_OLD | = | '(1 = 0)'.freeze |
BOOL_TRUE | = | 'TRUE'.freeze |
BOOL_FALSE | = | 'FALSE'.freeze |
SELECT_CLAUSE_METHODS | = | clause_methods(:select, %w'select distinct columns from join where group having compounds order limit lock') |
EMULATED_FUNCTION_MAP | = | {:char_length=>'length'.freeze} |
JAVA_SQL_CLOB | = | Java::JavaSQL::Clob |
DERBY_CLOB_METHOD | = | TYPE_TRANSLATOR_INSTANCE.method(:derby_clob) |
If the type is String, trim the extra spaces since CHAR is used instead of varchar. This can cause problems if you are casting a char/varchar to a string and the ending whitespace is important.
# File lib/sequel/adapters/jdbc/derby.rb, line 203 203: def cast_sql_append(sql, expr, type) 204: if type == String 205: sql << CAST_STRING_OPEN 206: super 207: sql << PAREN_CLOSE 208: else 209: super 210: end 211: end
# File lib/sequel/adapters/jdbc/derby.rb, line 213 213: def complex_expression_sql_append(sql, op, args) 214: case op 215: when :% 216: sql << complex_expression_arg_pairs(args){|a, b| "MOD(#{literal(a)}, #{literal(b)})"} 217: when :&, :|, :^, :<<, :>> 218: raise Error, "Derby doesn't support the #{op} operator" 219: when 'B~''B~' 220: sql << BITCOMP_OPEN 221: literal_append(sql, args.at(0)) 222: sql << BITCOMP_CLOSE 223: when :extract 224: sql << args.at(0).to_s << PAREN_OPEN 225: literal_append(sql, args.at(1)) 226: sql << PAREN_CLOSE 227: else 228: super 229: end 230: end