class PG::TypeMapAllStrings
This type map casts all values received from the database server to Strings
and sends all values to the server after conversion to String by
#to_s
. That means, it is hard coded to PG::TextEncoder::String for value
encoding and to PG::TextDecoder::String for text format
respectivly PG::BinaryDecoder::Bytea
for binary format received from the server.
It is suitable for type casting query bind parameters, result values and COPY IN/OUT data.
This is the default type map for each PG::Connection .