gunartha wrote:
select left(kd_aln,2) as code from airlin the error msg is : function left(character varying, integer) does not exist
For a complete list of string functions, look here: http://www.postgresql.org/docs/8.2/interactive/functions-string.html Perhaps you meant to use ... select substr(kd_aln,1,2) as code from airlin ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
