I'm trying to join two VARCHAR2 columns of differing length. The generate SQL casts the shorter to match the longer.
create table myschema.a_table( description varchar2(10) ); create table myschema.b_table( description20 varchar2(20) ); When the join is attempted 0: jdbc:drill:zk=local> select * . . . . . . . . . . . > from utd_utpdba.UTPDBA.A_TABLE . . . . . . . . . . . > inner join utd_utpdba.UTPDBA.B_TABLE . . . . . . . . . . . > on A_TABLE.DESCRIPTION = B_TABLE.DESCRIPTION20; The following CAST pattern is not acceptable to Oracle (11.2) Error: DATA_READ ERROR: The JDBC storage plugin failed while trying setup the SQL query. sql SELECT * FROM (SELECT "DESCRIPTION", CAST("DESCRIPTION" AS VARCHAR(20) CHARACTER SET "ISO-8859-1") "$f2" FROM "UTPDBA"."A_TABLE") "t" INNER JOIN "UTPDBA"."B_TABLE" ON "t"."$f2" = "B_TABLE"."DESCRIPTION20" plugin utd_utpdba Fragment 0:0 [Error Id: 2f9a1975-fa57-4b07-8642-4dca3d03ae39 on x.x.x.x:31010] (java.sql.SQLSyntaxErrorException) ORA-00907: missing right parenthesis oracle.jdbc.driver.T4CTTIoer.processError():450 .... java.lang.Thread.run():745 (state=,code=0) Specifically, CHARACTER SET "ISO-8859-1" is not allowed in the cast statement: *CAST*({ expr | *MULTISET* (subquery) } *AS* type_name) https://docs.oracle.com/cd/B28359_01/server.111/b28286/functions016.htm Cheers! -- Notice: This email is confidential and may contain copyright material of members of the Ocado Group. Opinions and views expressed in this message may not necessarily reflect the opinions and views of the members of the Ocado Group. If you are not the intended recipient, please notify us immediately and delete all copies of this message. Please note that it is your responsibility to scan this message for viruses. Fetch and Sizzle are trading names of Speciality Stores Limited, a member of the Ocado Group. References to the “Ocado Group” are to Ocado Group plc (registered in England and Wales with number 7098618) and its subsidiary undertakings (as that expression is defined in the Companies Act 2006) from time to time. The registered office of Ocado Group plc is Titan Court, 3 Bishops Square, Hatfield Business Park, Hatfield, Herts. AL10 9NE.