HANA translator: boolean column is not valid boolean expression in HANA ----------------------------------------------------------------------- Key: TEIID-4246 URL: https://issues.jboss.org/browse/TEIID-4246 Project: Teiid Issue Type: Bug Components: Misc. Connectors Affects Versions: 8.12.5 Reporter: Jan Stastny Assignee: Steven Hawkins Priority: Critical Fix For: 9.0, 8.12.5 SAP HANA does not take boolean column or literal as boolean expressions. Query like this won't pass (invoked on HANA directly): {code:sql} SELECT (CASE WHEN BooleanValue THEN 'a' ELSE 'b' END) FROM BQT1.smalla; {code} The following could serve as workaround (invoked on HANA directly): {code:sql} SELECT (CASE WHEN BooleanValue=true THEN 'a' ELSE 'b' END) FROM BQT1.smalla; {code} The problem is observable when using boolean column in string function (invoked on Teiid): {code:sql} SELECT INTKEY, ('test+' || (BOOLEANVALUE || '+test')) FROM BQT1.SmallA ORDER BY IntKey {code} Which results in following error: {code:sql} TEIID30504 Remote org.teiid.core.TeiidProcessingException: TEIID30504 HanaSource: 257 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0."INTKEY" AS c_0, concat('test+', concat(CASE WHEN g_0."BOOLEANVALUE" THEN 'true' WHEN not(g_0."BOOLEANVALUE") THEN 'false' END, '+test')) AS c_1 FROM "BQT1"."SMALLA" AS g_0 ORDER BY c_0] {code}