Hi!
I have a problem with char data type after upgrading from 1.30 to 1.31. I
tried to execute a simple query "SELECT c.relkind FROM pg_catalog.pg_class
c" (relkind is JavaType(char) NOT NULL) and got an exception:
Unable to implement EnumerableCalc(expr#0..32=[{inputs}], relkind=[$t16]):
rowcount = 100.0, cumulative cost = {200.0 rows, 3501.0 cpu, 0.0 io}, id =
28
EnumerableTableScan(table=[[default, pg_catalog, pg_class]]): rowcount =
100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io}, id = 19
Suppressed: java.lang.RuntimeException: while resolving method
'toChar[class java.lang.Object]' in class class
org.apache.calcite.runtime.SqlFunctions
at org.apache.calcite.linq4j.tree.Types.lookupMethod(Types.java:318)
at org.apache.calcite.linq4j.tree.Expressions.call(Expressions.java:448)
at org.apache.calcite.linq4j.tree.Expressions.call(Expressions.java:460)
Queries with char literal work OK: "SELECT 'r';"
Does someone have an idea what can be wrong ?
