How to use

defaultNullCollation

method

in

org.apache.calcite.config.CalciteConnectionConfig

  createSqlValidator(context, catalogReader);
validator.setIdentifierExpansion(true);
validator.setDefaultNullCollation(config.defaultNullCollation());

  createSqlValidator(context, catalogReader);
validator.setIdentifierExpansion(true);
validator.setDefaultNullCollation(config.defaultNullCollation());

  createSqlValidator(context, catalogReader);
validator.setIdentifierExpansion(true);
validator.setDefaultNullCollation(config.defaultNullCollation());

final CalciteConnectionConfig calciteConfig = context.unwrap(CalciteConnectionConfig.class);
if (calciteConfig != null) {
 validator.setDefaultNullCollation(calciteConfig.defaultNullCollation());

final CalciteConnectionConfig calciteConfig = context.unwrap(CalciteConnectionConfig.class);
if (calciteConfig != null) {
 validator.setDefaultNullCollation(calciteConfig.defaultNullCollation());