wayang-api/wayang-api-sql/src/main/java/org/apache/wayang/api/sql/calcite/optimizer/Optimizer.java [90:122]:
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                typeFactory,
                config
        );

        SqlOperatorTable operatorTable = new ChainedSqlOperatorTable(ImmutableList.of(SqlStdOperatorTable.instance()));

        SqlValidator.Config validatorConfig = SqlValidator.Config.DEFAULT
                .withLenientOperatorLookup(config.lenientOperatorLookup())
                .withSqlConformance(config.conformance())
                .withDefaultNullCollation(config.defaultNullCollation())
                .withIdentifierExpansion(true);

        SqlValidator validator = SqlValidatorUtil.newValidator(operatorTable, catalogReader, typeFactory, validatorConfig);

        VolcanoPlanner planner = new VolcanoPlanner(RelOptCostImpl.FACTORY, Contexts.of(config));
        planner.addRelTraitDef(ConventionTraitDef.INSTANCE);

        RelOptCluster cluster = RelOptCluster.create(planner, new RexBuilder(typeFactory));

        SqlToRelConverter.Config converterConfig = SqlToRelConverter.config()
                .withTrimUnusedFields(true)
                .withExpand(false);

        SqlToRelConverter converter = new SqlToRelConverter(
                null,
                validator,
                catalogReader,
                cluster,
                StandardConvertletTable.INSTANCE,
                converterConfig
        );

        return new Optimizer(config, validator, converter, planner);
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wayang-api/wayang-api-sql/src/main/java/org/apache/wayang/api/sql/calcite/optimizer/Optimizer.java [144:176]:
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                typeFactory,
                config
        );

        SqlOperatorTable operatorTable = new ChainedSqlOperatorTable(ImmutableList.of(SqlStdOperatorTable.instance()));

        SqlValidator.Config validatorConfig = SqlValidator.Config.DEFAULT
                .withLenientOperatorLookup(config.lenientOperatorLookup())
                .withSqlConformance(config.conformance())
                .withDefaultNullCollation(config.defaultNullCollation())
                .withIdentifierExpansion(true);

        SqlValidator validator = SqlValidatorUtil.newValidator(operatorTable, catalogReader, typeFactory, validatorConfig);

        VolcanoPlanner planner = new VolcanoPlanner(RelOptCostImpl.FACTORY, Contexts.of(config));
        planner.addRelTraitDef(ConventionTraitDef.INSTANCE);

        RelOptCluster cluster = RelOptCluster.create(planner, new RexBuilder(typeFactory));

        SqlToRelConverter.Config converterConfig = SqlToRelConverter.config()
                .withTrimUnusedFields(true)
                .withExpand(false);

        SqlToRelConverter converter = new SqlToRelConverter(
                null,
                validator,
                catalogReader,
                cluster,
                StandardConvertletTable.INSTANCE,
                converterConfig
        );

        return new Optimizer(config, validator, converter, planner);
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