Examples with SQLServerFormatEmulation org.hibernate.dialect.function.SQLServerFormatEmulation used on opensource projects

Example 1 with SQLServerFormatEmulation

use of org.hibernate.dialect.function.SQLServerFormatEmulation in project hibernate-orm by hibernate.

the class SQLServerDialect method initializeFunctionRegistry.

@Override
public void initializeFunctionRegistry(QueryEngine queryEngine) {
    super.initializeFunctionRegistry(queryEngine);
    final BasicTypeRegistry basicTypeRegistry = queryEngine.getTypeConfiguration().getBasicTypeRegistry();
    BasicType<Date> dateType = basicTypeRegistry.resolve(StandardBasicTypes.DATE);
    BasicType<Date> timeType = basicTypeRegistry.resolve(StandardBasicTypes.TIME);
    BasicType<Date> timestampType = basicTypeRegistry.resolve(StandardBasicTypes.TIMESTAMP);
    CommonFunctionFactory functionFactory = new CommonFunctionFactory(queryEngine);
    // For SQL-Server we need to cast certain arguments to varchar(max) to be able to concat them
    queryEngine.getSqmFunctionRegistry().register("count", new CountFunction(this, queryEngine.getTypeConfiguration(), SqlAstNodeRenderingMode.DEFAULT, "+", "varchar(max)", false));
    // AVG by default uses the input type, so we possibly need to cast the argument type, hence a special function
    functionFactory.avg_castingNonDoubleArguments(this, SqlAstNodeRenderingMode.DEFAULT);
    functionFactory.truncate_round();
    functionFactory.everyAny_minMaxIif();
    functionFactory.bitLength_pattern("datalength(?1) * 8");
    if (getVersion().isSameOrAfter(10)) {
        functionFactory.locate_charindex();
        functionFactory.stddevPopSamp_stdevp();
        functionFactory.varPopSamp_varp();
    }
    if (getVersion().isSameOrAfter(11)) {
        queryEngine.getSqmFunctionRegistry().register("format", new SQLServerFormatEmulation(this, queryEngine.getTypeConfiguration()));
        // actually translate() was added in 2017 but
        // it's not worth adding a new dialect for that!
        functionFactory.translate();
        functionFactory.median_percentileCont(true);
        queryEngine.getSqmFunctionRegistry().namedDescriptorBuilder("datefromparts").setInvariantType(dateType).setExactArgumentCount(3).setParameterTypes(INTEGER).register();
        queryEngine.getSqmFunctionRegistry().namedDescriptorBuilder("timefromparts").setInvariantType(timeType).setExactArgumentCount(5).setParameterTypes(INTEGER).register();
        queryEngine.getSqmFunctionRegistry().namedDescriptorBuilder("smalldatetimefromparts").setInvariantType(timestampType).setExactArgumentCount(5).setParameterTypes(INTEGER).register();
        queryEngine.getSqmFunctionRegistry().namedDescriptorBuilder("datetimefromparts").setInvariantType(timestampType).setExactArgumentCount(7).setParameterTypes(INTEGER).register();
        queryEngine.getSqmFunctionRegistry().namedDescriptorBuilder("datetime2fromparts").setInvariantType(timestampType).setExactArgumentCount(8).setParameterTypes(INTEGER).register();
        queryEngine.getSqmFunctionRegistry().namedDescriptorBuilder("datetimeoffsetfromparts").setInvariantType(timestampType).setExactArgumentCount(10).setParameterTypes(INTEGER).register();
    }
    functionFactory.windowFunctions();
    functionFactory.inverseDistributionOrderedSetAggregates_windowEmulation();
    functionFactory.hypotheticalOrderedSetAggregates_windowEmulation();
    if (getVersion().isSameOrAfter(14)) {
        functionFactory.listagg_stringAggWithinGroup("varchar(max)");
    }
}