Examples with OutputFunction io.trino.spi.function.OutputFunction used on opensource projects

Example 11 with OutputFunction

use of io.trino.spi.function.OutputFunction in project trino by trinodb.

the class ApproximateDoublePercentileAggregations method output.

@OutputFunction(StandardTypes.DOUBLE)
public static void output(@AggregationState TDigestAndPercentileState state, BlockBuilder out) {
    TDigest digest = state.getDigest();
    double percentile = state.getPercentile();
    if (digest == null || digest.getCount() == 0.0) {
        out.appendNull();
    } else {
        checkState(percentile != -1.0, "Percentile is missing");
        checkCondition(0 <= percentile && percentile <= 1, INVALID_FUNCTION_ARGUMENT, "Percentile must be between 0 and 1");
        DOUBLE.writeDouble(out, digest.valueAt(percentile));
    }
}

Example 12 with OutputFunction

use of io.trino.spi.function.OutputFunction in project trino by trinodb.

the class ApproximateDoublePercentileArrayAggregations method output.

@OutputFunction("array(double)")
public static void output(@AggregationState TDigestAndPercentileArrayState state, BlockBuilder out) {
    TDigest digest = state.getDigest();
    List<Double> percentiles = state.getPercentiles();
    if (percentiles == null || digest == null) {
        out.appendNull();
        return;
    }
    BlockBuilder blockBuilder = out.beginBlockEntry();
    List<Double> valuesAtPercentiles = valuesAtPercentiles(digest, percentiles);
    for (double value : valuesAtPercentiles) {
        DOUBLE.writeDouble(blockBuilder, value);
    }
    out.closeEntry();
}

Example 13 with OutputFunction

use of io.trino.spi.function.OutputFunction in project trino by trinodb.

the class ApproximateRealPercentileAggregations method output.

@OutputFunction(StandardTypes.REAL)
public static void output(@AggregationState TDigestAndPercentileState state, BlockBuilder out) {
    TDigest digest = state.getDigest();
    double percentile = state.getPercentile();
    if (digest == null || digest.getCount() == 0.0) {
        out.appendNull();
    } else {
        checkState(percentile != -1.0, "Percentile is missing");
        checkCondition(0 <= percentile && percentile <= 1, INVALID_FUNCTION_ARGUMENT, "Percentile must be between 0 and 1");
        REAL.writeLong(out, floatToRawIntBits((float) digest.valueAt(percentile)));
    }
}

Example 14 with OutputFunction

use of io.trino.spi.function.OutputFunction in project trino by trinodb.

the class BigintApproximateMostFrequent method output.

@OutputFunction("map(bigint,bigint)")
public static void output(@AggregationState State state, BlockBuilder out) {
    if (state.get() == null) {
        out.appendNull();
    } else {
        BlockBuilder entryBuilder = out.beginBlockEntry();
        state.get().forEachBucket((key, value) -> {
            BigintType.BIGINT.writeLong(entryBuilder, key);
            BigintType.BIGINT.writeLong(entryBuilder, value);
        });
        out.closeEntry();
    }
}

Example 15 with OutputFunction

use of io.trino.spi.function.OutputFunction in project trino by trinodb.

the class LegacyApproximateLongPercentileAggregations method output.

@OutputFunction(StandardTypes.BIGINT)
public static void output(@AggregationState QuantileDigestAndPercentileState state, BlockBuilder out) {
    QuantileDigest digest = state.getDigest();
    double percentile = state.getPercentile();
    if (digest == null || digest.getCount() == 0.0) {
        out.appendNull();
    } else {
        checkState(percentile != -1.0, "Percentile is missing");
        checkCondition(0 <= percentile && percentile <= 1, INVALID_FUNCTION_ARGUMENT, "Percentile must be between 0 and 1");
        BIGINT.writeLong(out, digest.getQuantile(percentile));
    }
}