gparai commented on a change in pull request #1715: DRILL-7117: Support creation of equi-depth histogram for selected dat… URL: https://github.com/apache/drill/pull/1715#discussion_r269733494
########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/TDigestFunctions.java ########## @@ -0,0 +1,1126 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.drill.exec.expr.fn.impl; + +import io.netty.buffer.DrillBuf; +import org.apache.drill.exec.expr.DrillAggFunc; +import org.apache.drill.exec.expr.DrillSimpleFunc; +import org.apache.drill.exec.expr.annotations.FunctionTemplate; +import org.apache.drill.exec.expr.annotations.FunctionTemplate.FunctionScope; +import org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling; +import org.apache.drill.exec.expr.annotations.Output; +import org.apache.drill.exec.expr.annotations.Param; +import org.apache.drill.exec.expr.annotations.Workspace; +import org.apache.drill.exec.expr.holders.BigIntHolder; +import org.apache.drill.exec.expr.holders.NullableBigIntHolder; +import org.apache.drill.exec.expr.holders.BitHolder; +import org.apache.drill.exec.expr.holders.NullableBitHolder; +import org.apache.drill.exec.expr.holders.NullableIntHolder; +import org.apache.drill.exec.expr.holders.NullableFloat8Holder; +import org.apache.drill.exec.expr.holders.NullableFloat4Holder; +import org.apache.drill.exec.expr.holders.Float8Holder; +import org.apache.drill.exec.expr.holders.Float4Holder; +import org.apache.drill.exec.expr.holders.DateHolder; +import org.apache.drill.exec.expr.holders.TimeHolder; +import org.apache.drill.exec.expr.holders.TimeStampHolder; +import org.apache.drill.exec.expr.holders.NullableDateHolder; +import org.apache.drill.exec.expr.holders.NullableTimeHolder; +import org.apache.drill.exec.expr.holders.NullableTimeStampHolder; +import org.apache.drill.exec.expr.holders.ObjectHolder; +import org.apache.drill.exec.expr.holders.IntHolder; +import org.apache.drill.exec.expr.holders.NullableVarBinaryHolder; +import org.apache.drill.exec.expr.holders.VarCharHolder; +import org.apache.drill.exec.expr.holders.VarBinaryHolder; +import org.apache.drill.exec.expr.holders.NullableVarCharHolder; +import org.apache.drill.exec.server.options.OptionManager; +import org.apache.drill.exec.vector.AllocationHelper; +import org.apache.drill.exec.vector.RepeatedFloat8Vector; + +import javax.inject.Inject; + +@SuppressWarnings("unused") +public class TDigestFunctions { + static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(TDigestFunctions.class); + + private TDigestFunctions(){} + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class BigIntTDigestFunction implements DrillAggFunc { + @Param BigIntHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableBigIntTDigestFunction implements DrillAggFunc { + @Param NullableBigIntHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class IntTDigestFunction implements DrillAggFunc { + @Param IntHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableIntTDigestFunction implements DrillAggFunc { + @Param NullableIntHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class Float8TDigestFunction implements DrillAggFunc { + @Param Float8Holder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableFloat8TDigestFunction implements DrillAggFunc { + @Param NullableFloat8Holder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class Float4TDigestFunction implements DrillAggFunc { + @Param Float4Holder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableFloat4TDigestFunction implements DrillAggFunc { + @Param NullableFloat4Holder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class BitTDigestFunction implements DrillAggFunc { + @Param BitHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableBitTDigestFunction implements DrillAggFunc { + @Param NullableBitHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class DateTDigestFunction implements DrillAggFunc { + @Param DateHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableDateTDigestFunction implements DrillAggFunc { + @Param NullableDateHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class TimeTDigestFunction implements DrillAggFunc { + @Param TimeHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableTimeTDigestFunction implements DrillAggFunc { + @Param NullableTimeHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class TimeStampTDigestFunction implements DrillAggFunc { + @Param TimeStampHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + tdigest.add(in.value); + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableTimeStampTDigestFunction implements DrillAggFunc { + @Param NullableTimeStampHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + if (in.isSet == 1) { + tdigest.add(in.value); + } else { + // do nothing since we track nulls outside the scope of the histogram + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class VarCharTDigestFunction implements DrillAggFunc { + @Param VarCharHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + + } + + @Override + public void add() { + + } + + @Override + public void output() { + } + + @Override + public void reset() { + + } + } + + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableVarCharTDigestFunction implements DrillAggFunc { + @Param NullableVarCharHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + + } + + @Override + public void add() { + + } + + @Override + public void output() { + } + + @Override + public void reset() { + + } + } + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class VarBinaryTDigestFunction implements DrillAggFunc { + @Param VarBinaryHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + + } + + @Override + public void add() { + + } + + @Override + public void output() { + } + + @Override + public void reset() { + + } + } + + + @FunctionTemplate(name = "tdigest", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class NullableVarBinaryTDigestFunction implements DrillAggFunc { + @Param NullableVarBinaryHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + + } + + @Override + public void add() { + + } + + @Override + public void output() { + } + + @Override + public void reset() { + + } + } + + @FunctionTemplate(name = "tdigest_merge", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE) + public static class TDigestMergeFunction implements DrillAggFunc { + @Param NullableVarBinaryHolder in; + @Workspace ObjectHolder work; + @Output NullableVarBinaryHolder out; + @Inject DrillBuf buffer; + @Inject OptionManager options; + @Workspace IntHolder compression; + + @Override + public void setup() { + work = new ObjectHolder(); + compression.value = (int) options.getLong(org.apache.drill.exec.ExecConstants.TDIGEST_COMPRESSION); + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + + @Override + public void add() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + if (in.isSet != 0) { + byte[] buf = org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(in.start, in.end, in.buffer).getBytes(); + com.clearspring.analytics.stream.quantile.TDigest other = + com.clearspring.analytics.stream.quantile.TDigest.fromBytes(java.nio.ByteBuffer.wrap(buf)); + tdigest.add(other); + } + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to merge TDigest output", e); + } + } + } + + @Override + public void output() { + if (work.obj != null) { + com.clearspring.analytics.stream.quantile.TDigest tdigest = (com.clearspring.analytics.stream.quantile.TDigest) work.obj; + try { + int size = tdigest.smallByteSize(); + java.nio.ByteBuffer byteBuf = java.nio.ByteBuffer.allocate(size); + tdigest.asSmallBytes(byteBuf); + out.buffer = buffer.reallocIfNeeded(size); + out.start = 0; + out.end = size; + out.buffer.setBytes(0, byteBuf.array()); + out.isSet = 1; + } catch (Exception e) { + throw new org.apache.drill.common.exceptions.DrillRuntimeException("Failed to get TDigest output", e); + } + } else { + out.isSet = 0; + } + } + + @Override + public void reset() { + work.obj = new com.clearspring.analytics.stream.quantile.TDigest(compression.value); + } + } + + @FunctionTemplate(name = "tdigest_decode", scope = FunctionScope.SIMPLE, nulls = NullHandling.NULL_IF_NULL) + public static class TDigestDecode implements DrillSimpleFunc { + + @Param + NullableVarBinaryHolder in; + + @Param + IntHolder numBuckets; + + @Output + RepeatedFloat8Vector out; + + @Override + public void setup() { + } + + public void eval() { + // allocate the output vector + AllocationHelper.allocateNew(out, numBuckets.value); + + if (in.isSet != 0) { + byte[] din = new byte[in.end - in.start]; + in.buffer.getBytes(in.start, din); + try { + // create a TDigest from the incoming bytes + com.clearspring.analytics.stream.quantile.TDigest final_tdigest = + com.clearspring.analytics.stream.quantile.TDigest.fromBytes(java.nio.ByteBuffer.wrap(din)); + double q = 1.0/numBuckets.value; + for (int i = 0; i < numBuckets.value; i++) { + final_tdigest.quantile(q * i); Review comment: This function returns `double`. Where are we constructing the `RepeatedFloat8Vector out` from it? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
