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_r269731108
########## 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 { + Review comment: Remove the extra lines in between variable declarations to keep it consistent with the rest? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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