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* Add ES|QL Locate function
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| pr: 106899 | ||
| summary: Add ES|QL Locate function | ||
| area: ES|QL | ||
| type: enhancement | ||
| issues: | ||
| - 106818 |
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| // This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it. | ||
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| *Description* | ||
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| Returns an integer that indicates the position of a keyword substring within another string |
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| // This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it. | ||
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| [discrete] | ||
| [[esql-locate]] | ||
| === `LOCATE` | ||
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| *Syntax* | ||
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| [.text-center] | ||
| image::esql/functions/signature/locate.svg[Embedded,opts=inline] | ||
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| include::../parameters/locate.asciidoc[] | ||
| include::../description/locate.asciidoc[] | ||
| include::../types/locate.asciidoc[] |
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| // This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it. | ||
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| *Parameters* | ||
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| `string`:: | ||
| An input string | ||
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| `substring`:: | ||
| A substring to locate in the input string | ||
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| `start`:: | ||
| The start index |
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| // This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it. | ||
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| *Supported types* | ||
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| [%header.monospaced.styled,format=dsv,separator=|] | ||
| |=== | ||
| string | substring | start | result | ||
| keyword | keyword | integer | integer | ||
| keyword | text | integer | integer | ||
| text | keyword | integer | integer | ||
| text | text | integer | integer | ||
| |=== |
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166 changes: 166 additions & 0 deletions
166
...rated/org/elasticsearch/xpack/esql/expression/function/scalar/string/LocateEvaluator.java
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| // Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| // or more contributor license agreements. Licensed under the Elastic License | ||
| // 2.0; you may not use this file except in compliance with the Elastic License | ||
| // 2.0. | ||
| package org.elasticsearch.xpack.esql.expression.function.scalar.string; | ||
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| import java.lang.IllegalArgumentException; | ||
| import java.lang.Override; | ||
| import java.lang.String; | ||
| import org.apache.lucene.util.BytesRef; | ||
| import org.elasticsearch.compute.data.Block; | ||
| import org.elasticsearch.compute.data.BytesRefBlock; | ||
| import org.elasticsearch.compute.data.BytesRefVector; | ||
| import org.elasticsearch.compute.data.IntBlock; | ||
| import org.elasticsearch.compute.data.IntVector; | ||
| import org.elasticsearch.compute.data.Page; | ||
| import org.elasticsearch.compute.operator.DriverContext; | ||
| import org.elasticsearch.compute.operator.EvalOperator; | ||
| import org.elasticsearch.core.Releasables; | ||
| import org.elasticsearch.xpack.esql.expression.function.Warnings; | ||
| import org.elasticsearch.xpack.ql.tree.Source; | ||
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| /** | ||
| * {@link EvalOperator.ExpressionEvaluator} implementation for {@link Locate}. | ||
| * This class is generated. Do not edit it. | ||
| */ | ||
| public final class LocateEvaluator implements EvalOperator.ExpressionEvaluator { | ||
| private final Warnings warnings; | ||
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| private final EvalOperator.ExpressionEvaluator str; | ||
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| private final EvalOperator.ExpressionEvaluator substr; | ||
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| private final EvalOperator.ExpressionEvaluator start; | ||
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| private final DriverContext driverContext; | ||
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| public LocateEvaluator(Source source, EvalOperator.ExpressionEvaluator str, | ||
| EvalOperator.ExpressionEvaluator substr, EvalOperator.ExpressionEvaluator start, | ||
| DriverContext driverContext) { | ||
| this.warnings = new Warnings(source); | ||
| this.str = str; | ||
| this.substr = substr; | ||
| this.start = start; | ||
| this.driverContext = driverContext; | ||
| } | ||
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| @Override | ||
| public Block eval(Page page) { | ||
| try (BytesRefBlock strBlock = (BytesRefBlock) str.eval(page)) { | ||
| try (BytesRefBlock substrBlock = (BytesRefBlock) substr.eval(page)) { | ||
| try (IntBlock startBlock = (IntBlock) start.eval(page)) { | ||
| BytesRefVector strVector = strBlock.asVector(); | ||
| if (strVector == null) { | ||
| return eval(page.getPositionCount(), strBlock, substrBlock, startBlock); | ||
| } | ||
| BytesRefVector substrVector = substrBlock.asVector(); | ||
| if (substrVector == null) { | ||
| return eval(page.getPositionCount(), strBlock, substrBlock, startBlock); | ||
| } | ||
| IntVector startVector = startBlock.asVector(); | ||
| if (startVector == null) { | ||
| return eval(page.getPositionCount(), strBlock, substrBlock, startBlock); | ||
| } | ||
| return eval(page.getPositionCount(), strVector, substrVector, startVector).asBlock(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| public IntBlock eval(int positionCount, BytesRefBlock strBlock, BytesRefBlock substrBlock, | ||
| IntBlock startBlock) { | ||
| try(IntBlock.Builder result = driverContext.blockFactory().newIntBlockBuilder(positionCount)) { | ||
| BytesRef strScratch = new BytesRef(); | ||
| BytesRef substrScratch = new BytesRef(); | ||
| position: for (int p = 0; p < positionCount; p++) { | ||
| if (strBlock.isNull(p)) { | ||
| result.appendNull(); | ||
| continue position; | ||
| } | ||
| if (strBlock.getValueCount(p) != 1) { | ||
| if (strBlock.getValueCount(p) > 1) { | ||
| warnings.registerException(new IllegalArgumentException("single-value function encountered multi-value")); | ||
| } | ||
| result.appendNull(); | ||
| continue position; | ||
| } | ||
| if (substrBlock.isNull(p)) { | ||
| result.appendNull(); | ||
| continue position; | ||
| } | ||
| if (substrBlock.getValueCount(p) != 1) { | ||
| if (substrBlock.getValueCount(p) > 1) { | ||
| warnings.registerException(new IllegalArgumentException("single-value function encountered multi-value")); | ||
| } | ||
| result.appendNull(); | ||
| continue position; | ||
| } | ||
| if (startBlock.isNull(p)) { | ||
| result.appendNull(); | ||
| continue position; | ||
| } | ||
| if (startBlock.getValueCount(p) != 1) { | ||
| if (startBlock.getValueCount(p) > 1) { | ||
| warnings.registerException(new IllegalArgumentException("single-value function encountered multi-value")); | ||
| } | ||
| result.appendNull(); | ||
| continue position; | ||
| } | ||
| result.appendInt(Locate.process(strBlock.getBytesRef(strBlock.getFirstValueIndex(p), strScratch), substrBlock.getBytesRef(substrBlock.getFirstValueIndex(p), substrScratch), startBlock.getInt(startBlock.getFirstValueIndex(p)))); | ||
| } | ||
| return result.build(); | ||
| } | ||
| } | ||
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| public IntVector eval(int positionCount, BytesRefVector strVector, BytesRefVector substrVector, | ||
| IntVector startVector) { | ||
| try(IntVector.Builder result = driverContext.blockFactory().newIntVectorBuilder(positionCount)) { | ||
| BytesRef strScratch = new BytesRef(); | ||
| BytesRef substrScratch = new BytesRef(); | ||
| position: for (int p = 0; p < positionCount; p++) { | ||
| result.appendInt(Locate.process(strVector.getBytesRef(p, strScratch), substrVector.getBytesRef(p, substrScratch), startVector.getInt(p))); | ||
| } | ||
| return result.build(); | ||
| } | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "LocateEvaluator[" + "str=" + str + ", substr=" + substr + ", start=" + start + "]"; | ||
| } | ||
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| @Override | ||
| public void close() { | ||
| Releasables.closeExpectNoException(str, substr, start); | ||
| } | ||
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| static class Factory implements EvalOperator.ExpressionEvaluator.Factory { | ||
| private final Source source; | ||
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| private final EvalOperator.ExpressionEvaluator.Factory str; | ||
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| private final EvalOperator.ExpressionEvaluator.Factory substr; | ||
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| private final EvalOperator.ExpressionEvaluator.Factory start; | ||
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| public Factory(Source source, EvalOperator.ExpressionEvaluator.Factory str, | ||
| EvalOperator.ExpressionEvaluator.Factory substr, | ||
| EvalOperator.ExpressionEvaluator.Factory start) { | ||
| this.source = source; | ||
| this.str = str; | ||
| this.substr = substr; | ||
| this.start = start; | ||
| } | ||
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| @Override | ||
| public LocateEvaluator get(DriverContext context) { | ||
| return new LocateEvaluator(source, str.get(context), substr.get(context), start.get(context), context); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "LocateEvaluator[" + "str=" + str + ", substr=" + substr + ", start=" + start + "]"; | ||
| } | ||
| } | ||
| } |
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