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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
package org.elasticsearch.xpack.esql.expression.function;

import org.elasticsearch.Build;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.util.CollectionUtils;
import org.elasticsearch.common.util.FeatureFlag;
import org.elasticsearch.xpack.esql.core.QlIllegalArgumentException;
Expand Down Expand Up @@ -163,12 +162,9 @@
import java.util.Locale;
import java.util.Map;
import java.util.function.BiFunction;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import static java.util.Collections.emptyList;
import static java.util.Collections.unmodifiableList;
import static java.util.stream.Collectors.toList;
import static org.elasticsearch.xpack.esql.core.type.DataType.BOOLEAN;
import static org.elasticsearch.xpack.esql.core.type.DataType.CARTESIAN_POINT;
import static org.elasticsearch.xpack.esql.core.type.DataType.CARTESIAN_SHAPE;
Expand Down Expand Up @@ -269,16 +265,6 @@ public Collection<FunctionDefinition> listFunctions() {
return defs.values();
}

public Collection<FunctionDefinition> listFunctions(String pattern) {
// It is worth double checking if we need this copy. These are immutable anyway.
Pattern p = Strings.hasText(pattern) ? Pattern.compile(normalize(pattern)) : null;
return defs.entrySet()
.stream()
.filter(e -> p == null || p.matcher(e.getKey()).matches())
.map(e -> cloneDefinition(e.getKey(), e.getValue()))
.collect(toList());
}

private static FunctionDefinition[][] functions() {
return new FunctionDefinition[][] {
// grouping functions
Expand Down Expand Up @@ -793,10 +779,6 @@ protected void buildDataTypesForStringLiteralConversion(FunctionDefinition[]...
}
}

protected FunctionDefinition cloneDefinition(String name, FunctionDefinition definition) {
return new FunctionDefinition(name, emptyList(), definition.clazz(), definition.builder());
}

protected interface FunctionBuilder {
Function build(Source source, List<Expression> children, Configuration cfg);
}
Expand Down