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The plugin that powers ESQL for Elasticsearch
/*
* 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.plugin;
import org.elasticsearch.Build;
import org.elasticsearch.Version;
import org.elasticsearch.common.util.set.Sets;
import org.elasticsearch.features.FeatureSpecification;
import org.elasticsearch.features.NodeFeature;
import org.elasticsearch.rest.action.admin.cluster.RestNodesCapabilitiesAction;
import org.elasticsearch.xpack.esql.action.EsqlCapabilities;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
/**
* {@link NodeFeature}s declared by ESQL. These should be used for fast checks
* on the node. Before the introduction of the {@link RestNodesCapabilitiesAction}
* this was used for controlling which features are tested so many of the
* examples below are *just* used for that. Don't make more of those - add them
* to {@link EsqlCapabilities} instead.
*
* NOTE: You can't remove a feature now and probably never will be able to.
* Only add more of these if you need a fast CPU level check.
*
*/
public class EsqlFeatures implements FeatureSpecification {
/**
* Introduction of {@code MV_SORT}, {@code MV_SLICE}, and {@code MV_ZIP}.
* Added in #106095.
*/
private static final NodeFeature MV_SORT = new NodeFeature("esql.mv_sort");
/**
* When we disabled some broken optimizations around {@code nullable}.
* Fixed in #105691.
*/
private static final NodeFeature DISABLE_NULLABLE_OPTS = new NodeFeature("esql.disable_nullable_opts");
/**
* Introduction of {@code ST_X} and {@code ST_Y}. Added in #105768.
*/
private static final NodeFeature ST_X_Y = new NodeFeature("esql.st_x_y");
/**
* When we added the warnings for multivalued fields emitting {@code null}
* when they touched multivalued fields. Added in #102417.
*/
private static final NodeFeature MV_WARN = new NodeFeature("esql.mv_warn");
/**
* Support for loading {@code geo_point} and {@code cartesian_point} fields. Added in #102177.
*/
private static final NodeFeature SPATIAL_POINTS = new NodeFeature("esql.spatial_points");
/**
* Changed precision of {@code geo_point} and {@code cartesian_point} fields, by loading from source into WKB. Done in #103691.
*/
private static final NodeFeature SPATIAL_POINTS_FROM_SOURCE = new NodeFeature("esql.spatial_points_from_source");
/**
* When we added the warnings when conversion functions fail. Like {@code TO_INT('foo')}.
* Added in ESQL-1183.
*/
private static final NodeFeature CONVERT_WARN = new NodeFeature("esql.convert_warn");
/**
* When we flipped the return type of {@code POW} to always return a double. Changed
* in #102183.
*/
private static final NodeFeature POW_DOUBLE = new NodeFeature("esql.pow_double");
/**
* Support for loading {@code geo_shape} and {@code cartesian_shape} fields. Done in #104269.
*/
private static final NodeFeature SPATIAL_SHAPES = new NodeFeature("esql.spatial_shapes");
/**
* Support for spatial aggregation {@code ST_CENTROID}. Done in #104269.
*/
private static final NodeFeature ST_CENTROID_AGG = new NodeFeature("esql.st_centroid_agg");
/**
* Support for spatial aggregation {@code ST_INTERSECTS}. Done in #104907.
*/
private static final NodeFeature ST_INTERSECTS = new NodeFeature("esql.st_intersects");
/**
* Support for spatial aggregation {@code ST_CONTAINS} and {@code ST_WITHIN}. Done in #106503.
*/
private static final NodeFeature ST_CONTAINS_WITHIN = new NodeFeature("esql.st_contains_within");
/**
* Support for spatial aggregation {@code ST_DISJOINT}. Done in #107007.
*/
private static final NodeFeature ST_DISJOINT = new NodeFeature("esql.st_disjoint");
/**
* The introduction of the {@code VALUES} agg.
*/
private static final NodeFeature AGG_VALUES = new NodeFeature("esql.agg_values");
/**
* Does ESQL support async queries.
*/
public static final NodeFeature ASYNC_QUERY = new NodeFeature("esql.async_query");
/**
* Does ESQL support FROM OPTIONS?
*/
@Deprecated
public static final NodeFeature FROM_OPTIONS = new NodeFeature("esql.from_options");
/**
* Cast string literals to a desired data type.
*/
public static final NodeFeature STRING_LITERAL_AUTO_CASTING = new NodeFeature("esql.string_literal_auto_casting");
/**
* Base64 encoding and decoding functions.
*/
public static final NodeFeature BASE64_DECODE_ENCODE = new NodeFeature("esql.base64_decode_encode");
/**
* Support for the :: casting operator
*/
public static final NodeFeature CASTING_OPERATOR = new NodeFeature("esql.casting_operator");
/**
* Blocks can be labelled with {@link org.elasticsearch.compute.data.Block.MvOrdering#SORTED_ASCENDING} for optimizations.
* C.f. {@link org.elasticsearch.TransportVersions#ESQL_MV_ORDERING_SORTED_ASCENDING}.
*/
public static final NodeFeature MV_ORDERING_SORTED_ASCENDING = new NodeFeature("esql.mv_ordering_sorted_ascending");
/**
* Support for metrics counter fields
*/
public static final NodeFeature METRICS_COUNTER_FIELDS = new NodeFeature("esql.metrics_counter_fields");
/**
* Cast string literals to a desired data type for IN predicate and more types for BinaryComparison.
*/
public static final NodeFeature STRING_LITERAL_AUTO_CASTING_EXTENDED = new NodeFeature("esql.string_literal_auto_casting_extended");
/**
* Support for metadata fields.
*/
public static final NodeFeature METADATA_FIELDS = new NodeFeature("esql.metadata_fields");
/**
* Support for loading values over enrich. This is supported by all versions of ESQL but not
* the unit test CsvTests.
*/
public static final NodeFeature ENRICH_LOAD = new NodeFeature("esql.enrich_load");
/**
* Support for timespan units abbreviations
*/
public static final NodeFeature TIMESPAN_ABBREVIATIONS = new NodeFeature("esql.timespan_abbreviations");
/**
* Support metrics counter types
*/
public static final NodeFeature COUNTER_TYPES = new NodeFeature("esql.counter_types");
/**
* Support metrics syntax
*/
public static final NodeFeature METRICS_SYNTAX = new NodeFeature("esql.metrics_syntax");
private Set snapshotBuildFeatures() {
assert Build.current().isSnapshot() : Build.current();
return Set.of(METRICS_SYNTAX);
}
@Override
public Set getFeatures() {
Set features = Set.of(
ASYNC_QUERY,
AGG_VALUES,
BASE64_DECODE_ENCODE,
MV_SORT,
DISABLE_NULLABLE_OPTS,
ST_X_Y,
FROM_OPTIONS,
SPATIAL_POINTS_FROM_SOURCE,
SPATIAL_SHAPES,
ST_CENTROID_AGG,
ST_INTERSECTS,
ST_CONTAINS_WITHIN,
ST_DISJOINT,
STRING_LITERAL_AUTO_CASTING,
CASTING_OPERATOR,
MV_ORDERING_SORTED_ASCENDING,
METRICS_COUNTER_FIELDS,
STRING_LITERAL_AUTO_CASTING_EXTENDED,
METADATA_FIELDS,
TIMESPAN_ABBREVIATIONS,
COUNTER_TYPES
);
if (Build.current().isSnapshot()) {
return Collections.unmodifiableSet(Sets.union(features, snapshotBuildFeatures()));
} else {
return features;
}
}
@Override
public Map getHistoricalFeatures() {
return Map.ofEntries(
Map.entry(TransportEsqlStatsAction.ESQL_STATS_FEATURE, Version.V_8_11_0),
Map.entry(MV_WARN, Version.V_8_12_0),
Map.entry(SPATIAL_POINTS, Version.V_8_12_0),
Map.entry(CONVERT_WARN, Version.V_8_12_0),
Map.entry(POW_DOUBLE, Version.V_8_12_0),
Map.entry(ENRICH_LOAD, Version.V_8_12_0)
);
}
}
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