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[8.19] [ESQL] Ensure date/date_nanos implicit casting rule behind snapshot (#130026) #130481

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Merged
merged 1 commit into from
Jul 2, 2025
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[8.19] [ESQL] Ensure date/date_nanos implicit casting rule behind snapshot (#130026) #130481

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6 changes: 0 additions & 6 deletions docs/changelog/127797.yaml
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48 changes: 34 additions & 14 deletions x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/analysis/Analyzer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,7 @@
import static java.util.Collections.singletonList;
import static org.elasticsearch.common.logging.LoggerMessageFormat.format;
import static org.elasticsearch.xpack.core.enrich.EnrichPolicy.GEO_MATCH_TYPE;
import static org.elasticsearch.xpack.esql.action.EsqlCapabilities.Cap.IMPLICIT_CASTING_DATE_AND_DATE_NANOS;
import static org.elasticsearch.xpack.esql.core.type.DataType.BOOLEAN;
import static org.elasticsearch.xpack.esql.core.type.DataType.DATETIME;
import static org.elasticsearch.xpack.esql.core.type.DataType.DATE_NANOS;
Expand Down Expand Up @@ -168,7 +169,7 @@ public class Analyzer extends ParameterizedRuleExecutor<LogicalPlan, AnalyzerCon
new ResolveInference(),
new ResolveLookupTables(),
new ResolveFunctions(),
new DateMillisToNanosInEsRelation()
new DateMillisToNanosInEsRelation(IMPLICIT_CASTING_DATE_AND_DATE_NANOS.isEnabled())
),
new Batch<>(
"Resolution",
Expand Down Expand Up @@ -1692,23 +1693,42 @@ private static LogicalPlan planWithoutSyntheticAttributes(LogicalPlan plan) {
* Cast the union typed fields in EsRelation to date_nanos if they are mixed date and date_nanos types.
*/
private static class DateMillisToNanosInEsRelation extends Rule<LogicalPlan, LogicalPlan> {

private final boolean isSnapshot;

DateMillisToNanosInEsRelation(boolean isSnapshot) {
this.isSnapshot = isSnapshot;
}

@Override
public LogicalPlan apply(LogicalPlan plan) {
return plan.transformUp(EsRelation.class, relation -> {
if (relation.indexMode() == IndexMode.LOOKUP) {
return relation;
}
return relation.transformExpressionsUp(FieldAttribute.class, f -> {
if (f.field() instanceof InvalidMappedField imf && imf.types().stream().allMatch(DataType::isDate)) {
HashMap<ResolveUnionTypes.TypeResolutionKey, Expression> typeResolutions = new HashMap<>();
var convert = new ToDateNanos(f.source(), f);
imf.types().forEach(type -> typeResolutions(f, convert, type, imf, typeResolutions));
var resolvedField = ResolveUnionTypes.resolvedMultiTypeEsField(f, typeResolutions);
return new FieldAttribute(f.source(), f.parentName(), f.name(), resolvedField, f.nullable(), f.id(), f.synthetic());
if (isSnapshot) {
return plan.transformUp(EsRelation.class, relation -> {
if (relation.indexMode() == IndexMode.LOOKUP) {
return relation;
}
return f;
return relation.transformExpressionsUp(FieldAttribute.class, f -> {
if (f.field() instanceof InvalidMappedField imf && imf.types().stream().allMatch(DataType::isDate)) {
HashMap<ResolveUnionTypes.TypeResolutionKey, Expression> typeResolutions = new HashMap<>();
var convert = new ToDateNanos(f.source(), f);
imf.types().forEach(type -> typeResolutions(f, convert, type, imf, typeResolutions));
var resolvedField = ResolveUnionTypes.resolvedMultiTypeEsField(f, typeResolutions);
return new FieldAttribute(
f.source(),
f.parentName(),
f.name(),
resolvedField,
f.nullable(),
f.id(),
f.synthetic()
);
}
return f;
});
});
});
} else {
return plan;
}
}
}

Expand Down