jcamachor commented on a change in pull request #960: HIVE-23030 ds rollup union
URL: https://github.com/apache/hive/pull/960#discussion_r399347796
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File path:
ql/src/java/org/apache/hadoop/hive/ql/exec/DataSketchesFunctions.java
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@@ -53,169 +73,278 @@
private static final String SKETCH_TO_VARIANCES = "variances";
private static final String SKETCH_TO_PERCENTILE = "percentile";
- private final Registry system;
+ private final List<SketchDescriptor> sketchClasses;
+ private final ArrayList<UDFDescriptor> descriptors;
+
+ DataSketchesFunctions() {
+ this.sketchClasses = new ArrayList<SketchDescriptor>();
+ this.descriptors = new ArrayList<HiveUDFPlugin.UDFDescriptor>();
+ registerHll();
+ registerCpc();
+ registerKll();
+ registerTheta();
+ registerTuple();
+ registerQuantiles();
+ registerFrequencies();
+
+ buildCalciteFns();
+ buildDescritors();
+ }
+
+ @Override
+ public Iterable<UDFDescriptor> getDescriptors() {
+ return descriptors;
+ }
- public DataSketchesFunctions(Registry system) {
- this.system = system;
+ private void buildDescritors() {
+ for (SketchDescriptor sketchDescriptor : sketchClasses) {
+ descriptors.addAll(sketchDescriptor.fnMap.values());
+ }
}
- public static void register(Registry system) {
- DataSketchesFunctions dsf = new DataSketchesFunctions(system);
- String prefix = "ds";
- dsf.registerHll(prefix);
- dsf.registerCpc(prefix);
- dsf.registerKll(prefix);
- dsf.registerTheta(prefix);
- dsf.registerTuple(prefix);
- dsf.registerQuantiles(prefix);
- dsf.registerFrequencies(prefix);
+ private void buildCalciteFns() {
+ for (SketchDescriptor sd : sketchClasses) {
+ // Mergability is exposed to Calcite; which enables to use it during
rollup.
+
Review comment:
nit. \n
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