kgyrtkirk commented on a change in pull request #970: Hive 23100
URL: https://github.com/apache/hive/pull/970#discussion_r408716155
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/parse/type/TypeCheckProcFactory.java
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@@ -972,55 +1005,42 @@ protected T getXpathOrFuncExprNodeDesc(ASTNode expr,
}
}
if (genericUDF instanceof GenericUDFIn) {
-
- T columnDesc = children.get(0);
- List<T> outputOpList = children.subList(1, children.size());
- List<T> inOperands = new ArrayList<>(outputOpList);
- outputOpList.clear();
-
- boolean hasNullValue = false;
- for (T oldChild : inOperands) {
- if (oldChild == null) {
- hasNullValue = true;
- continue;
- }
- T newChild = interpretNodeAsStruct(columnDesc, oldChild);
- if (newChild == null) {
- hasNullValue = true;
- continue;
- }
- outputOpList.add(newChild);
- }
-
- if (hasNullValue) {
- T nullConst =
exprFactory.createConstantExpr(exprFactory.getTypeInfo(columnDesc), null);
- if (outputOpList.size() == 0) {
- // we have found only null values...remove the IN ; it will be
null all the time.
- return nullConst;
+ ListMultimap<TypeInfo, T> expressions = ArrayListMultimap.create();
+ for (int i = 1; i < children.size(); i++) {
+ T columnDesc = children.get(0);
+ T valueDesc = interpretNodeAsConstantStruct(columnDesc,
children.get(i));
+ if (valueDesc == null) {
+ TypeInfo targetType = exprFactory.getTypeInfo(columnDesc);
+ if (!expressions.containsKey(targetType)) {
+ expressions.put(targetType, columnDesc);
+ }
+ T nullConst = exprFactory.createConstantExpr(targetType, null);
+ expressions.put(targetType, nullConst);
+ } else {
+ TypeInfo targetType = exprFactory.getTypeInfo(valueDesc);
+ if (!expressions.containsKey(targetType)) {
+ expressions.put(targetType, columnDesc);
+ }
+ expressions.put(targetType, valueDesc);
}
- outputOpList.add(nullConst);
}
- if (!ctx.isCBOExecuted()) {
-
- HiveConf conf;
- try {
- conf = Hive.get().getConf();
- } catch (HiveException e) {
- throw new SemanticException(e);
- }
- if (children.size() <= HiveConf.getIntVar(conf,
HiveConf.ConfVars.HIVEOPT_TRANSFORM_IN_MAXNODES)) {
- List<T> orOperands =
exprFactory.rewriteINIntoORFuncCallExpr(children);
- if (orOperands != null) {
- if (orOperands.size() == 1) {
-
orOperands.add(exprFactory.createBooleanConstantExpr(Boolean.FALSE.toString()));
- }
- funcText = "or";
- genericUDF = new GenericUDFOPOr();
- children.clear();
- children.addAll(orOperands);
- }
+ children.clear();
+ List<T> newExprs = new ArrayList<>();
+ int numEntries = expressions.keySet().size();
+ if (numEntries == 1) {
+ children.addAll(expressions.asMap().values().iterator().next());
+ funcText = "in";
Review comment:
why do we use in here?
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