[GitHub] [calcite] danny0405 commented on a change in pull request #2612: [CALCITE-4888] Unify type inferring logical for Sarg RexLiteral

[GitBox <gi...@apache.org>]

danny0405 commented on a change in pull request #2612:
URL: https://github.com/apache/calcite/pull/2612#discussion_r757749878



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File path: core/src/main/java/org/apache/calcite/rex/RexBuilder.java
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@@ -1332,10 +1334,14 @@ public RexNode makeIn(RexNode arg, List<? extends RexNode> ranges) {
     if (areAssignable(arg, ranges)) {
       final Sarg sarg = toSarg(Comparable.class, ranges, RexUnknownAs.UNKNOWN);
       if (sarg != null) {
-        final RexNode range0 = ranges.get(0);
+        final List<RelDataType> types = Util.transform(ranges, RexNode::getType);
+        final List<RelDataType> distinctTypes = Util.distinctList(types);
+        final RelDataType sargType = requireNonNull(
+            typeFactory.leastRestrictive(distinctTypes),
+            () -> "Can't find leastRestrictive type among " + distinctTypes);
         return makeCall(SqlStdOperatorTable.SEARCH,
             arg,

Review comment:
       `leastRestrictive` => `least restrictive`




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