dssysolyatin commented on code in PR #2854:
URL: https://github.com/apache/calcite/pull/2854#discussion_r1128090518
##########
core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java:
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@@ -4049,6 +4081,99 @@ private static class HopImplementor implements
TableFunctionCallImplementor {
}
}
+ /**
+ * Implements
+ * <a
href="https://www.postgresql.org/docs/current/functions-comparisons.html#id-1.5.8.30.16";>
+ * ANY/SOME</a> and
+ * <a
href="https://www.postgresql.org/docs/current/functions-comparisons.html#id-1.5.8.30.17";>ALL</a>
+ * operators when the argument is an array or multiset expression.
+ */
+ private static class QuantifyCollectionImplementor extends
AbstractRexCallImplementor {
+ private final SqlBinaryOperator binaryOperator;
+ private final RexCallImplementor binaryImplementor;
+
+ QuantifyCollectionImplementor(SqlBinaryOperator binaryOperator,
+ RexCallImplementor binaryImplementor) {
+ super(NullPolicy.ANY, false);
+ this.binaryOperator = binaryOperator;
+ this.binaryImplementor = binaryImplementor;
+ }
+
+ @Override String getVariableName() {
+ return "quantify";
+ }
+
+ @Override Expression implementSafe(RexToLixTranslator translator, RexCall
call,
+ List<Expression> argValueList) {
+ Expression left = argValueList.get(0);
+ Expression right = argValueList.get(1);
+ final RelDataType rightComponentType =
+
requireNonNull(call.getOperands().get(1).getType().getComponentType());
+ // If the array expression yields a null array, the result of SOME|ALL
will be null
+ if (rightComponentType.getSqlTypeName() == SqlTypeName.NULL) {
+ return NULL_EXPR;
+ }
+
+ // final T _quantify_left_value = <>
Review Comment:
I have added more comments to explain why this code has been commented.
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