danny0405 commented on a change in pull request #706: [CALCITE-2302] Implicit
type cast support
URL: https://github.com/apache/calcite/pull/706#discussion_r310425911
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File path: core/src/main/java/org/apache/calcite/sql/SqlKind.java
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@@ -1279,6 +1279,46 @@
LESS_THAN, GREATER_THAN,
GREATER_THAN_OR_EQUAL, LESS_THAN_OR_EQUAL);
+ /**
+ * Category of binary arithmetic.
+ *
+ * <p>Consists of:
+ * {@link #PLUS}
+ * {@link #MINUS}
+ * {@link #TIMES}
+ * {@link #DIVIDE}
+ * {@link #MOD}.
+ */
+ public static final Set<SqlKind> BINARY_ARITHMETIC =
+ EnumSet.of(PLUS, MINUS, TIMES, DIVIDE, MOD);
+
+ /**
+ * Category of binary equality.
+ *
+ * <p>Consists of:
+ * {@link #EQUALS}
+ * {@link #NOT_EQUALS}
+ */
+ public static final Set<SqlKind> BINARY_EQUALITY =
+ EnumSet.of(EQUALS, NOT_EQUALS);
+
+ /**
+ * Category of binary comparison.
+ *
+ * <p>Consists of:
+ * {@link #EQUALS}
+ * {@link #NOT_EQUALS}
+ * {@link #GREATER_THAN}
+ * {@link #GREATER_THAN_OR_EQUAL}
+ * {@link #LESS_THAN}
+ * {@link #LESS_THAN_OR_EQUAL}
+ */
+ public static final Set<SqlKind> BINARY_COMPARISON =
+ EnumSet.of(
+ EQUALS, NOT_EQUALS,
+ GREATER_THAN, GREATER_THAN_OR_EQUAL,
+ LESS_THAN, LESS_THAN_OR_EQUAL);
Review comment:
But i need to make sure if the implicit type coercion behaviors for them are
the same.
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