zabetak commented on code in PR #4135:
URL: https://github.com/apache/hive/pull/4135#discussion_r1145203540
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ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/reloperators/HiveToUnixTimestampSqlOperator.java:
##########
@@ -18,15 +18,24 @@
package org.apache.hadoop.hive.ql.optimizer.calcite.reloperators;
-import org.apache.calcite.sql.fun.SqlAbstractTimeFunction;
-import org.apache.calcite.sql.type.SqlTypeName;
+import org.apache.calcite.sql.SqlFunction;
+import org.apache.calcite.sql.SqlFunctionCategory;
+import org.apache.calcite.sql.SqlKind;
+import org.apache.calcite.sql.type.OperandTypes;
+import org.apache.calcite.sql.type.ReturnTypes;
/**
* Sql UNIX_TIMESTAMP calcite operator.
*/
-public class HiveToUnixTimestampSqlOperator extends SqlAbstractTimeFunction {
- public static final HiveToUnixTimestampSqlOperator INSTANCE = new
HiveToUnixTimestampSqlOperator();
- protected HiveToUnixTimestampSqlOperator() {
- super("UNIX_TIMESTAMP", SqlTypeName.BIGINT);
- }
+public class HiveToUnixTimestampSqlOperator {
+ public static final SqlFunction INSTANCE =
+ new SqlFunction("UNIX_TIMESTAMP", SqlKind.OTHER_FUNCTION,
ReturnTypes.BIGINT, null,
+ OperandTypes.or(OperandTypes.NILADIC,
+ OperandTypes.or(OperandTypes.STRING, OperandTypes.TIMESTAMP,
OperandTypes.DATE),
+ OperandTypes.STRING_STRING), SqlFunctionCategory.NUMERIC) {
+ @Override
+ public boolean isDynamicFunction() {
+ return true;
+ }
Review Comment:
It was the same before and it remains the same now. Ultimately, I would like
to get rid one of them completely but it was not trivial to do now (correlation
with code in Druid storage handler) thus in order to keep the PR minimal I
decided to defer this to HIVE-27162.
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