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new a711a95239 [INLONG-10781][SDK] Transform SQL support temporal
functions(Including form_unixtime, unix_timestamp and to_timestamp) (#10805)
a711a95239 is described below
commit a711a95239c8d6f360e6bdc7d4c4411bdf42977e
Author: yfsn666 <61183968+yfsn...@users.noreply.github.com>
AuthorDate: Mon Aug 19 10:12:22 2024 +0800
[INLONG-10781][SDK] Transform SQL support temporal functions(Including
form_unixtime, unix_timestamp and to_timestamp) (#10805)
---
.../process/function/FromUnixTimeFunction.java | 85 ++++++++++++++
.../process/function/ToTimestampFunction.java | 87 ++++++++++++++
.../process/function/UnixTimestampFunction.java | 79 +++++++++++++
.../transform/process/operator/OperatorTools.java | 6 +
.../TestTransformTemporalFunctionsProcessor.java | 128 +++++++++++++++++++++
5 files changed, 385 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/FromUnixTimeFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/FromUnixTimeFunction.java
new file mode 100644
index 0000000000..d8a423ca2d
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/FromUnixTimeFunction.java
@@ -0,0 +1,85 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.inlong.sdk.transform.process.function;
+
+import org.apache.inlong.sdk.transform.decode.SourceData;
+import org.apache.inlong.sdk.transform.process.Context;
+import org.apache.inlong.sdk.transform.process.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.expression.Function;
+
+import java.math.BigDecimal;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * FromUnixTimeFunction
+ * description: form_unixtime(numeric[, string])--returns a representation of
the numeric argument as a value in string
+ * format(default is ‘yyyy-MM-dd HH:mm:ss’). numeric is an internal timestamp
value representing seconds
+ * since ‘1970-01-01 00:00:00’ UTC, such as produced by the UNIX_TIMESTAMP()
function.
+ */
+public class FromUnixTimeFunction implements ValueParser {
+
+ private ValueParser numericParser;
+ private ValueParser stringParser;
+ private static final Map<String, DateTimeFormatter> OUTPUT_FORMATTERS =
new ConcurrentHashMap<>();
+ private static final String DEFAULT_FORMAT = "yyyy-MM-dd HH:mm:ss";
+
+ public FromUnixTimeFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+ numericParser = OperatorTools.buildParser(expressions.get(0));
+ // Determine the number of arguments and build parser
+ if (expressions.size() == 2) {
+ stringParser = OperatorTools.buildParser(expressions.get(1));
+ }
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object numericObj = numericParser.parse(sourceData, rowIndex, context);
+ BigDecimal unixTimestamp = OperatorTools.parseBigDecimal(numericObj);
+ String formatPattern =
+ stringParser != null ?
OperatorTools.parseString(stringParser.parse(sourceData, rowIndex, context))
+ : DEFAULT_FORMAT;
+
+ // Convert UNIX timestamp to UTC LocalDateTime
+ LocalDateTime utcDateTime =
+
LocalDateTime.ofInstant(Instant.ofEpochSecond(unixTimestamp.longValue()),
ZoneOffset.UTC);
+ // Convert UTC LocalDateTime to system default zone LocalDateTime
+ LocalDateTime localDateTime =
+
utcDateTime.atZone(ZoneOffset.UTC).withZoneSameInstant(ZoneId.systemDefault()).toLocalDateTime();
+ return localDateTime.format(getDateTimeFormatter(formatPattern));
+ }
+
+ private DateTimeFormatter getDateTimeFormatter(String pattern) {
+ DateTimeFormatter formatter = OUTPUT_FORMATTERS.get(pattern);
+ if (formatter == null) {
+ formatter = DateTimeFormatter.ofPattern(pattern);
+ OUTPUT_FORMATTERS.put(pattern, formatter);
+ }
+ return formatter;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToTimestampFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToTimestampFunction.java
new file mode 100644
index 0000000000..45f51511f1
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToTimestampFunction.java
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.inlong.sdk.transform.process.function;
+
+import org.apache.inlong.sdk.transform.decode.SourceData;
+import org.apache.inlong.sdk.transform.process.Context;
+import org.apache.inlong.sdk.transform.process.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.expression.Function;
+
+import java.sql.Timestamp;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.util.List;
+
+/**
+ * ToTimestampFunction
+ * description:
+ * to_timestamp(string1[, string2])--converts date time string string1 in
format string2
+ * (by default: yyyy-MM-dd HH:mm:ss if not specified) under the ‘UTC+0’ time
zone to a timestamp
+ */
+public class ToTimestampFunction implements ValueParser {
+
+ private ValueParser stringParser;
+ private ValueParser formatParser;
+ private static final String DEFAULT_FORMAT = "yyyy-MM-dd HH:mm:ss";
+
+ public ToTimestampFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+
+ // Determine the number of arguments and build parser
+ stringParser = OperatorTools.buildParser(expressions.get(0));
+ if (expressions.size() == 2) {
+ formatParser = OperatorTools.buildParser(expressions.get(1));
+ }
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ String dateString =
OperatorTools.parseString(stringParser.parse(sourceData, rowIndex, context));
+ String formatPattern =
+ formatParser != null ?
OperatorTools.parseString(formatParser.parse(sourceData, rowIndex, context))
+ : DEFAULT_FORMAT;
+ DateTimeFormatter formatter =
DateTimeFormatter.ofPattern(formatPattern);
+
+ LocalDateTime dateTime;
+ try {
+ // Try parsing as LocalDateTime
+ dateTime = LocalDateTime.parse(dateString, formatter);
+ } catch (DateTimeParseException e) {
+ // If LocalDateTime parsing fails, try parsing as LocalDate and
use default LocalTime
+ LocalDate date = LocalDate.parse(dateString, formatter);
+ dateTime = LocalDateTime.of(date, LocalTime.MIDNIGHT);
+ }
+
+ // Convert LocalDateTime to Timestamp in UTC+0
+ long utcMillis = dateTime.toInstant(ZoneOffset.UTC).toEpochMilli();
+ Timestamp timestamp = new Timestamp(utcMillis);
+
+ // Convert Timestamp to a string in UTC+0
+ DateTimeFormatter outputFormatter =
+ DateTimeFormatter.ofPattern("yyyy-MM-dd
HH:mm:ss.S").withZone(ZoneId.of("UTC"));
+ return outputFormatter.format(timestamp.toInstant());
+ }
+}
\ No newline at end of file
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/UnixTimestampFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/UnixTimestampFunction.java
new file mode 100644
index 0000000000..518fb6a646
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/UnixTimestampFunction.java
@@ -0,0 +1,79 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.inlong.sdk.transform.process.function;
+
+import org.apache.inlong.sdk.transform.decode.SourceData;
+import org.apache.inlong.sdk.transform.process.Context;
+import org.apache.inlong.sdk.transform.process.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.expression.Function;
+
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+
+/**
+ * UnixTimestampFunction
+ * description:
+ * unix_timestamp(): returns current Unix timestamp in seconds
+ * unix_timestamp(string1[, string2]): converts date time string string1 in
format string2
+ * (by default: yyyy-MM-dd HH:mm:ss if not specified) to Unix timestamp (in
seconds)
+ */
+public class UnixTimestampFunction implements ValueParser {
+
+ private ValueParser stringParser;
+ private ValueParser formatParser;
+ private static final String DEFAULT_FORMAT = "yyyy-MM-dd HH:mm:ss";
+
+ public UnixTimestampFunction(Function expr) {
+ if (expr.getParameters() == null) {
+ return;
+ }
+ List<Expression> expressions = expr.getParameters().getExpressions();
+
+ // Determine the number of arguments and build parser
+ stringParser = OperatorTools.buildParser(expressions.get(0));
+ if (expressions.size() == 2) {
+ formatParser = OperatorTools.buildParser(expressions.get(1));
+ }
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ // If stringParser is null, return current Unix timestamp in seconds
+ if (stringParser == null) {
+ return Instant.now().getEpochSecond();
+ }
+
+ String dateString =
OperatorTools.parseString(stringParser.parse(sourceData, rowIndex, context));
+ String formatPattern =
+ formatParser != null ?
OperatorTools.parseString(formatParser.parse(sourceData, rowIndex, context))
+ : DEFAULT_FORMAT;
+ DateTimeFormatter formatter =
DateTimeFormatter.ofPattern(formatPattern);
+
+ // Parse the input date string with the given format
+ LocalDateTime dateTime = LocalDateTime.parse(dateString, formatter);
+
+ // Convert LocalDateTime to Unix timestamp in seconds
+ return dateTime.atZone(ZoneId.systemDefault()).toEpochSecond();
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
index 8c48aedfe7..200c5b9d17 100644
---
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
@@ -25,6 +25,7 @@ import
org.apache.inlong.sdk.transform.process.function.DateExtractFunction.Date
import org.apache.inlong.sdk.transform.process.function.DateFormatFunction;
import org.apache.inlong.sdk.transform.process.function.ExpFunction;
import org.apache.inlong.sdk.transform.process.function.FloorFunction;
+import org.apache.inlong.sdk.transform.process.function.FromUnixTimeFunction;
import org.apache.inlong.sdk.transform.process.function.LnFunction;
import org.apache.inlong.sdk.transform.process.function.LocateFunction;
import org.apache.inlong.sdk.transform.process.function.Log10Function;
@@ -38,6 +39,8 @@ import
org.apache.inlong.sdk.transform.process.function.SqrtFunction;
import org.apache.inlong.sdk.transform.process.function.SubstringFunction;
import
org.apache.inlong.sdk.transform.process.function.TimestampExtractFunction;
import org.apache.inlong.sdk.transform.process.function.ToDateFunction;
+import org.apache.inlong.sdk.transform.process.function.ToTimestampFunction;
+import org.apache.inlong.sdk.transform.process.function.UnixTimestampFunction;
import org.apache.inlong.sdk.transform.process.parser.AdditionParser;
import org.apache.inlong.sdk.transform.process.parser.ColumnParser;
import org.apache.inlong.sdk.transform.process.parser.DateParser;
@@ -124,6 +127,9 @@ public class OperatorTools {
functionMap.put("second",
func -> new
TimestampExtractFunction(TimestampExtractFunction.TimestampExtractFunctionType.SECOND,
func));
+ functionMap.put("from_unixtime", FromUnixTimeFunction::new);
+ functionMap.put("unix_timestamp", UnixTimestampFunction::new);
+ functionMap.put("to_timestamp", ToTimestampFunction::new);
}
public static ExpressionOperator buildOperator(Expression expr) {
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformTemporalFunctionsProcessor.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformTemporalFunctionsProcessor.java
index 7760428ed4..7a40411bc6 100644
---
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformTemporalFunctionsProcessor.java
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformTemporalFunctionsProcessor.java
@@ -234,4 +234,132 @@ public class TestTransformTemporalFunctionsProcessor {
Assert.assertEquals(1, output3.size());
Assert.assertEquals(output3.get(0), "result=34");
}
+
+ @Test
+ public void testFromUnixTimeFunction() throws Exception {
+ String transformSql1 = "select from_unixtime(numeric1) from source";
+ TransformConfig config1 = new TransformConfig(transformSql1);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config1,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: from_unixtime(44)
+ List<String> output1 = processor1.transform("can|apple|cloud|44|1|3",
new HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=1970-01-01 08:00:44");
+
+ String transformSql2 = "select from_unixtime(numeric1, 'yyyy/MM/dd
HH:mm:ss') from source";
+ TransformConfig config2 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor2 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case2: from_unixtime(44, 'yyyy/MM/dd HH:mm:ss')
+ List<String> output2 = processor2.transform("can|apple|cloud|44|1|3",
new HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=1970/01/01 08:00:44");
+
+ String transformSql3 = "select from_unixtime(numeric1, 'MMdd-yyyy')
from source";
+ TransformConfig config3 = new TransformConfig(transformSql3);
+ TransformProcessor<String, String> processor3 = TransformProcessor
+ .create(config3,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case3: from_unixtime(44, 'MMdd-yyyy')
+ List<String> output3 = processor3.transform("can|apple|cloud|44|1|3",
new HashMap<>());
+ Assert.assertEquals(1, output3.size());
+ Assert.assertEquals(output3.get(0), "result=0101-1970");
+
+ String transformSql4 = "select from_unixtime(numeric1, 'yyyyMMddHHss')
from source";
+ TransformConfig config4 = new TransformConfig(transformSql4);
+ TransformProcessor<String, String> processor4 = TransformProcessor
+ .create(config4,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case4: from_unixtime(44, 'yyyyMMddHHss')
+ List<String> output4 = processor4.transform("can|apple|cloud|44|1|3",
new HashMap<>());
+ Assert.assertEquals(1, output4.size());
+ Assert.assertEquals(output4.get(0), "result=197001010844");
+ }
+
+ @Test
+ public void testUnixTimestampFunction() throws Exception {
+ String transformSql1 = "select unix_timestamp() from source";
+ TransformConfig config1 = new TransformConfig(transformSql1);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config1,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: unix_timestamp()
+ List<String> output1 = processor1.transform("", new HashMap<>());
+ Assert.assertEquals(1, output1.size());
+
+ String transformSql2 = "select unix_timestamp(string1, 'yyyy/MM/dd
HH:mm:ss') from source";
+ TransformConfig config2 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor2 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case2: unix_timestamp('1970/01/01 08:00:44', 'yyyy/MM/dd HH:mm:ss')
+ List<String> output2 = processor2.transform("1970/01/01 08:00:44", new
HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=44");
+
+ String transformSql3 = "select unix_timestamp(string1) from source";
+ TransformConfig config3 = new TransformConfig(transformSql3);
+ TransformProcessor<String, String> processor3 = TransformProcessor
+ .create(config3,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case3: unix_timestamp('1970/01/01 08:00:44')
+ List<String> output3 = processor3.transform("1970-01-01 08:00:44", new
HashMap<>());
+ Assert.assertEquals(1, output3.size());
+ Assert.assertEquals(output3.get(0), "result=44");
+
+ String transformSql4 = "select unix_timestamp(string1,
'yyyyMMddHHmmss') from source";
+ TransformConfig config4 = new TransformConfig(transformSql4);
+ TransformProcessor<String, String> processor4 = TransformProcessor
+ .create(config4,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case4: unix_timestamp('19700101080044', 'yyyyMMddHHss')
+ List<String> output4 = processor4.transform("19700101080044", new
HashMap<>());
+ Assert.assertEquals(1, output4.size());
+ Assert.assertEquals(output4.get(0), "result=44");
+ }
+
+ @Test
+ public void testToTimestampFunction() throws Exception {
+ String transformSql1 = "select to_timestamp(string1) from source";
+ TransformConfig config1 = new TransformConfig(transformSql1);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config1,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: to_timestamp('1970-01-01 00:00:44')
+ List<String> output1 = processor1.transform("1970-01-01 00:00:44", new
HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=1970-01-01 00:00:44.0");
+
+ String transformSql2 = "select to_timestamp(string1, 'yyyy/MM/dd
HH:mm:ss') from source";
+ TransformConfig config2 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor2 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case2: to_timestamp('1970/01/01 00:00:44', 'yyyy/MM/dd HH:mm:ss')
+ List<String> output2 = processor2.transform("1970/01/01 00:00:44", new
HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=1970-01-01 00:00:44.0");
+
+ String transformSql3 = "select to_timestamp(string1, 'yyyyMMddHHmmss')
from source";
+ TransformConfig config3 = new TransformConfig(transformSql3);
+ TransformProcessor<String, String> processor3 = TransformProcessor
+ .create(config3,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case3: to_timestamp('19700101000044', 'yyyyMMddHHmmss')
+ List<String> output3 = processor3.transform("19700101000044", new
HashMap<>());
+ Assert.assertEquals(1, output3.size());
+ Assert.assertEquals(output3.get(0), "result=1970-01-01 00:00:44.0");
+
+ String transformSql4 = "select to_timestamp(string1, 'yyyy-MM-dd')
from source";
+ TransformConfig config4 = new TransformConfig(transformSql4);
+ TransformProcessor<String, String> processor4 = TransformProcessor
+ .create(config4,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case4: to_timestamp('1970-01-01', 'yyyy-MM-dd')
+ List<String> output4 = processor4.transform("1970-01-01", new
HashMap<>());
+ Assert.assertEquals(1, output4.size());
+ Assert.assertEquals(output4.get(0), "result=1970-01-01 00:00:00.0");
+ }
}
