amaliujia commented on a change in pull request #12073:
URL: https://github.com/apache/beam/pull/12073#discussion_r445150359
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File path:
sdks/java/extensions/sql/src/test/java/org/apache/beam/sdk/extensions/sql/impl/rel/BeamMatchRelTest.java
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@@ -0,0 +1,50 @@
+package org.apache.beam.sdk.extensions.sql.impl.rel;
+
+import org.apache.beam.sdk.extensions.sql.SqlTransform;
+import org.apache.beam.sdk.testing.TestPipeline;
+import org.apache.beam.sdk.transforms.Create;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.Row;
+import org.junit.Test;
+import org.apache.beam.sdk.schemas.Schema;
+
+public class BeamMatchRelTest {
+
+ public static final TestPipeline pipeline = TestPipeline.create();
+
+ @Test
+ public void MatchLogicalPlanTest() {
+ Schema schemaType = Schema.builder()
+ .addInt32Field("id")
+ .addStringField("name")
+ .addInt32Field("proctime")
+ .build();
+
+ PCollection<Row> input =
+ pipeline.apply(
+ Create.of(
+
Row.withSchema(schemaType).addValue(1).addValue("a").addValue(1).build())
+ .withRowSchema(schemaType));
+
+ String sql = "SELECT T.aid, T.bid, T.cid " +
+ "FROM PCOLLECTION " +
+ "MATCH_RECOGNIZE (" +
+ "PARTITION BY id " +
+ "ORDER BY proctime " +
+ "MEASURES " +
+ "A.id AS aid, " +
+ "B.id AS bid, " +
+ "C.id AS cid " +
+ "PATTERN (A B C) " +
+ "DEFINE " +
+ "A AS name = 'a', " +
+ "B AS name = 'b', " +
+ "C AS name = 'c' " +
+ ") AS T";
+
+ PCollection<Row> result = input.apply(SqlTransform.query(sql));
Review comment:
I see. Yes I think this test is valid. It tests if the query can be
compile, which includes the BeamMatchRel.
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