Fix tests

bloomberg · Mar 5, 2024 · 943b18f · 943b18f
1 parent 8d0c6ee
commit 943b18f
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diff --git a/plugin/trino-snowflake/src/main/java/io/trino/plugin/snowflake/SnowflakeClient.java b/plugin/trino-snowflake/src/main/java/io/trino/plugin/snowflake/SnowflakeClient.java
@@ -29,6 +29,7 @@
 import io.trino.plugin.jdbc.JdbcTableHandle;
 import io.trino.plugin.jdbc.JdbcTypeHandle;
 import io.trino.plugin.jdbc.LongWriteFunction;
+import io.trino.plugin.jdbc.ObjectReadFunction;
 import io.trino.plugin.jdbc.ObjectWriteFunction;
 import io.trino.plugin.jdbc.PredicatePushdownController;
 import io.trino.plugin.jdbc.QueryBuilder;
@@ -66,17 +67,25 @@
 import java.math.RoundingMode;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
+import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.sql.Timestamp;
 import java.sql.Types;
 import java.time.Instant;
 import java.time.LocalDate;
+import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.ZoneId;
+import java.time.ZoneOffset;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Optional;
+import java.util.TimeZone;
 import java.util.function.BiFunction;
 
 import static com.google.common.base.Preconditions.checkArgument;
@@ -101,6 +110,7 @@ public class SnowflakeClient
     private static final DateTimeFormatter SNOWFLAKE_DATE_FORMATTER = DateTimeFormatter.ofPattern("uuuu-MM-dd");
     private static final DateTimeFormatter SNOWFLAKE_TIMESTAMP_FORMATTER = DateTimeFormatter.ofPattern("u-MM-dd'T'HH:mm:ss.SSSSSSSSS");
     private static final DateTimeFormatter SNOWFLAKE_TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss.SSSSSSSSS");
+    private static final TimeZone UTC_TZ = TimeZone.getTimeZone(ZoneId.of("UTC"));
     private final AggregateFunctionRewriter<JdbcExpression, ?> aggregateFunctionRewriter;
 
     private interface WriteMappingFunction
@@ -170,6 +180,7 @@ public Optional<ColumnMapping> toColumnMapping(ConnectorSession session, Connect
 
         final Map<String, ColumnMappingFunction> snowflakeColumnMappings = ImmutableMap.<String, ColumnMappingFunction>builder()
                 .put("time", handle -> Optional.of(timeColumnMapping(handle.getRequiredDecimalDigits())))
+                .put("timestampntz", handle -> Optional.of(timestampColumnMapping(handle.getRequiredDecimalDigits())))
                 .put("date", handle -> Optional.of(ColumnMapping.longMapping(DateType.DATE, (resultSet, columnIndex) -> LocalDate.ofEpochDay(resultSet.getLong(columnIndex)).toEpochDay(), snowFlakeDateWriter())))
                 .put("varchar", handle -> Optional.of(varcharColumnMapping(handle.getRequiredColumnSize())))
                 .put("number", handle -> {
@@ -312,6 +323,41 @@ private static ColumnMapping timeColumnMapping(int precision)
                 PredicatePushdownController.FULL_PUSHDOWN);
     }
 
+    private static ColumnMapping timestampColumnMapping(int precision)
+    {
+        // <= 6 fits into a long
+        if (precision <= 6) {
+            return ColumnMapping.longMapping(TimestampType.createTimestampType(precision), (resultSet, columnIndex) -> StandardColumnMappings.toTrinoTimestamp(TimestampType.createTimestampType(precision), toLocalDateTime(resultSet, columnIndex)), timestampWriteFunction());
+        }
+
+        // Too big. Put it in an object
+        return ColumnMapping.objectMapping(TimestampType.createTimestampType(precision), longTimestampReader(), longTimestampWriter(precision));
+    }
+
+    private static LocalDateTime toLocalDateTime(ResultSet resultSet, int columnIndex)
+            throws SQLException
+    {
+        Calendar calendar = new GregorianCalendar(UTC_TZ, Locale.ENGLISH);
+        calendar.setTime(new Date(0));
+        Timestamp ts = resultSet.getTimestamp(columnIndex, calendar);
+        return LocalDateTime.ofInstant(Instant.ofEpochMilli(ts.getTime()), ZoneOffset.UTC);
+    }
+
+    private static ObjectReadFunction longTimestampReader()
+    {
+        return ObjectReadFunction.of(LongTimestamp.class, (resultSet, columnIndex) -> {
+            Calendar calendar = new GregorianCalendar(UTC_TZ, Locale.ENGLISH);
+            calendar.setTime(new Date(0));
+            Timestamp ts = resultSet.getTimestamp(columnIndex, calendar);
+            long epochMillis = ts.getTime();
+            int nanosInTheSecond = ts.getNanos();
+            int nanosInTheMilli = nanosInTheSecond % Timestamps.NANOSECONDS_PER_MILLISECOND;
+            long micro = epochMillis * Timestamps.MICROSECONDS_PER_MILLISECOND + (nanosInTheMilli / Timestamps.NANOSECONDS_PER_MICROSECOND);
+            int picosOfMicro = nanosInTheMilli % 1000 * 1000;
+            return new LongTimestamp(micro, picosOfMicro);
+        });
+    }
+
     private static LongWriteFunction timeWriteFunction(int precision)
     {
         checkArgument(precision <= MAX_SUPPORTED_TEMPORAL_PRECISION, "Unsupported precision: %s", precision);

diff --git a/...n/trino-snowflake/src/test/java/io/trino/plugin/snowflake/TestSnowflakeConnectorTest.java b/...n/trino-snowflake/src/test/java/io/trino/plugin/snowflake/TestSnowflakeConnectorTest.java
@@ -21,6 +21,7 @@
 import io.trino.testing.TestingConnectorBehavior;
 import io.trino.testing.sql.SqlExecutor;
 import io.trino.testing.sql.TestTable;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestInstance;
 import org.junit.jupiter.api.parallel.Execution;
@@ -247,6 +248,31 @@ public void testLimitPushdown()
         abort("TODO");
     }
 
+    @Test
+    @Disabled
+    @Override
+    public void testCommentTable()
+    {
+        // This connector does not support setting table comments
+    }
+
+    @Test
+    @Override
+    public void testCommentTableSpecialCharacter()
+    {
+        assertThatThrownBy(super::testCommentTableSpecialCharacter)
+                .hasStackTraceContaining("This connector does not support setting table comments");
+    }
+
+    @Test
+    @Override
+    public void testDataMappingSmokeTest()
+    {
+        // TODO: Connector does not support type timestamptz for the first commit
+        assertThatThrownBy(super::testDataMappingSmokeTest)
+                .hasStackTraceContaining("Unsupported column type(2014):timestamptz");
+    }
+
     @Test
     @Override
     public void testInsertIntoNotNullColumn()