use of org.apache.drill.exec.physical.rowSet.RowSetLoader in project drill by axbaretto.
the class TestResultSetLoaderLimits method testCustomRowLimit.
/**
* Verify that the caller can set a row limit lower than the default.
*/
@Test
public void testCustomRowLimit() {
// Try to set a default value larger than the hard limit. Value
// is truncated to the limit.
ResultSetOptions options = new OptionBuilder().setRowCountLimit(ValueVector.MAX_ROW_COUNT + 1).build();
assertEquals(ValueVector.MAX_ROW_COUNT, options.rowCountLimit);
// Just a bit of paranoia that we check against the vector limit,
// not any previous value...
options = new OptionBuilder().setRowCountLimit(ValueVector.MAX_ROW_COUNT + 1).setRowCountLimit(TEST_ROW_LIMIT).build();
assertEquals(TEST_ROW_LIMIT, options.rowCountLimit);
options = new OptionBuilder().setRowCountLimit(TEST_ROW_LIMIT).setRowCountLimit(ValueVector.MAX_ROW_COUNT + 1).build();
assertEquals(ValueVector.MAX_ROW_COUNT, options.rowCountLimit);
// Can't set the limit lower than 1
options = new OptionBuilder().setRowCountLimit(0).build();
assertEquals(1, options.rowCountLimit);
// Do load with a (valid) limit lower than the default.
options = new OptionBuilder().setRowCountLimit(TEST_ROW_LIMIT).build();
ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
assertEquals(TEST_ROW_LIMIT, rsLoader.targetRowCount());
RowSetLoader rootWriter = rsLoader.writer();
rootWriter.addColumn(SchemaBuilder.columnSchema("s", MinorType.VARCHAR, DataMode.REQUIRED));
rsLoader.startBatch();
int count = fillToLimit(rootWriter);
assertEquals(TEST_ROW_LIMIT, count);
assertEquals(count, rootWriter.rowCount());
// Should fail to write beyond the row limit
assertFalse(rootWriter.start());
try {
rootWriter.save();
fail();
} catch (IllegalStateException e) {
// Expected
}
rsLoader.harvest().clear();
rsLoader.startBatch();
assertEquals(0, rootWriter.rowCount());
rsLoader.close();
}
use of org.apache.drill.exec.physical.rowSet.RowSetLoader in project drill by axbaretto.
the class TestResultSetLoaderMapArray method testCloseWithoutHarvest.
/**
* Test that memory is released if the loader is closed with an active
* batch (that is, before the batch is harvested.)
*/
@Test
public void testCloseWithoutHarvest() {
TupleMetadata schema = new SchemaBuilder().addMapArray("m").add("a", MinorType.INT).add("b", MinorType.VARCHAR).resumeSchema().buildSchema();
ResultSetLoaderImpl.ResultSetOptions options = new OptionBuilder().setSchema(schema).setRowCountLimit(ValueVector.MAX_ROW_COUNT).build();
ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
RowSetLoader rootWriter = rsLoader.writer();
ArrayWriter maWriter = rootWriter.array("m");
TupleWriter mWriter = maWriter.tuple();
rsLoader.startBatch();
for (int i = 0; i < 40; i++) {
rootWriter.start();
for (int j = 0; j < 3; j++) {
mWriter.scalar("a").setInt(i);
mWriter.scalar("b").setString("b-" + i);
maWriter.save();
}
rootWriter.save();
}
// Don't harvest the batch. Allocator will complain if the
// loader does not release memory.
rsLoader.close();
}
use of org.apache.drill.exec.physical.rowSet.RowSetLoader in project drill by axbaretto.
the class TestResultSetLoaderMapArray method testOmittedValues.
/**
* Check that the "fill-empties" logic descends down into
* a repeated map.
*/
@Test
public void testOmittedValues() {
TupleMetadata schema = new SchemaBuilder().add("id", MinorType.INT).addMapArray("m").addNullable("a", MinorType.INT).addNullable("b", MinorType.VARCHAR).resumeSchema().buildSchema();
ResultSetLoaderImpl.ResultSetOptions options = new OptionBuilder().setSchema(schema).setRowCountLimit(ValueVector.MAX_ROW_COUNT).build();
ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
RowSetLoader rootWriter = rsLoader.writer();
int mapSkip = 5;
int entrySkip = 3;
int rowCount = 1000;
int entryCount = 10;
rsLoader.startBatch();
ArrayWriter maWriter = rootWriter.array("m");
TupleWriter mWriter = maWriter.tuple();
for (int i = 0; i < rowCount; i++) {
rootWriter.start();
rootWriter.scalar(0).setInt(i);
if (i % mapSkip != 0) {
for (int j = 0; j < entryCount; j++) {
if (j % entrySkip != 0) {
mWriter.scalar(0).setInt(i * entryCount + j);
mWriter.scalar(1).setString("b-" + i + "." + j);
}
maWriter.save();
}
}
rootWriter.save();
}
RowSet result = fixture.wrap(rsLoader.harvest());
assertEquals(rowCount, result.rowCount());
RowSetReader reader = result.reader();
ArrayReader maReader = reader.array("m");
TupleReader mReader = maReader.tuple();
for (int i = 0; i < rowCount; i++) {
assertTrue(reader.next());
assertEquals(i, reader.scalar(0).getInt());
if (i % mapSkip == 0) {
assertEquals(0, maReader.size());
continue;
}
assertEquals(entryCount, maReader.size());
for (int j = 0; j < entryCount; j++) {
maReader.setPosn(j);
if (j % entrySkip == 0) {
assertTrue(mReader.scalar(0).isNull());
assertTrue(mReader.scalar(1).isNull());
} else {
assertFalse(mReader.scalar(0).isNull());
assertFalse(mReader.scalar(1).isNull());
assertEquals(i * entryCount + j, mReader.scalar(0).getInt());
assertEquals("b-" + i + "." + j, mReader.scalar(1).getString());
}
}
}
result.clear();
rsLoader.close();
}
use of org.apache.drill.exec.physical.rowSet.RowSetLoader in project drill by axbaretto.
the class TestResultSetLoaderMapArray method testDoubleNestedArray.
/**
* Test a doubly-nested arrays of maps.
*/
@Test
public void testDoubleNestedArray() {
TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMapArray("m1").add("b", MinorType.INT).addMapArray("m2").add("c", MinorType.INT).addArray("d", MinorType.VARCHAR).resumeMap().resumeSchema().buildSchema();
ResultSetLoaderImpl.ResultSetOptions options = new OptionBuilder().setSchema(schema).build();
ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
RowSetLoader rootWriter = rsLoader.writer();
rsLoader.startBatch();
ScalarWriter aWriter = rootWriter.scalar("a");
ArrayWriter a1Writer = rootWriter.array("m1");
TupleWriter m1Writer = a1Writer.tuple();
ScalarWriter bWriter = m1Writer.scalar("b");
ArrayWriter a2Writer = m1Writer.array("m2");
TupleWriter m2Writer = a2Writer.tuple();
ScalarWriter cWriter = m2Writer.scalar("c");
ScalarWriter dWriter = m2Writer.array("d").scalar();
for (int i = 0; i < 5; i++) {
rootWriter.start();
aWriter.setInt(i);
for (int j = 0; j < 4; j++) {
int a1Key = i + 10 + j;
bWriter.setInt(a1Key);
for (int k = 0; k < 3; k++) {
int a2Key = a1Key * 10 + k;
cWriter.setInt(a2Key);
for (int l = 0; l < 2; l++) {
dWriter.setString("d-" + (a2Key * 10 + l));
}
a2Writer.save();
}
a1Writer.save();
}
rootWriter.save();
}
RowSet results = fixture.wrap(rsLoader.harvest());
RowSetReader reader = results.reader();
ScalarReader aReader = reader.scalar("a");
ArrayReader a1Reader = reader.array("m1");
TupleReader m1Reader = a1Reader.tuple();
ScalarReader bReader = m1Reader.scalar("b");
ArrayReader a2Reader = m1Reader.array("m2");
TupleReader m2Reader = a2Reader.tuple();
ScalarReader cReader = m2Reader.scalar("c");
ScalarElementReader dReader = m2Reader.elements("d");
for (int i = 0; i < 5; i++) {
reader.next();
assertEquals(i, aReader.getInt());
for (int j = 0; j < 4; j++) {
a1Reader.setPosn(j);
int a1Key = i + 10 + j;
assertEquals(a1Key, bReader.getInt());
for (int k = 0; k < 3; k++) {
a2Reader.setPosn(k);
int a2Key = a1Key * 10 + k;
assertEquals(a2Key, cReader.getInt());
for (int l = 0; l < 2; l++) {
assertEquals("d-" + (a2Key * 10 + l), dReader.getString(l));
}
}
}
}
rsLoader.close();
}
use of org.apache.drill.exec.physical.rowSet.RowSetLoader in project drill by axbaretto.
the class TestResultSetLoaderMaps method testNestedMapsRequired.
/**
* Create nested maps. Then, add columns to each map
* on the fly. Use required, variable-width columns since
* those require the most processing and are most likely to
* fail if anything is out of place.
*/
@Test
public void testNestedMapsRequired() {
TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMap("m1").add("b", MinorType.VARCHAR).addMap("m2").add("c", MinorType.VARCHAR).resumeMap().resumeSchema().buildSchema();
ResultSetLoaderImpl.ResultSetOptions options = new OptionBuilder().setSchema(schema).build();
ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
assertEquals(5, rsLoader.schemaVersion());
RowSetLoader rootWriter = rsLoader.writer();
rsLoader.startBatch();
rootWriter.addRow(10, objArray("b1", objArray("c1")));
// Validate first batch
RowSet actual = fixture.wrap(rsLoader.harvest());
assertEquals(5, rsLoader.schemaVersion());
SingleRowSet expected = fixture.rowSetBuilder(schema).addRow(10, objArray("b1", objArray("c1"))).build();
new RowSetComparison(expected).verifyAndClearAll(actual);
// Now add columns in the second batch.
rsLoader.startBatch();
rootWriter.addRow(20, objArray("b2", objArray("c2")));
TupleWriter m1Writer = rootWriter.tuple("m1");
m1Writer.addColumn(SchemaBuilder.columnSchema("d", MinorType.VARCHAR, DataMode.REQUIRED));
TupleWriter m2Writer = m1Writer.tuple("m2");
m2Writer.addColumn(SchemaBuilder.columnSchema("e", MinorType.VARCHAR, DataMode.REQUIRED));
rootWriter.addRow(30, objArray("b3", objArray("c3", "e3"), "d3"));
// And another set while the write proceeds.
m1Writer.addColumn(SchemaBuilder.columnSchema("f", MinorType.VARCHAR, DataMode.REQUIRED));
m2Writer.addColumn(SchemaBuilder.columnSchema("g", MinorType.VARCHAR, DataMode.REQUIRED));
rootWriter.addRow(40, objArray("b4", objArray("c4", "e4", "g4"), "d4", "e4"));
// Validate second batch
actual = fixture.wrap(rsLoader.harvest());
assertEquals(9, rsLoader.schemaVersion());
TupleMetadata expectedSchema = new SchemaBuilder().add("a", MinorType.INT).addMap("m1").add("b", MinorType.VARCHAR).addMap("m2").add("c", MinorType.VARCHAR).add("e", MinorType.VARCHAR).add("g", MinorType.VARCHAR).resumeMap().add("d", MinorType.VARCHAR).add("f", MinorType.VARCHAR).resumeSchema().buildSchema();
expected = fixture.rowSetBuilder(expectedSchema).addRow(20, objArray("b2", objArray("c2", "", ""), "", "")).addRow(30, objArray("b3", objArray("c3", "e3", ""), "d3", "")).addRow(40, objArray("b4", objArray("c4", "e4", "g4"), "d4", "e4")).build();
new RowSetComparison(expected).verifyAndClearAll(actual);
rsLoader.close();
}
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