Examples with TableWriter io.questdb.cairo.TableWriter used on opensource projects

Example 61 with TableWriter

use of io.questdb.cairo.TableWriter in project questdb by bluestreak01.

the class FirstIntGroupByFunctionFactoryTest method testFirstNull.

@Test
public void testFirstNull() throws SqlException {
    compiler.compile("create table tab (f int)", sqlExecutionContext);
    try (TableWriter w = engine.getWriter(sqlExecutionContext.getCairoSecurityContext(), "tab", "testing")) {
        TableWriter.Row r = w.newRow();
        r.append();
        for (int i = 100; i > 10; i--) {
            r = w.newRow();
            r.putInt(0, i);
            r.append();
        }
        w.commit();
    }
    try (RecordCursorFactory factory = compiler.compile("select first(f) from tab", sqlExecutionContext).getRecordCursorFactory()) {
        try (RecordCursor cursor = factory.getCursor(sqlExecutionContext)) {
            Record record = cursor.getRecord();
            Assert.assertEquals(1, cursor.size());
            Assert.assertTrue(cursor.hasNext());
            Assert.assertEquals(Numbers.INT_NaN, record.getInt(0));
        }
    }
}

Example 62 with TableWriter

use of io.questdb.cairo.TableWriter in project questdb by bluestreak01.

the class LastDateGroupByFunctionFactoryTest method testSomeNull.

@Test
public void testSomeNull() throws SqlException {
    compiler.compile("create table tab (f date)", sqlExecutionContext);
    try (TableWriter w = engine.getWriter(sqlExecutionContext.getCairoSecurityContext(), "tab", "testing")) {
        for (int i = 100; i > 10; i--) {
            TableWriter.Row r = w.newRow();
            if (i % 4 == 0) {
                r.putLong(0, i);
            }
            r.append();
        }
        w.commit();
    }
    try (RecordCursorFactory factory = compiler.compile("select last(f) from tab", sqlExecutionContext).getRecordCursorFactory()) {
        try (RecordCursor cursor = factory.getCursor(sqlExecutionContext)) {
            Record record = cursor.getRecord();
            Assert.assertEquals(1, cursor.size());
            Assert.assertTrue(cursor.hasNext());
            Assert.assertEquals(Numbers.LONG_NaN, record.getDate(0));
        }
    }
}

Example 63 with TableWriter

use of io.questdb.cairo.TableWriter in project questdb by bluestreak01.

the class LastDateGroupByFunctionFactoryTest method testNonNull.

@Test
public void testNonNull() throws SqlException {
    compiler.compile("create table tab (f date)", sqlExecutionContext);
    final Rnd rnd = new Rnd();
    try (TableWriter w = engine.getWriter(sqlExecutionContext.getCairoSecurityContext(), "tab", "testing")) {
        for (int i = 100; i > 10; i--) {
            TableWriter.Row r = w.newRow();
            r.putLong(0, rnd.nextLong());
            r.append();
        }
        w.commit();
    }
    try (RecordCursorFactory factory = compiler.compile("select last(f) from tab", sqlExecutionContext).getRecordCursorFactory()) {
        try (RecordCursor cursor = factory.getCursor(sqlExecutionContext)) {
            Record record = cursor.getRecord();
            Assert.assertEquals(1, cursor.size());
            Assert.assertTrue(cursor.hasNext());
            Assert.assertEquals(-6919361415374675248L, record.getLong(0));
        }
    }
}

Example 64 with TableWriter

use of io.questdb.cairo.TableWriter in project questdb by bluestreak01.

the class LastDateGroupByFunctionFactoryTest method testAllNull.

@Test
public void testAllNull() throws SqlException {
    compiler.compile("create table tab (f date)", sqlExecutionContext);
    try (TableWriter w = engine.getWriter(sqlExecutionContext.getCairoSecurityContext(), "tab", "testing")) {
        for (int i = 100; i > 10; i--) {
            TableWriter.Row r = w.newRow();
            r.append();
        }
        w.commit();
    }
    try (RecordCursorFactory factory = compiler.compile("select last(f) from tab", sqlExecutionContext).getRecordCursorFactory()) {
        try (RecordCursor cursor = factory.getCursor(sqlExecutionContext)) {
            Record record = cursor.getRecord();
            Assert.assertEquals(1, cursor.size());
            Assert.assertTrue(cursor.hasNext());
            Assert.assertEquals(Numbers.LONG_NaN, record.getLong(0));
        }
    }
}

Example 65 with TableWriter

use of io.questdb.cairo.TableWriter in project questdb by bluestreak01.

the class GeoHashQueryTest method testDirectWriteEmpty.

@Test
public void testDirectWriteEmpty() throws Exception {
    assertMemoryLeak(() -> {
        compiler.compile("create table t1 as (select " + "rnd_geohash(5) geo1," + "rnd_geohash(15) geo2," + "rnd_geohash(20) geo4," + "rnd_geohash(40) geo8," + "x " + "from long_sequence(0))", sqlExecutionContext);
        try (TableWriter writer = engine.getWriter(AllowAllCairoSecurityContext.INSTANCE, "t1", "test")) {
            for (int i = 0; i < 2; i++) {
                TableWriter.Row row = writer.newRow();
                row.putGeoHash(4, i);
                row.append();
            }
            writer.commit();
        }
        assertSql("t1", "geo1\tgeo2\tgeo4\tgeo8\tx\n" + "\t\t\t\t0\n" + "\t\t\t\t1\n");
    });
}