Examples with SchemaProvider org.apache.drill.exec.record.metadata.schema.SchemaProvider used on opensource projects

Example 1 with SchemaProvider

use of org.apache.drill.exec.record.metadata.schema.SchemaProvider in project drill by apache.

the class TestSchemaCommands method testCreateWithoutColumns.

@Test
public void testCreateWithoutColumns() throws Exception {
    File tmpDir = dirTestWatcher.getTmpDir();
    File schemaFile = new File(tmpDir, "schema_for_create_without_columns.schema");
    assertFalse(schemaFile.exists());
    try {
        testBuilder().sqlQuery("create schema () " + "path '%s' " + "properties ('prop' = 'val')", schemaFile.getPath()).unOrdered().baselineColumns("ok", "summary").baselineValues(true, String.format("Created schema for [%s]", schemaFile.getPath())).go();
        SchemaProvider schemaProvider = new PathSchemaProvider(new Path(schemaFile.getPath()));
        assertTrue(schemaProvider.exists());
        SchemaContainer schemaContainer = schemaProvider.read();
        assertNull(schemaContainer.getTable());
        TupleMetadata schema = schemaContainer.getSchema();
        assertNotNull(schema);
        assertTrue(schema.isEmpty());
        assertEquals("val", schema.property("prop"));
    } finally {
        FileUtils.deleteQuietly(schemaFile);
    }
}

Example 2 with SchemaProvider

use of org.apache.drill.exec.record.metadata.schema.SchemaProvider in project drill by apache.

the class TestSchemaCommands method testAlterReplace.

@Test
public void testAlterReplace() throws Exception {
    File tmpDir = dirTestWatcher.getTmpDir();
    File schemaFile = new File(tmpDir, "alter_schema_replace_success.schema");
    assertFalse(schemaFile.exists());
    try {
        run("create schema (col1 int, col2 int) path '%s' " + "properties ('prop1' = 'a', 'prop2' = 'b')", schemaFile.getPath());
        testBuilder().sqlQuery("alter schema path '%s' add or replace " + "columns (col2 varchar, col3 boolean) " + "properties ('prop2' = 'd', 'prop3' = 'c')", schemaFile.getPath()).unOrdered().baselineColumns("ok", "summary").baselineValues(true, String.format("Schema for [%s] was updated", schemaFile.getPath())).go();
        SchemaProvider schemaProvider = new PathSchemaProvider(new Path(schemaFile.getPath()));
        TupleMetadata schema = schemaProvider.read().getSchema();
        assertEquals(3, schema.size());
        assertEquals("col1", schema.fullName(0));
        assertEquals("col2", schema.fullName(1));
        assertEquals(TypeProtos.MinorType.VARCHAR, schema.metadata("col2").type());
        assertEquals("col3", schema.fullName(2));
        Map<String, String> expectedProperties = new HashMap<>();
        expectedProperties.put("prop1", "a");
        expectedProperties.put("prop2", "d");
        expectedProperties.put("prop3", "c");
        assertEquals(expectedProperties, schema.properties());
    } finally {
        FileUtils.deleteQuietly(schemaFile);
    }
}

Example 3 with SchemaProvider

use of org.apache.drill.exec.record.metadata.schema.SchemaProvider in project drill by apache.

the class TestSchemaCommands method testCreateWithSchemaProperties.

@Test
public void testCreateWithSchemaProperties() throws Exception {
    File tmpDir = dirTestWatcher.getTmpDir();
    File schemaFile = new File(tmpDir, "schema_for_create_with_properties.schema");
    assertFalse(schemaFile.exists());
    try {
        testBuilder().sqlQuery("create schema (i int not null) path '%s' " + "properties ('k1' = 'v1', 'k2' = 'v2', 'k3' = 'v3')", schemaFile.getPath()).unOrdered().baselineColumns("ok", "summary").baselineValues(true, String.format("Created schema for [%s]", schemaFile.getPath())).go();
        SchemaProvider schemaProvider = new PathSchemaProvider(new Path(schemaFile.getPath()));
        assertTrue(schemaProvider.exists());
        SchemaContainer schemaContainer = schemaProvider.read();
        assertNull(schemaContainer.getTable());
        TupleMetadata schema = schemaContainer.getSchema();
        assertNotNull(schema);
        Map<String, String> properties = new LinkedHashMap<>();
        properties.put("k1", "v1");
        properties.put("k2", "v2");
        properties.put("k3", "v3");
        assertEquals(properties.size(), schema.properties().size());
        assertEquals(properties, schema.properties());
    } finally {
        FileUtils.deleteQuietly(schemaFile);
    }
}

Example 4 with SchemaProvider

use of org.apache.drill.exec.record.metadata.schema.SchemaProvider in project drill by apache.

the class TestSchemaCommands method testCreateWithVariousColumnProperties.

@Test
public void testCreateWithVariousColumnProperties() throws Exception {
    File tmpDir = dirTestWatcher.getTmpDir();
    File schemaFile = new File(tmpDir, "schema_for_create_with_various_column_properties.schema");
    assertFalse(schemaFile.exists());
    try {
        testBuilder().sqlQuery("create schema ( " + "a int not null default '10', " + "b date format 'yyyy-MM-dd' default '2017-01-31', " + "c varchar properties {'k1' = 'v1', 'k2' = 'v2'}) " + "path '%s'", schemaFile.getPath()).unOrdered().baselineColumns("ok", "summary").baselineValues(true, String.format("Created schema for [%s]", schemaFile.getPath())).go();
        SchemaProvider schemaProvider = new PathSchemaProvider(new Path(schemaFile.getPath()));
        assertTrue(schemaProvider.exists());
        SchemaContainer schemaContainer = schemaProvider.read();
        assertNull(schemaContainer.getTable());
        TupleMetadata schema = schemaContainer.getSchema();
        assertNotNull(schema);
        assertEquals(3, schema.size());
        ColumnMetadata a = schema.metadata("a");
        assertTrue(a.decodeDefaultValue() instanceof Integer);
        assertEquals(10, a.decodeDefaultValue());
        assertEquals("10", a.defaultValue());
        ColumnMetadata b = schema.metadata("b");
        assertTrue(b.decodeDefaultValue() instanceof LocalDate);
        assertEquals("yyyy-MM-dd", b.format());
        assertEquals(LocalDate.parse("2017-01-31"), b.decodeDefaultValue());
        assertEquals("2017-01-31", b.defaultValue());
        ColumnMetadata c = schema.metadata("c");
        Map<String, String> properties = new LinkedHashMap<>();
        properties.put("k1", "v1");
        properties.put("k2", "v2");
        assertEquals(properties, c.properties());
        assertEquals(0, schema.properties().size());
    } finally {
        FileUtils.deleteQuietly(schemaFile);
    }
}

Example 5 with SchemaProvider

use of org.apache.drill.exec.record.metadata.schema.SchemaProvider in project drill by apache.

the class TestSchemaCommands method testDescribeDefault.

@Test
public void testDescribeDefault() throws Exception {
    String tableName = "table_describe_default";
    String table = String.format("dfs.tmp.%s", tableName);
    try {
        run("create table %s as select 'a' as c from (values(1))", table);
        run("create schema (col int) for table %s", table);
        File schemaFile = Paths.get(dirTestWatcher.getDfsTestTmpDir().getPath(), tableName, SchemaProvider.DEFAULT_SCHEMA_NAME).toFile();
        SchemaProvider schemaProvider = new PathSchemaProvider(new Path(schemaFile.getPath()));
        SchemaContainer schemaContainer = schemaProvider.read();
        String schema = PathSchemaProvider.WRITER.writeValueAsString(schemaContainer);
        testBuilder().sqlQuery("describe schema for table %s", table).unOrdered().baselineColumns("schema").baselineValues(schema).go();
        testBuilder().sqlQuery("describe schema for table %s", table).unOrdered().sqlBaselineQuery("desc schema for table %s", table).go();
    } finally {
        run("drop table if exists %s", table);
    }
}