Examples with SelectOperator org.apache.hadoop.hive.ql.exec.SelectOperator used on opensource projects

Example 1 with SelectOperator

use of org.apache.hadoop.hive.ql.exec.SelectOperator in project hive by apache.

the class TestColumnPrunerProcCtx method testGetSelectNestedColPathsFromChildren6.

// Test select abs(root.col1.b) from table test(root struct<col1:struct<a:boolean,b:double>,
// col2:double>);
@Test
public void testGetSelectNestedColPathsFromChildren6() {
    ColumnPrunerProcCtx ctx = new ColumnPrunerProcCtx(null);
    ExprNodeDesc colDesc = new ExprNodeColumnDesc(col3Type, "root", "test", false);
    ExprNodeDesc col1 = new ExprNodeFieldDesc(col1Type, colDesc, "col1", false);
    ExprNodeDesc fieldDesc = new ExprNodeFieldDesc(TypeInfoFactory.doubleTypeInfo, col1, "b", false);
    final List<FieldNode> paths = Arrays.asList(new FieldNode("_col0"));
    GenericUDF udf = mock(GenericUDFBridge.class);
    List<ExprNodeDesc> list = new ArrayList<>();
    list.add(fieldDesc);
    ExprNodeDesc funcDesc = new ExprNodeGenericFuncDesc(TypeInfoFactory.binaryTypeInfo, udf, "abs", list);
    SelectOperator selectOperator = buildSelectOperator(Arrays.asList(funcDesc), paths);
    List<FieldNode> groups = ctx.getSelectColsFromChildren(selectOperator, paths);
    compareTestResults(groups, "root.col1.b");
}

Example 2 with SelectOperator

use of org.apache.hadoop.hive.ql.exec.SelectOperator in project hive by apache.

the class TestColumnPrunerProcCtx method buildSelectOperator.

private SelectOperator buildSelectOperator(List<ExprNodeDesc> colList, List<FieldNode> outputCols) {
    SelectOperator selectOperator = mock(SelectOperator.class);
    SelectDesc selectDesc = new SelectDesc(colList, ColumnPrunerProcCtx.toColumnNames(outputCols));
    selectDesc.setSelStarNoCompute(false);
    when(selectOperator.getConf()).thenReturn(selectDesc);
    return selectOperator;
}

Example 3 with SelectOperator

use of org.apache.hadoop.hive.ql.exec.SelectOperator in project hive by apache.

the class TestColumnPrunerProcCtx method testGetSelectNestedColPathsFromChildren5.

// Test select named_struct from named_struct:struct<a:boolean,b:double>
@Test
public void testGetSelectNestedColPathsFromChildren5() {
    ColumnPrunerProcCtx ctx = new ColumnPrunerProcCtx(null);
    ExprNodeConstantDesc constADesc = new ExprNodeConstantDesc(TypeInfoFactory.booleanTypeInfo, "a");
    ExprNodeConstantDesc constBDesc = new ExprNodeConstantDesc(TypeInfoFactory.doubleTypeInfo, "b");
    List<ExprNodeDesc> list = new ArrayList<>();
    list.add(constADesc);
    list.add(constBDesc);
    GenericUDF udf = mock(GenericUDF.class);
    ExprNodeDesc funcDesc = new ExprNodeGenericFuncDesc(col1Type, udf, "named_struct", list);
    ExprNodeDesc fieldDesc = new ExprNodeFieldDesc(TypeInfoFactory.doubleTypeInfo, funcDesc, "foo", false);
    final List<FieldNode> paths = Arrays.asList(new FieldNode("_col0"));
    SelectOperator selectOperator = buildSelectOperator(Arrays.asList(fieldDesc), paths);
    List<FieldNode> groups = ctx.getSelectColsFromChildren(selectOperator, paths);
    // Return empty result since only constant Desc exists
    assertEquals(0, groups.size());
}

Example 4 with SelectOperator

use of org.apache.hadoop.hive.ql.exec.SelectOperator in project hive by apache.

the class TestColumnPrunerProcCtx method testGetSelectNestedColPathsFromChildren2.

// Test select root.col1 from root:struct<col1:struct<a:boolean,b:double>,col2:double>
@Test
public void testGetSelectNestedColPathsFromChildren2() {
    ColumnPrunerProcCtx ctx = new ColumnPrunerProcCtx(null);
    ExprNodeDesc colDesc = new ExprNodeColumnDesc(col3Type, "root", "test", false);
    ExprNodeDesc fieldDesc = new ExprNodeFieldDesc(col1Type, colDesc, "col1", false);
    final List<FieldNode> paths = Arrays.asList(new FieldNode("_col0"));
    SelectOperator selectOperator = buildSelectOperator(Arrays.asList(fieldDesc), paths);
    List<FieldNode> groups = ctx.getSelectColsFromChildren(selectOperator, paths);
    compareTestResults(groups, "root.col1");
}

Example 5 with SelectOperator

use of org.apache.hadoop.hive.ql.exec.SelectOperator in project hive by apache.

the class MapJoinProcessor method genSelectPlan.

protected void genSelectPlan(ParseContext pctx, MapJoinOperator input) throws SemanticException {
    List<Operator<? extends OperatorDesc>> childOps = input.getChildOperators();
    input.setChildOperators(null);
    // create a dummy select - This select is needed by the walker to split the
    // mapJoin later on
    RowSchema inputRS = input.getSchema();
    ArrayList<ExprNodeDesc> exprs = new ArrayList<ExprNodeDesc>();
    ArrayList<String> outputs = new ArrayList<String>();
    List<String> outputCols = input.getConf().getOutputColumnNames();
    ArrayList<ColumnInfo> outputRS = new ArrayList<ColumnInfo>();
    Map<String, ExprNodeDesc> colExprMap = new HashMap<String, ExprNodeDesc>();
    for (int i = 0; i < outputCols.size(); i++) {
        String internalName = outputCols.get(i);
        ColumnInfo valueInfo = inputRS.getColumnInfo(internalName);
        ExprNodeDesc colDesc = new ExprNodeColumnDesc(valueInfo.getType(), valueInfo.getInternalName(), valueInfo.getTabAlias(), valueInfo.getIsVirtualCol());
        exprs.add(colDesc);
        outputs.add(internalName);
        ColumnInfo newCol = new ColumnInfo(internalName, valueInfo.getType(), valueInfo.getTabAlias(), valueInfo.getIsVirtualCol(), valueInfo.isHiddenVirtualCol());
        newCol.setAlias(valueInfo.getAlias());
        outputRS.add(newCol);
        colExprMap.put(internalName, colDesc);
    }
    SelectDesc select = new SelectDesc(exprs, outputs, false);
    SelectOperator sel = (SelectOperator) OperatorFactory.getAndMakeChild(select, new RowSchema(outputRS), input);
    sel.setColumnExprMap(colExprMap);
    // Insert the select operator in between.
    sel.setChildOperators(childOps);
    for (Operator<? extends OperatorDesc> ch : childOps) {
        ch.replaceParent(input, sel);
    }
}