Examples with RelDataTypeFactory org.apache.calcite.rel.type.RelDataTypeFactory used on opensource projects

Example 36 with RelDataTypeFactory

use of org.apache.calcite.rel.type.RelDataTypeFactory in project calcite by apache.

the class RexSubQuery method exists.

/**
 * Creates an EXISTS sub-query.
 */
public static RexSubQuery exists(RelNode rel) {
    final RelDataTypeFactory typeFactory = rel.getCluster().getTypeFactory();
    final RelDataType type = typeFactory.createSqlType(SqlTypeName.BOOLEAN);
    return new RexSubQuery(type, SqlStdOperatorTable.EXISTS, ImmutableList.<RexNode>of(), rel);
}

Example 37 with RelDataTypeFactory

use of org.apache.calcite.rel.type.RelDataTypeFactory in project calcite by apache.

the class RexSubQuery method scalar.

/**
 * Creates a scalar sub-query.
 */
public static RexSubQuery scalar(RelNode rel) {
    final List<RelDataTypeField> fieldList = rel.getRowType().getFieldList();
    assert fieldList.size() == 1;
    final RelDataTypeFactory typeFactory = rel.getCluster().getTypeFactory();
    final RelDataType type = typeFactory.createTypeWithNullability(fieldList.get(0).getType(), true);
    return new RexSubQuery(type, SqlStdOperatorTable.SCALAR_QUERY, ImmutableList.<RexNode>of(), rel);
}

Example 38 with RelDataTypeFactory

use of org.apache.calcite.rel.type.RelDataTypeFactory in project calcite by apache.

the class RexSubQuery method type.

static RelDataType type(RelNode rel, ImmutableList<RexNode> nodes) {
    assert rel.getRowType().getFieldCount() == nodes.size();
    final RelDataTypeFactory typeFactory = rel.getCluster().getTypeFactory();
    boolean nullable = false;
    for (RexNode node : nodes) {
        if (node.getType().isNullable()) {
            nullable = true;
        }
    }
    for (RelDataTypeField field : rel.getRowType().getFieldList()) {
        if (field.getType().isNullable()) {
            nullable = true;
        }
    }
    return typeFactory.createTypeWithNullability(typeFactory.createSqlType(SqlTypeName.BOOLEAN), nullable);
}

Example 39 with RelDataTypeFactory

use of org.apache.calcite.rel.type.RelDataTypeFactory in project calcite by apache.

the class SqlDataTypeSpec method deriveType.

/**
 * Throws an error if the type is not built-in.
 */
public RelDataType deriveType(SqlValidator validator) {
    String name = typeName.getSimple();
    // for now we only support builtin datatypes
    if (SqlTypeName.get(name) == null) {
        throw validator.newValidationError(this, RESOURCE.unknownDatatypeName(name));
    }
    if (null != collectionsTypeName) {
        final String collectionName = collectionsTypeName.getSimple();
        if (SqlTypeName.get(collectionName) == null) {
            throw validator.newValidationError(this, RESOURCE.unknownDatatypeName(collectionName));
        }
    }
    RelDataTypeFactory typeFactory = validator.getTypeFactory();
    return deriveType(typeFactory);
}

Example 40 with RelDataTypeFactory

use of org.apache.calcite.rel.type.RelDataTypeFactory in project calcite by apache.

the class RelOptUtilTest method testTypeDump.

// ~ Methods ----------------------------------------------------------------
@Test
public void testTypeDump() {
    RelDataTypeFactory typeFactory = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
    RelDataType t1 = typeFactory.builder().add("f0", SqlTypeName.DECIMAL, 5, 2).add("f1", SqlTypeName.VARCHAR, 10).build();
    TestUtil.assertEqualsVerbose(TestUtil.fold("f0 DECIMAL(5, 2) NOT NULL,", "f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL"), Util.toLinux(RelOptUtil.dumpType(t1) + "\n"));
    RelDataType t2 = typeFactory.builder().add("f0", t1).add("f1", typeFactory.createMultisetType(t1, -1)).build();
    TestUtil.assertEqualsVerbose(TestUtil.fold("f0 RECORD (", "  f0 DECIMAL(5, 2) NOT NULL,", "  f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL) NOT NULL,", "f1 RECORD (", "  f0 DECIMAL(5, 2) NOT NULL,", "  f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL) NOT NULL MULTISET NOT NULL"), Util.toLinux(RelOptUtil.dumpType(t2) + "\n"));
}