Examples with ColumnMetadata org.apache.drill.exec.proto.UserProtos.ColumnMetadata used on opensource projects

Example 6 with ColumnMetadata

use of org.apache.drill.exec.proto.UserProtos.ColumnMetadata in project drill by axbaretto.

the class TestMetadataProvider method columnsWithColumnNameFilter.

@Test
public void columnsWithColumnNameFilter() throws Exception {
    // test("SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE COLUMN_NAME LIKE '%\\_p%' ESCAPE '\\'"); // SQL equivalent
    GetColumnsResp resp = client.getColumns(null, null, null, LikeFilter.newBuilder().setPattern("%\\_p%").setEscape("\\").build()).get();
    assertEquals(RequestStatus.OK, resp.getStatus());
    List<ColumnMetadata> columns = resp.getColumnsList();
    assertEquals(5, columns.size());
    verifyColumn("sys", "drillbits", "user_port", columns);
    verifyColumn("sys", "drillbits", "control_port", columns);
    verifyColumn("sys", "drillbits", "data_port", columns);
    verifyColumn("sys", "memory", "user_port", columns);
    verifyColumn("sys", "threads", "user_port", columns);
}

Example 7 with ColumnMetadata

use of org.apache.drill.exec.proto.UserProtos.ColumnMetadata in project drill by axbaretto.

the class TestMetadataProvider method columns.

@Test
public void columns() throws Exception {
    // test("SELECT * FROM INFORMATION_SCHEMA.COLUMNS"); // SQL equivalent
    GetColumnsResp resp = client.getColumns(null, null, null, null).get();
    assertEquals(RequestStatus.OK, resp.getStatus());
    List<ColumnMetadata> columns = resp.getColumnsList();
    assertEquals(117, columns.size());
// too many records to verify the output.
}

Example 8 with ColumnMetadata

use of org.apache.drill.exec.proto.UserProtos.ColumnMetadata in project drill by axbaretto.

the class TestMetadataProvider method columnsWithColumnNameFilterAndTableNameFilter.

@Test
public void columnsWithColumnNameFilterAndTableNameFilter() throws Exception {
    // test("SELECT * FROM INFORMATION_SCHEMA.COLUMNS
    // WHERE TABLE_NAME LIKE '%bits' AND COLUMN_NAME LIKE '%\\_p%' ESCAPE '\\'"); // SQL equivalent
    GetColumnsResp resp = client.getColumns(null, null, LikeFilter.newBuilder().setPattern("%bits").build(), LikeFilter.newBuilder().setPattern("%\\_p%").setEscape("\\").build()).get();
    assertEquals(RequestStatus.OK, resp.getStatus());
    List<ColumnMetadata> columns = resp.getColumnsList();
    assertEquals(3, columns.size());
    verifyColumn("sys", "drillbits", "user_port", columns);
    verifyColumn("sys", "drillbits", "control_port", columns);
    verifyColumn("sys", "drillbits", "data_port", columns);
}

Example 9 with ColumnMetadata

use of org.apache.drill.exec.proto.UserProtos.ColumnMetadata in project drill by axbaretto.

the class TestMetadataProvider method columnsWithAllSupportedFilters.

@Test
public void columnsWithAllSupportedFilters() throws Exception {
    // test("SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE " +
    // "TABLE_CATALOG LIKE '%ILL' AND TABLE_SCHEMA LIKE 'sys' AND " +
    // "TABLE_NAME LIKE '%bits' AND COLUMN_NAME LIKE '%\\_p%' ESCAPE '\\'"); // SQL equivalent
    GetColumnsResp resp = client.getColumns(LikeFilter.newBuilder().setPattern("%ILL").build(), LikeFilter.newBuilder().setPattern("sys").build(), LikeFilter.newBuilder().setPattern("%bits").build(), LikeFilter.newBuilder().setPattern("%\\_p%").setEscape("\\").build()).get();
    assertEquals(RequestStatus.OK, resp.getStatus());
    List<ColumnMetadata> columns = resp.getColumnsList();
    assertEquals(3, columns.size());
    verifyColumn("sys", "drillbits", "user_port", columns);
    verifyColumn("sys", "drillbits", "control_port", columns);
    verifyColumn("sys", "drillbits", "data_port", columns);
}

Example 10 with ColumnMetadata

use of org.apache.drill.exec.proto.UserProtos.ColumnMetadata in project drill by apache.

the class DrillMetaImpl method serverGetColumns.

private MetaResultSet serverGetColumns(String catalog, Pat schemaPattern, Pat tableNamePattern, Pat columnNamePattern) {
    final LikeFilter catalogNameFilter = newLikeFilter(quote(catalog));
    final LikeFilter schemaNameFilter = newLikeFilter(schemaPattern);
    final LikeFilter tableNameFilter = newLikeFilter(tableNamePattern);
    final LikeFilter columnNameFilter = newLikeFilter(columnNamePattern);
    return new MetadataAdapter<MetaColumn, GetColumnsResp, ColumnMetadata>(MetaColumn.class) {

        @Override
        protected RequestStatus getStatus(GetColumnsResp response) {
            return response.getStatus();
        }

        @Override
        protected DrillPBError getError(GetColumnsResp response) {
            return response.getError();
        }

        @Override
        protected List<ColumnMetadata> getResult(GetColumnsResp response) {
            return response.getColumnsList();
        }

        private int getDataType(ColumnMetadata value) {
            switch(value.getDataType()) {
                case "ARRAY":
                    return Types.ARRAY;
                case "BIGINT":
                    return Types.BIGINT;
                case "BINARY":
                    return Types.BINARY;
                case "BINARY LARGE OBJECT":
                    return Types.BLOB;
                case "BINARY VARYING":
                    return Types.VARBINARY;
                case "BIT":
                    return Types.BIT;
                case "BOOLEAN":
                    return Types.BOOLEAN;
                case "CHARACTER":
                    return Types.CHAR;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "CHARACTER LARGE OBJECT":
                    return Types.CLOB;
                case "CHARACTER VARYING":
                    return Types.VARCHAR;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "DATALINK":
                    return Types.DATALINK;
                case "DATE":
                    return Types.DATE;
                case "DECIMAL":
                    return Types.DECIMAL;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "DISTINCT":
                    return Types.DISTINCT;
                case "DOUBLE":
                case "DOUBLE PRECISION":
                    return Types.DOUBLE;
                case "FLOAT":
                    return Types.FLOAT;
                case "INTEGER":
                    return Types.INTEGER;
                case "INTERVAL":
                    return Types.OTHER;
                // Resolve: Not seen in Drill yet. Can it ever appear?:
                case "JAVA_OBJECT":
                    return Types.JAVA_OBJECT;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "LONGNVARCHAR":
                    return Types.LONGNVARCHAR;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "LONGVARBINARY":
                    return Types.LONGVARBINARY;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "LONGVARCHAR":
                    return Types.LONGVARCHAR;
                case "MAP":
                    return Types.OTHER;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "NATIONAL CHARACTER":
                    return Types.NCHAR;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "NATIONAL CHARACTER LARGE OBJECT":
                    return Types.NCLOB;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "NATIONAL CHARACTER VARYING":
                    return Types.NVARCHAR;
                // mapping.
                case "NULL":
                    return Types.NULL;
                // (No NUMERIC--Drill seems to map any to DECIMAL currently.)
                case "NUMERIC":
                    return Types.NUMERIC;
                // Resolve: Unexpectedly, has appeared in Drill. Should it?
                case "OTHER":
                    return Types.OTHER;
                case "REAL":
                    return Types.REAL;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "REF":
                    return Types.REF;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "ROWID":
                    return Types.ROWID;
                case "SMALLINT":
                    return Types.SMALLINT;
                // Resolve: Not seen in Drill yet. Can it appear?:
                case "SQLXML":
                    return Types.SQLXML;
                case "STRUCT":
                    return Types.STRUCT;
                case "TIME":
                    return Types.TIME;
                case "TIMESTAMP":
                    return Types.TIMESTAMP;
                case "TINYINT":
                    return Types.TINYINT;
                default:
                    return Types.OTHER;
            }
        }

        Integer getDecimalDigits(ColumnMetadata value) {
            switch(value.getDataType()) {
                case "TINYINT":
                case "SMALLINT":
                case "INTEGER":
                case "BIGINT":
                case "DECIMAL":
                case "NUMERIC":
                    return value.hasNumericScale() ? value.getNumericScale() : null;
                case "REAL":
                    return DECIMAL_DIGITS_REAL;
                case "FLOAT":
                    return DECIMAL_DIGITS_FLOAT;
                case "DOUBLE":
                    return DECIMAL_DIGITS_DOUBLE;
                case "DATE":
                case "TIME":
                case "TIMESTAMP":
                case "INTERVAL":
                    return value.getDateTimePrecision();
                default:
                    return null;
            }
        }

        private Integer getNumPrecRadix(ColumnMetadata value) {
            switch(value.getDataType()) {
                case "TINYINT":
                case "SMALLINT":
                case "INTEGER":
                case "BIGINT":
                case "DECIMAL":
                case "NUMERIC":
                case "REAL":
                case "FLOAT":
                case "DOUBLE":
                    return value.getNumericPrecisionRadix();
                case "INTERVAL":
                    return RADIX_INTERVAL;
                case "DATE":
                case "TIME":
                case "TIMESTAMP":
                    return RADIX_DATETIME;
                default:
                    return null;
            }
        }

        private int getNullable(ColumnMetadata value) {
            if (!value.hasIsNullable()) {
                return DatabaseMetaData.columnNullableUnknown;
            }
            return value.getIsNullable() ? DatabaseMetaData.columnNullable : DatabaseMetaData.columnNoNulls;
        }

        private String getIsNullable(ColumnMetadata value) {
            if (!value.hasIsNullable()) {
                return "";
            }
            return value.getIsNullable() ? "YES" : "NO";
        }

        private Integer getCharOctetLength(ColumnMetadata value) {
            if (!value.hasCharMaxLength()) {
                return null;
            }
            switch(value.getDataType()) {
                case "CHARACTER":
                case "CHARACTER LARGE OBJECT":
                case "CHARACTER VARYING":
                case "LONGVARCHAR":
                case "LONGNVARCHAR":
                case "NATIONAL CHARACTER":
                case "NATIONAL CHARACTER LARGE OBJECT":
                case "NATIONAL CHARACTER VARYING":
                    return value.getCharOctetLength();
                default:
                    return null;
            }
        }

        @Override
        protected MetaColumn adapt(ColumnMetadata value) {
            return new MetaColumn(value.getCatalogName(), value.getSchemaName(), value.getTableName(), value.getColumnName(), // It might require the full SQL type
            getDataType(value), value.getDataType(), value.getColumnSize(), getDecimalDigits(value), getNumPrecRadix(value), getNullable(value), getCharOctetLength(value), value.getOrdinalPosition(), getIsNullable(value));
        }
    }.getMeta(connection.getClient().getColumns(catalogNameFilter, schemaNameFilter, tableNameFilter, columnNameFilter));
}