Examples with PrestoThriftColumnMetadata io.prestosql.plugin.thrift.api.PrestoThriftColumnMetadata used on opensource projects

Example 1 with PrestoThriftColumnMetadata

use of io.prestosql.plugin.thrift.api.PrestoThriftColumnMetadata in project hetu-core by openlookeng.

the class ThriftTpchService method getTableMetadata.

@Override
public final PrestoThriftNullableTableMetadata getTableMetadata(PrestoThriftSchemaTableName schemaTableName) {
    String schemaName = schemaTableName.getSchemaName();
    String tableName = schemaTableName.getTableName();
    if (!SCHEMAS.contains(schemaName) || TpchTable.getTables().stream().noneMatch(table -> table.getTableName().equals(tableName))) {
        return new PrestoThriftNullableTableMetadata(null);
    }
    TpchTable<?> tpchTable = TpchTable.getTable(schemaTableName.getTableName());
    List<PrestoThriftColumnMetadata> columns = new ArrayList<>();
    for (TpchColumn<? extends TpchEntity> column : tpchTable.getColumns()) {
        columns.add(new PrestoThriftColumnMetadata(column.getSimplifiedColumnName(), getTypeString(column), null, false));
    }
    List<Set<String>> indexableKeys = getIndexableKeys(schemaName, tableName);
    return new PrestoThriftNullableTableMetadata(new PrestoThriftTableMetadata(schemaTableName, columns, null, !indexableKeys.isEmpty() ? indexableKeys : null));
}