Examples with TupleDomain com.facebook.presto.common.predicate.TupleDomain used on opensource projects

Example 76 with TupleDomain

use of com.facebook.presto.common.predicate.TupleDomain in project presto by prestodb.

the class ShardMetadataRecordCursor method getTableIds.

@VisibleForTesting
static Iterator<Long> getTableIds(IDBI dbi, TupleDomain<Integer> tupleDomain) {
    Map<Integer, Domain> domains = tupleDomain.getDomains().get();
    Domain schemaNameDomain = domains.get(getColumnIndex(SHARD_METADATA, SCHEMA_NAME));
    Domain tableNameDomain = domains.get(getColumnIndex(SHARD_METADATA, TABLE_NAME));
    List<String> values = new ArrayList<>();
    StringBuilder sql = new StringBuilder("SELECT table_id FROM tables ");
    if (schemaNameDomain != null || tableNameDomain != null) {
        sql.append("WHERE ");
        List<String> predicates = new ArrayList<>();
        if (tableNameDomain != null && tableNameDomain.isSingleValue()) {
            predicates.add("table_name = ?");
            values.add(getStringValue(tableNameDomain.getSingleValue()));
        }
        if (schemaNameDomain != null && schemaNameDomain.isSingleValue()) {
            predicates.add("schema_name = ?");
            values.add(getStringValue(schemaNameDomain.getSingleValue()));
        }
        sql.append(Joiner.on(" AND ").join(predicates));
    }
    ImmutableList.Builder<Long> tableIds = ImmutableList.builder();
    try (Connection connection = dbi.open().getConnection();
        PreparedStatement statement = connection.prepareStatement(sql.toString())) {
        for (int i = 0; i < values.size(); i++) {
            statement.setString(i + 1, values.get(i));
        }
        try (ResultSet resultSet = statement.executeQuery()) {
            while (resultSet.next()) {
                tableIds.add(resultSet.getLong("table_id"));
            }
        }
    } catch (SQLException | DBIException e) {
        throw metadataError(e);
    }
    return tableIds.build().iterator();
}