Examples with HiveJdbcConverter org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.jdbc.HiveJdbcConverter used on opensource projects

Example 11 with HiveJdbcConverter

use of org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.jdbc.HiveJdbcConverter in project hive by apache.

the class JDBCJoinPushDownRule method matches.

@Override
public boolean matches(RelOptRuleCall call) {
    final HiveJoin join = call.rel(0);
    final RexNode cond = join.getCondition();
    final HiveJdbcConverter converter1 = call.rel(1);
    final HiveJdbcConverter converter2 = call.rel(2);
    // First we compare the convention
    if (!converter1.getJdbcConvention().getName().equals(converter2.getJdbcConvention().getName())) {
        return false;
    }
    // Second, we compare the connection string
    if (!converter1.getConnectionUrl().equals(converter2.getConnectionUrl())) {
        return false;
    }
    // Third, we compare the connection user
    if (!converter1.getConnectionUser().equals(converter2.getConnectionUser())) {
        return false;
    }
    // We do not push cross join
    if (cond.isAlwaysTrue()) {
        return false;
    }
    return JDBCRexCallValidator.isValidJdbcOperation(cond, converter1.getJdbcDialect());
}

Example 12 with HiveJdbcConverter

use of org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.jdbc.HiveJdbcConverter in project hive by apache.

the class JDBCUnionPushDownRule method onMatch.

@Override
public void onMatch(RelOptRuleCall call) {
    LOG.debug("JDBCUnionPushDown has been called");
    final HiveUnion union = call.rel(0);
    final HiveJdbcConverter converter1 = call.rel(1);
    final HiveJdbcConverter converter2 = call.rel(2);
    List<RelNode> unionInput = Arrays.asList(converter1.getInput(), converter2.getInput());
    JdbcUnion jdbcUnion = new JdbcUnion(union.getCluster(), union.getTraitSet().replace(converter1.getJdbcConvention()), unionInput, union.all);
    call.transformTo(converter1.copy(converter1.getTraitSet(), jdbcUnion));
}

Example 13 with HiveJdbcConverter

use of org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.jdbc.HiveJdbcConverter in project hive by apache.

the class JDBCAggregationPushDownRule method onMatch.

@Override
public void onMatch(RelOptRuleCall call) {
    LOG.debug("JDBCAggregationPushDownRule has been called");
    final HiveAggregate aggregate = call.rel(0);
    final HiveJdbcConverter converter = call.rel(1);
    JdbcAggregate jdbcAggregate;
    try {
        jdbcAggregate = new JdbcAggregate(aggregate.getCluster(), aggregate.getTraitSet().replace(converter.getJdbcConvention()), converter.getInput(), aggregate.indicator, aggregate.getGroupSet(), aggregate.getGroupSets(), aggregate.getAggCallList());
    } catch (InvalidRelException e) {
        LOG.warn(e.toString());
        return;
    }
    call.transformTo(converter.copy(converter.getTraitSet(), jdbcAggregate));
}

Example 14 with HiveJdbcConverter

use of org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.jdbc.HiveJdbcConverter in project hive by apache.

the class JDBCFilterPushDownRule method onMatch.

@Override
public void onMatch(RelOptRuleCall call) {
    LOG.debug("JDBCFilterPushDown has been called");
    final HiveFilter filter = call.rel(0);
    final HiveJdbcConverter converter = call.rel(1);
    Filter newHiveFilter = filter.copy(filter.getTraitSet(), converter.getInput(), filter.getCondition());
    JdbcFilter newJdbcFilter = (JdbcFilter) JdbcFilterRule.create(converter.getJdbcConvention()).convert(newHiveFilter);
    if (newJdbcFilter != null) {
        RelNode converterRes = converter.copy(converter.getTraitSet(), Arrays.asList(newJdbcFilter));
        call.transformTo(converterRes);
    }
}

Example 15 with HiveJdbcConverter

use of org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.jdbc.HiveJdbcConverter in project hive by apache.

the class JDBCProjectPushDownRule method onMatch.

@Override
public void onMatch(RelOptRuleCall call) {
    LOG.debug("JDBCProjectPushDownRule has been called");
    final HiveProject project = call.rel(0);
    final HiveJdbcConverter converter = call.rel(1);
    JdbcProject jdbcProject = new JdbcProject(project.getCluster(), project.getTraitSet().replace(converter.getJdbcConvention()), converter.getInput(), project.getProjects(), project.getRowType());
    call.transformTo(converter.copy(converter.getTraitSet(), jdbcProject));
}