Examples with IgniteLogicalIndexScan org.apache.ignite.internal.sql.engine.rel.logical.IgniteLogicalIndexScan used on opensource projects

Example 1 with IgniteLogicalIndexScan

use of org.apache.ignite.internal.sql.engine.rel.logical.IgniteLogicalIndexScan in project ignite-3 by apache.

the class ExposeIndexRule method onMatch.

/**
 * {@inheritDoc}
 */
@Override
public void onMatch(RelOptRuleCall call) {
    IgniteLogicalTableScan scan = call.rel(0);
    RelOptCluster cluster = scan.getCluster();
    RelOptTable optTable = scan.getTable();
    InternalIgniteTable igniteTable = optTable.unwrap(InternalIgniteTable.class);
    List<RexNode> proj = scan.projects();
    RexNode condition = scan.condition();
    ImmutableBitSet requiredCols = scan.requiredColumns();
    List<IgniteLogicalIndexScan> indexes = igniteTable.indexes().keySet().stream().map(idxName -> igniteTable.toRel(cluster, optTable, idxName, proj, condition, requiredCols)).collect(Collectors.toList());
    if (indexes.isEmpty()) {
        return;
    }
    Map<RelNode, RelNode> equivMap = new HashMap<>(indexes.size());
    for (int i = 1; i < indexes.size(); i++) {
        equivMap.put(indexes.get(i), scan);
    }
    call.transformTo(indexes.get(0), equivMap);
}