Examples with CreateIndexCommand org.apache.ignite.internal.sql.engine.prepare.ddl.CreateIndexCommand used on opensource projects

Example 1 with CreateIndexCommand

use of org.apache.ignite.internal.sql.engine.prepare.ddl.CreateIndexCommand in project ignite-3 by apache.

the class DdlCommandHandler method handleCreateIndex.

/**
 * Handles create index command.
 */
private void handleCreateIndex(CreateIndexCommand cmd) {
    // Only sorted idx for now.
    SortedIndexDefinitionBuilder idx = SchemaBuilders.sortedIndex(cmd.indexName());
    for (Pair<String, Boolean> idxInfo : cmd.columns()) {
        SortedIndexColumnBuilder idx0 = idx.addIndexColumn(idxInfo.getFirst());
        if (idxInfo.getSecond()) {
            idx0.desc();
        }
        idx0.done();
    }
    String fullName = TableDefinitionImpl.canonicalName(IgniteObjectName.quote(cmd.schemaName()), IgniteObjectName.quote(cmd.tableName()));
    tableManager.alterTable(fullName, chng -> chng.changeIndices(idxes -> {
        if (idxes.get(cmd.indexName()) != null) {
            if (!cmd.ifIndexNotExists()) {
                throw new IndexAlreadyExistsException(cmd.indexName());
            } else {
                return;
            }
        }
        idxes.create(cmd.indexName(), tableIndexChange -> convert(idx.build(), tableIndexChange));
    }));
}