/**
* Get the list of columns as a string.
*
* @return the list of columns
*/
private String getColumnListSQL() {
StatementBuilder buff = new StatementBuilder();
for (IndexColumn c : indexColumns) {
buff.appendExceptFirst(", ");
buff.append(c.getSQL());
}
return buff.toString();
}
private void createIndex() {
IndexColumn[] indexCols = null;
if (sort != null) {
int[] colIndex = sort.getQueryColumnIndexes();
indexCols = new IndexColumn[colIndex.length];
for (int i = 0; i < colIndex.length; i++) {
IndexColumn indexColumn = new IndexColumn();
indexColumn.column = table.getColumn(colIndex[i]);
indexColumn.sortType = sort.getSortTypes()[i];
indexColumn.columnName = COLUMN_NAME + i;
indexCols[i] = indexColumn;
}
} else {
indexCols = new IndexColumn[columnCount];
for (int i = 0; i < columnCount; i++) {
IndexColumn indexColumn = new IndexColumn();
indexColumn.column = table.getColumn(i);
indexColumn.columnName = COLUMN_NAME + i;
indexCols[i] = indexColumn;
}
}
String indexName = table.getSchema().getUniqueIndexName(session, table, Constants.PREFIX_INDEX);
int indexId = session.getDatabase().allocateObjectId();
IndexType indexType = IndexType.createNonUnique(true);
index = table.addIndex(session, indexName, indexId, indexCols, indexType, true, null);
}
public MVDelegateIndex(
MVTable table, int id, String name, MVPrimaryIndex mainIndex, IndexType indexType) {
IndexColumn[] cols =
IndexColumn.wrap(new Column[] {table.getColumn(mainIndex.getMainIndexColumn())});
this.initBaseIndex(table, id, name, cols, indexType);
this.mainIndex = mainIndex;
if (id < 0) {
throw DbException.throwInternalError("" + name);
}
}
public PageDelegateIndex(
TableData table,
int id,
String name,
IndexType indexType,
PageDataIndex mainIndex,
int headPos,
Session session)
throws SQLException {
IndexColumn[] columns =
IndexColumn.wrap(new Column[] {table.getColumn(mainIndex.getMainIndexColumn())});
this.initBaseIndex(table, id, name, columns, indexType);
this.mainIndex = mainIndex;
if (!database.isPersistent() || id < 0) {
throw Message.throwInternalError("" + name);
}
PageStore store = database.getPageStore();
store.addIndex(this);
if (headPos == Index.EMPTY_HEAD) {
store.addMeta(this, session);
}
}
/**
* @param ctx Context.
* @param tbl Table.
* @param name Index name.
*/
public GridMergeIndexUnsorted(GridKernalContext ctx, GridMergeTable tbl, String name) {
super(ctx, tbl, name, IndexType.createScan(false), IndexColumn.wrap(tbl.getColumns()));
}
