ResultTempTable(Session session, Expression[] expressions, boolean distinct, SortOrder sort) {
this.session = session;
this.distinct = distinct;
this.sort = sort;
this.columnCount = expressions.length;
Schema schema = session.getDatabase().getSchema(Constants.SCHEMA_MAIN);
CreateTableData data = new CreateTableData();
for (int i = 0; i < expressions.length; i++) {
int type = expressions[i].getType();
Column col = new Column(COLUMN_NAME + i, type);
if (type == Value.CLOB || type == Value.BLOB) {
containsLob = true;
}
data.columns.add(col);
}
data.id = session.getDatabase().allocateObjectId();
data.tableName = "TEMP_RESULT_SET_" + data.id;
data.temporary = true;
data.persistIndexes = false;
data.persistData = true;
data.create = true;
data.session = session;
table = schema.createTable(data);
if (sort != null || distinct) {
createIndex();
}
parent = null;
}
/**
* @param conn Connection.
* @param qry Query.
* @param explain Explain.
* @return Table.
* @throws IgniteCheckedException
*/
private GridMergeTable createMergeTable(
JdbcConnection conn, GridCacheSqlQuery qry, boolean explain) throws IgniteCheckedException {
try {
Session ses = (Session) conn.getSession();
CreateTableData data = new CreateTableData();
data.tableName = "T___";
data.schema = ses.getDatabase().getSchema(ses.getCurrentSchemaName());
data.create = true;
if (!explain) {
LinkedHashMap<String, ?> colsMap = qry.columns();
assert colsMap != null;
ArrayList<Column> cols = new ArrayList<>(colsMap.size());
for (Map.Entry<String, ?> e : colsMap.entrySet()) {
String alias = e.getKey();
GridSqlType t = (GridSqlType) e.getValue();
assert !F.isEmpty(alias);
Column c = new Column(alias, t.type(), t.precision(), t.scale(), t.displaySize());
cols.add(c);
}
data.columns = cols;
} else data.columns = planColumns();
return new GridMergeTable(data, ctx);
} catch (Exception e) {
U.closeQuiet(conn);
throw new IgniteCheckedException(e);
}
}