Examples with GridSqlColumn org.apache.ignite.internal.processors.query.h2.sql.GridSqlColumn used on opensource projects

Example 21 with GridSqlColumn

use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlColumn in project ignite by apache.

the class GridSqlQueryParser method parseUpdate.

/**
 * @param update Update.
 * @see <a href="http://h2database.com/html/grammar.html#update">H2 update spec</a>
 */
private GridSqlUpdate parseUpdate(Update update) {
    GridSqlUpdate res = (GridSqlUpdate) h2ObjToGridObj.get(update);
    if (res != null)
        return res;
    res = new GridSqlUpdate();
    h2ObjToGridObj.put(update, res);
    GridSqlElement tbl = parseTableFilter(UPDATE_TARGET.get(update));
    List<Column> srcCols = UPDATE_COLUMNS.get(update);
    Map<Column, Expression> srcSet = UPDATE_SET.get(update);
    ArrayList<GridSqlColumn> cols = new ArrayList<>(srcCols.size());
    LinkedHashMap<String, GridSqlElement> set = new LinkedHashMap<>(srcSet.size());
    for (Column c : srcCols) {
        GridSqlColumn col = new GridSqlColumn(c, tbl, null, null, c.getName());
        col.resultType(fromColumn(c));
        cols.add(col);
        set.put(col.columnName(), parseExpression(srcSet.get(c), true));
    }
    GridSqlElement where = parseExpression(UPDATE_WHERE.get(update), true);
    GridSqlElement limit = parseExpression(UPDATE_LIMIT.get(update), true);
    res.target(tbl).cols(cols).set(set).where(where).limit(limit);
    return res;
}

Example 22 with GridSqlColumn

use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlColumn in project ignite by apache.

the class GridSqlQueryParser method parseMerge.

/**
 * @param merge Merge.
 * @see <a href="http://h2database.com/html/grammar.html#merge">H2 merge spec</a>
 */
private GridSqlMerge parseMerge(Merge merge) {
    GridSqlMerge res = (GridSqlMerge) h2ObjToGridObj.get(merge);
    if (res != null)
        return res;
    res = new GridSqlMerge();
    h2ObjToGridObj.put(merge, res);
    Table srcTbl = MERGE_TABLE.get(merge);
    GridSqlElement tbl = parseTable(srcTbl);
    res.into(tbl);
    Column[] srcCols = MERGE_COLUMNS.get(merge);
    GridSqlColumn[] cols = new GridSqlColumn[srcCols.length];
    for (int i = 0; i < srcCols.length; i++) {
        cols[i] = new GridSqlColumn(srcCols[i], tbl, null, null, srcCols[i].getName());
        cols[i].resultType(fromColumn(srcCols[i]));
    }
    res.columns(cols);
    Column[] srcKeys = MERGE_KEYS.get(merge);
    GridH2Table intoTbl = DmlAstUtils.gridTableForElement(tbl).dataTable();
    GridH2RowDescriptor rowDesc = intoTbl.rowDescriptor();
    GridSqlColumn[] keys = new GridSqlColumn[srcKeys.length];
    for (int i = 0; i < srcKeys.length; i++) {
        String colName = srcKeys[i].getName();
        int colId = intoTbl.getColumn(colName).getColumnId();
        if (!rowDesc.isKeyColumn(colId) && !F.eq(colName, rowDesc.type().affinityKey()))
            throw new IgniteSQLException("Invalid column name in KEYS clause of MERGE - it may include only " + "key and/or affinity columns: " + colName, IgniteQueryErrorCode.PARSING);
        keys[i] = new GridSqlColumn(srcKeys[i], tbl, null, null, colName);
    }
    res.keys(keys);
    List<Expression[]> srcRows = MERGE_ROWS.get(merge);
    if (!srcRows.isEmpty()) {
        List<GridSqlElement[]> rows = new ArrayList<>(srcRows.size());
        for (Expression[] srcRow : srcRows) {
            GridSqlElement[] row = new GridSqlElement[srcRow.length];
            for (int i = 0; i < srcRow.length; i++) row[i] = parseExpression(srcRow[i], false);
            rows.add(row);
        }
        res.rows(rows);
    } else {
        res.rows(Collections.<GridSqlElement[]>emptyList());
        res.query(parseQuery(MERGE_QUERY.get(merge)));
    }
    return res;
}