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

Example 11 with EXISTS

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

the class SchemaManager method dropIndex.

/**
 * Drop index.
 *
 * @param schemaName Schema name.
 * @param idxName Index name.
 * @param ifExists If exists.
 * @throws IgniteCheckedException If failed.
 */
public void dropIndex(final String schemaName, String idxName, boolean ifExists) throws IgniteCheckedException {
    String sql = H2Utils.indexDropSql(schemaName, idxName, ifExists);
    GridH2Table tbl = dataTableForIndex(schemaName, idxName);
    assert tbl != null;
    tbl.setRemoveIndexOnDestroy(true);
    connMgr.executeStatement(schemaName, sql);
}

Example 12 with EXISTS

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

the class GridSqlQueryParser method parseExpression0.

/**
 * @param expression Expression.
 * @param calcTypes Calculate types for all the expressions.
 * @return Parsed expression.
 */
private GridSqlElement parseExpression0(Expression expression, boolean calcTypes) {
    if (expression instanceof ExpressionColumn) {
        ExpressionColumn expCol = (ExpressionColumn) expression;
        return new GridSqlColumn(expCol.getColumn(), parseTableFilter(expCol.getTableFilter()), SCHEMA_NAME.get(expCol), expCol.getOriginalTableAliasName(), expCol.getColumnName());
    }
    if (expression instanceof Alias)
        return new GridSqlAlias(expression.getAlias(), parseExpression(expression.getNonAliasExpression(), calcTypes), true);
    if (expression instanceof ValueExpression)
        // == comparison is legit, see ValueExpression#getSQL()
        return expression == ValueExpression.getDefault() ? GridSqlKeyword.DEFAULT : new GridSqlConst(expression.getValue(null));
    if (expression instanceof Operation) {
        Operation operation = (Operation) expression;
        Operation.OpType type = OPERATION_TYPE.get(operation);
        if (type == Operation.OpType.NEGATE) {
            assert OPERATION_RIGHT.get(operation) == null;
            return new GridSqlOperation(GridSqlOperationType.NEGATE, parseExpression(OPERATION_LEFT.get(operation), calcTypes));
        }
        return new GridSqlOperation(mapOperationType(type), parseExpression(OPERATION_LEFT.get(operation), calcTypes), parseExpression(OPERATION_RIGHT.get(operation), calcTypes));
    }
    if (expression instanceof Comparison) {
        Comparison cmp = (Comparison) expression;
        GridSqlOperationType opType = COMPARISON_TYPES[COMPARISON_TYPE.get(cmp)];
        assert opType != null : COMPARISON_TYPE.get(cmp);
        Expression leftExp = COMPARISON_LEFT.get(cmp);
        GridSqlElement left = parseExpression(leftExp, calcTypes);
        if (opType.childrenCount() == 1)
            return new GridSqlOperation(opType, left);
        Expression rightExp = COMPARISON_RIGHT.get(cmp);
        GridSqlElement right = parseExpression(rightExp, calcTypes);
        return new GridSqlOperation(opType, left, right);
    }
    if (expression instanceof ConditionNot)
        return new GridSqlOperation(NOT, parseExpression(expression.getNotIfPossible(null), calcTypes));
    if (expression instanceof ConditionAndOr) {
        ConditionAndOr andOr = (ConditionAndOr) expression;
        int type = ANDOR_TYPE.get(andOr);
        assert type == ConditionAndOr.AND || type == ConditionAndOr.OR;
        return new GridSqlOperation(type == ConditionAndOr.AND ? AND : OR, parseExpression(ANDOR_LEFT.get(andOr), calcTypes), parseExpression(ANDOR_RIGHT.get(andOr), calcTypes));
    }
    if (expression instanceof Subquery) {
        Query qry = ((Subquery) expression).getQuery();
        return parseQueryExpression(qry);
    }
    if (expression instanceof ConditionIn) {
        GridSqlOperation res = new GridSqlOperation(IN);
        res.addChild(parseExpression(LEFT_CI.get((ConditionIn) expression), calcTypes));
        List<Expression> vals = VALUE_LIST_CI.get((ConditionIn) expression);
        for (Expression val : vals) res.addChild(parseExpression(val, calcTypes));
        return res;
    }
    if (expression instanceof ConditionInConstantSet) {
        GridSqlOperation res = new GridSqlOperation(IN);
        res.addChild(parseExpression(LEFT_CICS.get((ConditionInConstantSet) expression), calcTypes));
        List<Expression> vals = VALUE_LIST_CICS.get((ConditionInConstantSet) expression);
        for (Expression val : vals) res.addChild(parseExpression(val, calcTypes));
        return res;
    }
    if (expression instanceof ConditionInSelect) {
        GridSqlOperation res = new GridSqlOperation(IN);
        boolean all = ALL.get((ConditionInSelect) expression);
        int compareType = COMPARE_TYPE.get((ConditionInSelect) expression);
        assert0(!all, expression);
        assert0(compareType == Comparison.EQUAL, expression);
        res.addChild(parseExpression(LEFT_CIS.get((ConditionInSelect) expression), calcTypes));
        Query qry = QUERY_IN.get((ConditionInSelect) expression);
        res.addChild(parseQueryExpression(qry));
        return res;
    }
    if (expression instanceof CompareLike) {
        assert0(ESCAPE.get((CompareLike) expression) == null, expression);
        boolean regexp = REGEXP_CL.get((CompareLike) expression);
        return new GridSqlOperation(regexp ? REGEXP : LIKE, parseExpression(LEFT.get((CompareLike) expression), calcTypes), parseExpression(RIGHT.get((CompareLike) expression), calcTypes));
    }
    if (expression instanceof Function) {
        Function f = (Function) expression;
        GridSqlFunction res = new GridSqlFunction(null, f.getName());
        if (f.getArgs() != null) {
            if (f.getFunctionType() == Function.TABLE || f.getFunctionType() == Function.TABLE_DISTINCT) {
                Column[] cols = FUNC_TBL_COLS.get((TableFunction) f);
                Expression[] args = f.getArgs();
                assert cols.length == args.length;
                for (int i = 0; i < cols.length; i++) {
                    GridSqlElement arg = parseExpression(args[i], calcTypes);
                    GridSqlAlias alias = new GridSqlAlias(cols[i].getName(), arg, false);
                    alias.resultType(fromColumn(cols[i]));
                    res.addChild(alias);
                }
            } else {
                for (Expression arg : f.getArgs()) {
                    if (arg == null) {
                        if (f.getFunctionType() != Function.CASE)
                            throw new IllegalStateException("Function type with null arg: " + f.getFunctionType());
                        res.addChild(GridSqlPlaceholder.EMPTY);
                    } else
                        res.addChild(parseExpression(arg, calcTypes));
                }
            }
        }
        if (f.getFunctionType() == Function.CAST || f.getFunctionType() == Function.CONVERT) {
            checkTypeSupported(f.getType(), "[expSql=" + f.getSQL() + ']');
            res.resultType(fromExpression(f));
        }
        return res;
    }
    if (expression instanceof JavaFunction) {
        JavaFunction f = (JavaFunction) expression;
        FunctionAlias alias = FUNC_ALIAS.get(f);
        GridSqlFunction res = new GridSqlFunction(alias.getSchema().getName(), f.getName());
        if (f.getArgs() != null) {
            for (Expression arg : f.getArgs()) res.addChild(parseExpression(arg, calcTypes));
        }
        return res;
    }
    if (expression instanceof Parameter)
        return new GridSqlParameter(((Parameter) expression).getIndex());
    if (expression instanceof Aggregate) {
        Aggregate.AggregateType type = TYPE.get((Aggregate) expression);
        if (GridSqlAggregateFunction.isValidType(type)) {
            GridSqlAggregateFunction res = new GridSqlAggregateFunction(DISTINCT.get((Aggregate) expression), type);
            Expression on = ON.get((Aggregate) expression);
            if (on != null)
                res.addChild(parseExpression(on, calcTypes));
            ArrayList<SelectOrderBy> orders = GROUP_CONCAT_ORDER_LIST.get((Aggregate) expression);
            if (!F.isEmpty(orders))
                parseGroupConcatOrder(res, orders, calcTypes);
            Expression separator = GROUP_CONCAT_SEPARATOR.get((Aggregate) expression);
            if (separator != null)
                res.setGroupConcatSeparator(parseExpression(separator, calcTypes));
            return res;
        }
    }
    if (expression instanceof ExpressionList) {
        Expression[] exprs = EXPR_LIST.get((ExpressionList) expression);
        GridSqlArray res = new GridSqlArray(exprs.length);
        for (Expression expr : exprs) res.addChild(parseExpression(expr, calcTypes));
        return res;
    }
    if (expression instanceof ConditionExists) {
        Query qry = QUERY_EXISTS.get((ConditionExists) expression);
        GridSqlOperation res = new GridSqlOperation(EXISTS);
        res.addChild(parseQueryExpression(qry));
        return res;
    }
    throw new IgniteException("Unsupported expression: " + expression + " [type=" + expression.getClass().getSimpleName() + ']');
}

Example 13 with EXISTS

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

the class H2DynamicTableSelfTest method testGetTablesForCache.

/**
 * Test that tables method only returns tables belonging to given cache.
 *
 * @throws Exception if failed.
 */
@Test
public void testGetTablesForCache() throws Exception {
    try {
        execute("create table t1(id int primary key, name varchar)");
        execute("create table t2(id int primary key, name varchar)");
        IgniteH2Indexing h2Idx = (IgniteH2Indexing) grid(0).context().query().getIndexing();
        String cacheName = cacheName("T1");
        Collection<H2TableDescriptor> col = h2Idx.schemaManager().tablesForCache(cacheName);
        assertNotNull(col);
        H2TableDescriptor[] tables = col.toArray(new H2TableDescriptor[col.size()]);
        assertEquals(1, tables.length);
        assertEquals(tables[0].table().getName(), "T1");
    } finally {
        execute("drop table t1 if exists");
        execute("drop table t2 if exists");
    }
}

Example 14 with EXISTS

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

the class GridH2Table method checkIndexPresence.

/**
 * Checks index presence, return {@link Index} if index with same name or same fields and search direction already
 * exist or {@code null} othervise.
 *
 * @param curIdx Index to check.
 * @return Index if equal or subset index exist.
 * @throws IgniteCheckedException If failed.
 */
@Nullable
private Index checkIndexPresence(Index curIdx) throws IgniteCheckedException {
    IndexColumn[] curColumns = curIdx.getIndexColumns();
    Index registredIdx = null;
    for (Index idx : idxs) {
        if (!(idx instanceof H2TreeIndex))
            continue;
        if (F.eq(curIdx.getName(), idx.getName()))
            throw new IgniteCheckedException("Index already exists: " + idx.getName());
        IndexColumn[] idxColumns = idx.getIndexColumns();
        for (int i = 0; i < Math.min(idxColumns.length, curColumns.length); ++i) {
            IndexColumn idxCol = idxColumns[i];
            IndexColumn curCol = curColumns[i];
            // pk attach at the end of listed fields.
            if (curCol.column.getColumnId() == 0 && registredIdx != null)
                continue;
            if (H2Utils.equals(idxCol, curCol) && idxCol.sortType == curCol.sortType)
                registredIdx = idx;
            else {
                registredIdx = null;
                break;
            }
        }
        if (registredIdx != null)
            return registredIdx;
    }
    return null;
}

Example 15 with EXISTS

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

the class GridH2Table method tableStatistics.

/**
 * Get actual table statistics if exists.
 *
 * @return Table statistics or {@code null} if there is no statistics available.
 */
public ObjectStatistics tableStatistics() {
    GridCacheContext cacheContext = cacheInfo.cacheContext();
    if (cacheContext == null)
        return null;
    IgniteH2Indexing indexing = (IgniteH2Indexing) cacheContext.kernalContext().query().getIndexing();
    return indexing.statsManager().getLocalStatistics(new StatisticsKey(identifier.schema(), identifier.table()));
}