Examples with ValueExpression org.h2.expression.ValueExpression used on opensource projects

Example 1 with ValueExpression

use of org.h2.expression.ValueExpression in project h2database by h2database.

the class Parser method parseEndOfQuery.

private void parseEndOfQuery(Query command) {
    if (readIf("ORDER")) {
        read("BY");
        Select oldSelect = currentSelect;
        if (command instanceof Select) {
            currentSelect = (Select) command;
        }
        ArrayList<SelectOrderBy> orderList = New.arrayList();
        do {
            boolean canBeNumber = true;
            if (readIf("=")) {
                canBeNumber = false;
            }
            SelectOrderBy order = new SelectOrderBy();
            Expression expr = readExpression();
            if (canBeNumber && expr instanceof ValueExpression && expr.getType() == Value.INT) {
                order.columnIndexExpr = expr;
            } else if (expr instanceof Parameter) {
                recompileAlways = true;
                order.columnIndexExpr = expr;
            } else {
                order.expression = expr;
            }
            if (readIf("DESC")) {
                order.descending = true;
            } else {
                readIf("ASC");
            }
            if (readIf("NULLS")) {
                if (readIf("FIRST")) {
                    order.nullsFirst = true;
                } else {
                    read("LAST");
                    order.nullsLast = true;
                }
            }
            orderList.add(order);
        } while (readIf(","));
        command.setOrder(orderList);
        currentSelect = oldSelect;
    }
    // make sure aggregate functions will not work here
    Select temp = currentSelect;
    currentSelect = null;
    // http://sqlpro.developpez.com/SQL2008/
    if (readIf("OFFSET")) {
        command.setOffset(readExpression().optimize(session));
        if (!readIf("ROW")) {
            readIf("ROWS");
        }
    }
    if (readIf("FETCH")) {
        if (!readIf("FIRST")) {
            read("NEXT");
        }
        if (readIf("ROW")) {
            command.setLimit(ValueExpression.get(ValueInt.get(1)));
        } else {
            Expression limit = readExpression().optimize(session);
            command.setLimit(limit);
            if (!readIf("ROW")) {
                read("ROWS");
            }
        }
        read("ONLY");
    }
    currentSelect = temp;
    if (readIf("LIMIT")) {
        temp = currentSelect;
        // make sure aggregate functions will not work here
        currentSelect = null;
        Expression limit = readExpression().optimize(session);
        command.setLimit(limit);
        if (readIf("OFFSET")) {
            Expression offset = readExpression().optimize(session);
            command.setOffset(offset);
        } else if (readIf(",")) {
            // MySQL: [offset, ] rowcount
            Expression offset = limit;
            limit = readExpression().optimize(session);
            command.setOffset(offset);
            command.setLimit(limit);
        }
        if (readIf("SAMPLE_SIZE")) {
            Expression sampleSize = readExpression().optimize(session);
            command.setSampleSize(sampleSize);
        }
        currentSelect = temp;
    }
    if (readIf("FOR")) {
        if (readIf("UPDATE")) {
            if (readIf("OF")) {
                do {
                    readIdentifierWithSchema();
                } while (readIf(","));
            } else if (readIf("NOWAIT")) {
            // TODO parser: select for update nowait: should not wait
            }
            command.setForUpdate(true);
        } else if (readIf("READ") || readIf("FETCH")) {
            read("ONLY");
        }
    }
    if (database.getMode().isolationLevelInSelectOrInsertStatement) {
        parseIsolationClause();
    }
}

Example 2 with ValueExpression

use of org.h2.expression.ValueExpression in project h2database by h2database.

the class Function method getSQL.

@Override
public String getSQL() {
    StatementBuilder buff = new StatementBuilder(info.name);
    if (info.type == CASE) {
        if (args[0] != null) {
            buff.append(" ").append(args[0].getSQL());
        }
        for (int i = 1, len = args.length - 1; i < len; i += 2) {
            buff.append(" WHEN ").append(args[i].getSQL());
            buff.append(" THEN ").append(args[i + 1].getSQL());
        }
        if (args.length % 2 == 0) {
            buff.append(" ELSE ").append(args[args.length - 1].getSQL());
        }
        return buff.append(" END").toString();
    }
    buff.append('(');
    switch(info.type) {
        case CAST:
            {
                buff.append(args[0].getSQL()).append(" AS ").append(new Column(null, dataType, precision, scale, displaySize).getCreateSQL());
                break;
            }
        case CONVERT:
            {
                if (database.getMode().swapConvertFunctionParameters) {
                    buff.append(new Column(null, dataType, precision, scale, displaySize).getCreateSQL()).append(',').append(args[0].getSQL());
                } else {
                    buff.append(args[0].getSQL()).append(',').append(new Column(null, dataType, precision, scale, displaySize).getCreateSQL());
                }
                break;
            }
        case EXTRACT:
            {
                ValueString v = (ValueString) ((ValueExpression) args[0]).getValue(null);
                buff.append(v.getString()).append(" FROM ").append(args[1].getSQL());
                break;
            }
        default:
            {
                for (Expression e : args) {
                    buff.appendExceptFirst(", ");
                    buff.append(e.getSQL());
                }
            }
    }
    return buff.append(')').toString();
}

Example 3 with ValueExpression

use of org.h2.expression.ValueExpression in project h2database by h2database.

the class FullText method addColumnData.

private static void addColumnData(ArrayList<String> columns, ArrayList<String> data, Expression expr) {
    if (expr instanceof ConditionAndOr) {
        ConditionAndOr and = (ConditionAndOr) expr;
        Expression left = and.getExpression(true);
        Expression right = and.getExpression(false);
        addColumnData(columns, data, left);
        addColumnData(columns, data, right);
    } else {
        Comparison comp = (Comparison) expr;
        ExpressionColumn ec = (ExpressionColumn) comp.getExpression(true);
        ValueExpression ev = (ValueExpression) comp.getExpression(false);
        String columnName = ec.getColumnName();
        columns.add(columnName);
        if (ev == null) {
            data.add(null);
        } else {
            data.add(ev.getValue(null).getString());
        }
    }
}

Example 4 with ValueExpression

use of org.h2.expression.ValueExpression in project h2database by h2database.

the class MetaTable method generateRows.

/**
 * Generate the data for the given metadata table using the given first and
 * last row filters.
 *
 * @param session the session
 * @param first the first row to return
 * @param last the last row to return
 * @return the generated rows
 */
public ArrayList<Row> generateRows(Session session, SearchRow first, SearchRow last) {
    Value indexFrom = null, indexTo = null;
    if (indexColumn >= 0) {
        if (first != null) {
            indexFrom = first.getValue(indexColumn);
        }
        if (last != null) {
            indexTo = last.getValue(indexColumn);
        }
    }
    ArrayList<Row> rows = New.arrayList();
    String catalog = identifier(database.getShortName());
    boolean admin = session.getUser().isAdmin();
    switch(type) {
        case TABLES:
            {
                for (Table table : getAllTables(session)) {
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    if (hideTable(table, session)) {
                        continue;
                    }
                    String storageType;
                    if (table.isTemporary()) {
                        if (table.isGlobalTemporary()) {
                            storageType = "GLOBAL TEMPORARY";
                        } else {
                            storageType = "LOCAL TEMPORARY";
                        }
                    } else {
                        storageType = table.isPersistIndexes() ? "CACHED" : "MEMORY";
                    }
                    String sql = table.getCreateSQL();
                    if (!admin) {
                        if (sql != null && sql.contains(JdbcSQLException.HIDE_SQL)) {
                            // hide the password of linked tables
                            sql = "-";
                        }
                    }
                    add(rows, // TABLE_CATALOG
                    catalog, // TABLE_SCHEMA
                    identifier(table.getSchema().getName()), // TABLE_NAME
                    tableName, // TABLE_TYPE
                    table.getTableType().toString(), // STORAGE_TYPE
                    storageType, // SQL
                    sql, // REMARKS
                    replaceNullWithEmpty(table.getComment()), // LAST_MODIFICATION
                    "" + table.getMaxDataModificationId(), // ID
                    "" + table.getId(), // TYPE_NAME
                    null, // TABLE_CLASS
                    table.getClass().getName(), // ROW_COUNT_ESTIMATE
                    "" + table.getRowCountApproximation());
                }
                break;
            }
        case COLUMNS:
            {
                // reduce the number of tables to scan - makes some metadata queries
                // 10x faster
                final ArrayList<Table> tablesToList;
                if (indexFrom != null && indexFrom.equals(indexTo)) {
                    String tableName = identifier(indexFrom.getString());
                    tablesToList = getTablesByName(session, tableName);
                } else {
                    tablesToList = getAllTables(session);
                }
                for (Table table : tablesToList) {
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    if (hideTable(table, session)) {
                        continue;
                    }
                    Column[] cols = table.getColumns();
                    String collation = database.getCompareMode().getName();
                    for (int j = 0; j < cols.length; j++) {
                        Column c = cols[j];
                        Sequence sequence = c.getSequence();
                        add(rows, // TABLE_CATALOG
                        catalog, // TABLE_SCHEMA
                        identifier(table.getSchema().getName()), // TABLE_NAME
                        tableName, // COLUMN_NAME
                        identifier(c.getName()), // ORDINAL_POSITION
                        String.valueOf(j + 1), // COLUMN_DEFAULT
                        c.getDefaultSQL(), // IS_NULLABLE
                        c.isNullable() ? "YES" : "NO", // DATA_TYPE
                        "" + DataType.convertTypeToSQLType(c.getType()), // CHARACTER_MAXIMUM_LENGTH
                        "" + c.getPrecisionAsInt(), // CHARACTER_OCTET_LENGTH
                        "" + c.getPrecisionAsInt(), // NUMERIC_PRECISION
                        "" + c.getPrecisionAsInt(), // NUMERIC_PRECISION_RADIX
                        "10", // NUMERIC_SCALE
                        "" + c.getScale(), // CHARACTER_SET_NAME
                        CHARACTER_SET_NAME, // COLLATION_NAME
                        collation, // TYPE_NAME
                        identifier(DataType.getDataType(c.getType()).name), // NULLABLE
                        "" + (c.isNullable() ? DatabaseMetaData.columnNullable : DatabaseMetaData.columnNoNulls), // IS_COMPUTED
                        "" + (c.getComputed() ? "TRUE" : "FALSE"), // SELECTIVITY
                        "" + (c.getSelectivity()), // CHECK_CONSTRAINT
                        c.getCheckConstraintSQL(session, c.getName()), // SEQUENCE_NAME
                        sequence == null ? null : sequence.getName(), // REMARKS
                        replaceNullWithEmpty(c.getComment()), // SOURCE_DATA_TYPE
                        null, // COLUMN_TYPE
                        c.getCreateSQLWithoutName(), // COLUMN_ON_UPDATE
                        c.getOnUpdateSQL());
                    }
                }
                break;
            }
        case INDEXES:
            {
                // reduce the number of tables to scan - makes some metadata queries
                // 10x faster
                final ArrayList<Table> tablesToList;
                if (indexFrom != null && indexFrom.equals(indexTo)) {
                    String tableName = identifier(indexFrom.getString());
                    tablesToList = getTablesByName(session, tableName);
                } else {
                    tablesToList = getAllTables(session);
                }
                for (Table table : tablesToList) {
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    if (hideTable(table, session)) {
                        continue;
                    }
                    ArrayList<Index> indexes = table.getIndexes();
                    ArrayList<Constraint> constraints = table.getConstraints();
                    for (int j = 0; indexes != null && j < indexes.size(); j++) {
                        Index index = indexes.get(j);
                        if (index.getCreateSQL() == null) {
                            continue;
                        }
                        String constraintName = null;
                        for (int k = 0; constraints != null && k < constraints.size(); k++) {
                            Constraint constraint = constraints.get(k);
                            if (constraint.usesIndex(index)) {
                                if (index.getIndexType().isPrimaryKey()) {
                                    if (constraint.getConstraintType() == Constraint.Type.PRIMARY_KEY) {
                                        constraintName = constraint.getName();
                                    }
                                } else {
                                    constraintName = constraint.getName();
                                }
                            }
                        }
                        IndexColumn[] cols = index.getIndexColumns();
                        String indexClass;
                        if (index instanceof MultiVersionIndex) {
                            indexClass = ((MultiVersionIndex) index).getBaseIndex().getClass().getName();
                        } else {
                            indexClass = index.getClass().getName();
                        }
                        for (int k = 0; k < cols.length; k++) {
                            IndexColumn idxCol = cols[k];
                            Column column = idxCol.column;
                            add(rows, // TABLE_CATALOG
                            catalog, // TABLE_SCHEMA
                            identifier(table.getSchema().getName()), // TABLE_NAME
                            tableName, // NON_UNIQUE
                            index.getIndexType().isUnique() ? "FALSE" : "TRUE", // INDEX_NAME
                            identifier(index.getName()), // ORDINAL_POSITION
                            "" + (k + 1), // COLUMN_NAME
                            identifier(column.getName()), // CARDINALITY
                            "0", // PRIMARY_KEY
                            index.getIndexType().isPrimaryKey() ? "TRUE" : "FALSE", // INDEX_TYPE_NAME
                            index.getIndexType().getSQL(), // IS_GENERATED
                            index.getIndexType().getBelongsToConstraint() ? "TRUE" : "FALSE", // INDEX_TYPE
                            "" + DatabaseMetaData.tableIndexOther, // ASC_OR_DESC
                            (idxCol.sortType & SortOrder.DESCENDING) != 0 ? "D" : "A", // PAGES
                            "0", // FILTER_CONDITION
                            "", // REMARKS
                            replaceNullWithEmpty(index.getComment()), // SQL
                            index.getCreateSQL(), // ID
                            "" + index.getId(), // SORT_TYPE
                            "" + idxCol.sortType, // CONSTRAINT_NAME
                            constraintName, // INDEX_CLASS
                            indexClass, // AFFINITY
                            index.getIndexType().isAffinity() ? "TRUE" : "FALSE");
                        }
                    }
                }
                break;
            }
        case TABLE_TYPES:
            {
                add(rows, TableType.TABLE.toString());
                add(rows, TableType.TABLE_LINK.toString());
                add(rows, TableType.SYSTEM_TABLE.toString());
                add(rows, TableType.VIEW.toString());
                add(rows, TableType.EXTERNAL_TABLE_ENGINE.toString());
                break;
            }
        case CATALOGS:
            {
                add(rows, catalog);
                break;
            }
        case SETTINGS:
            {
                for (Setting s : database.getAllSettings()) {
                    String value = s.getStringValue();
                    if (value == null) {
                        value = "" + s.getIntValue();
                    }
                    add(rows, identifier(s.getName()), value);
                }
                add(rows, "info.BUILD_ID", "" + Constants.BUILD_ID);
                add(rows, "info.VERSION_MAJOR", "" + Constants.VERSION_MAJOR);
                add(rows, "info.VERSION_MINOR", "" + Constants.VERSION_MINOR);
                add(rows, "info.VERSION", "" + Constants.getFullVersion());
                if (admin) {
                    String[] settings = { "java.runtime.version", "java.vm.name", "java.vendor", "os.name", "os.arch", "os.version", "sun.os.patch.level", "file.separator", "path.separator", "line.separator", "user.country", "user.language", "user.variant", "file.encoding" };
                    for (String s : settings) {
                        add(rows, "property." + s, Utils.getProperty(s, ""));
                    }
                }
                add(rows, "EXCLUSIVE", database.getExclusiveSession() == null ? "FALSE" : "TRUE");
                add(rows, "MODE", database.getMode().getName());
                add(rows, "MULTI_THREADED", database.isMultiThreaded() ? "1" : "0");
                add(rows, "MVCC", database.isMultiVersion() ? "TRUE" : "FALSE");
                add(rows, "QUERY_TIMEOUT", "" + session.getQueryTimeout());
                add(rows, "RETENTION_TIME", "" + database.getRetentionTime());
                add(rows, "LOG", "" + database.getLogMode());
                // database settings
                ArrayList<String> settingNames = New.arrayList();
                HashMap<String, String> s = database.getSettings().getSettings();
                settingNames.addAll(s.keySet());
                Collections.sort(settingNames);
                for (String k : settingNames) {
                    add(rows, k, s.get(k));
                }
                if (database.isPersistent()) {
                    PageStore store = database.getPageStore();
                    if (store != null) {
                        add(rows, "info.FILE_WRITE_TOTAL", "" + store.getWriteCountTotal());
                        add(rows, "info.FILE_WRITE", "" + store.getWriteCount());
                        add(rows, "info.FILE_READ", "" + store.getReadCount());
                        add(rows, "info.PAGE_COUNT", "" + store.getPageCount());
                        add(rows, "info.PAGE_SIZE", "" + store.getPageSize());
                        add(rows, "info.CACHE_MAX_SIZE", "" + store.getCache().getMaxMemory());
                        add(rows, "info.CACHE_SIZE", "" + store.getCache().getMemory());
                    }
                    Store mvStore = database.getMvStore();
                    if (mvStore != null) {
                        FileStore fs = mvStore.getStore().getFileStore();
                        add(rows, "info.FILE_WRITE", "" + fs.getWriteCount());
                        add(rows, "info.FILE_READ", "" + fs.getReadCount());
                        long size;
                        try {
                            size = fs.getFile().size();
                        } catch (IOException e) {
                            throw DbException.convertIOException(e, "Can not get size");
                        }
                        int pageSize = 4 * 1024;
                        long pageCount = size / pageSize;
                        add(rows, "info.PAGE_COUNT", "" + pageCount);
                        add(rows, "info.PAGE_SIZE", "" + pageSize);
                        add(rows, "info.CACHE_MAX_SIZE", "" + mvStore.getStore().getCacheSize());
                        add(rows, "info.CACHE_SIZE", "" + mvStore.getStore().getCacheSizeUsed());
                    }
                }
                break;
            }
        case TYPE_INFO:
            {
                for (DataType t : DataType.getTypes()) {
                    if (t.hidden || t.sqlType == Value.NULL) {
                        continue;
                    }
                    add(rows, // TYPE_NAME
                    t.name, // DATA_TYPE
                    String.valueOf(t.sqlType), // PRECISION
                    String.valueOf(MathUtils.convertLongToInt(t.maxPrecision)), // PREFIX
                    t.prefix, // SUFFIX
                    t.suffix, // PARAMS
                    t.params, // AUTO_INCREMENT
                    String.valueOf(t.autoIncrement), // MINIMUM_SCALE
                    String.valueOf(t.minScale), // MAXIMUM_SCALE
                    String.valueOf(t.maxScale), // RADIX
                    t.decimal ? "10" : null, // POS
                    String.valueOf(t.sqlTypePos), // CASE_SENSITIVE
                    String.valueOf(t.caseSensitive), // NULLABLE
                    "" + DatabaseMetaData.typeNullable, // SEARCHABLE
                    "" + DatabaseMetaData.typeSearchable);
                }
                break;
            }
        case HELP:
            {
                String resource = "/org/h2/res/help.csv";
                try {
                    byte[] data = Utils.getResource(resource);
                    Reader reader = new InputStreamReader(new ByteArrayInputStream(data));
                    Csv csv = new Csv();
                    csv.setLineCommentCharacter('#');
                    ResultSet rs = csv.read(reader, null);
                    for (int i = 0; rs.next(); i++) {
                        add(rows, // ID
                        String.valueOf(i), // SECTION
                        rs.getString(1).trim(), // TOPIC
                        rs.getString(2).trim(), // SYNTAX
                        rs.getString(3).trim(), // TEXT
                        rs.getString(4).trim());
                    }
                } catch (Exception e) {
                    throw DbException.convert(e);
                }
                break;
            }
        case SEQUENCES:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.SEQUENCE)) {
                    Sequence s = (Sequence) obj;
                    add(rows, // SEQUENCE_CATALOG
                    catalog, // SEQUENCE_SCHEMA
                    identifier(s.getSchema().getName()), // SEQUENCE_NAME
                    identifier(s.getName()), // CURRENT_VALUE
                    String.valueOf(s.getCurrentValue()), // INCREMENT
                    String.valueOf(s.getIncrement()), // IS_GENERATED
                    s.getBelongsToTable() ? "TRUE" : "FALSE", // REMARKS
                    replaceNullWithEmpty(s.getComment()), // CACHE
                    String.valueOf(s.getCacheSize()), // MIN_VALUE
                    String.valueOf(s.getMinValue()), // MAX_VALUE
                    String.valueOf(s.getMaxValue()), // IS_CYCLE
                    s.getCycle() ? "TRUE" : "FALSE", // ID
                    "" + s.getId());
                }
                break;
            }
        case USERS:
            {
                for (User u : database.getAllUsers()) {
                    if (admin || session.getUser() == u) {
                        add(rows, // NAME
                        identifier(u.getName()), // ADMIN
                        String.valueOf(u.isAdmin()), // REMARKS
                        replaceNullWithEmpty(u.getComment()), // ID
                        "" + u.getId());
                    }
                }
                break;
            }
        case ROLES:
            {
                for (Role r : database.getAllRoles()) {
                    if (admin || session.getUser().isRoleGranted(r)) {
                        add(rows, // NAME
                        identifier(r.getName()), // REMARKS
                        replaceNullWithEmpty(r.getComment()), // ID
                        "" + r.getId());
                    }
                }
                break;
            }
        case RIGHTS:
            {
                if (admin) {
                    for (Right r : database.getAllRights()) {
                        Role role = r.getGrantedRole();
                        DbObject grantee = r.getGrantee();
                        String rightType = grantee.getType() == DbObject.USER ? "USER" : "ROLE";
                        if (role == null) {
                            DbObject object = r.getGrantedObject();
                            Schema schema = null;
                            Table table = null;
                            if (object != null) {
                                if (object instanceof Schema) {
                                    schema = (Schema) object;
                                } else if (object instanceof Table) {
                                    table = (Table) object;
                                    schema = table.getSchema();
                                }
                            }
                            String tableName = (table != null) ? identifier(table.getName()) : "";
                            String schemaName = (schema != null) ? identifier(schema.getName()) : "";
                            if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                                continue;
                            }
                            add(rows, // GRANTEE
                            identifier(grantee.getName()), // GRANTEETYPE
                            rightType, // GRANTEDROLE
                            "", // RIGHTS
                            r.getRights(), // TABLE_SCHEMA
                            schemaName, // TABLE_NAME
                            tableName, // ID
                            "" + r.getId());
                        } else {
                            add(rows, // GRANTEE
                            identifier(grantee.getName()), // GRANTEETYPE
                            rightType, // GRANTEDROLE
                            identifier(role.getName()), // RIGHTS
                            "", // TABLE_SCHEMA
                            "", // TABLE_NAME
                            "", // ID
                            "" + r.getId());
                        }
                    }
                }
                break;
            }
        case FUNCTION_ALIASES:
            {
                for (SchemaObject aliasAsSchemaObject : database.getAllSchemaObjects(DbObject.FUNCTION_ALIAS)) {
                    FunctionAlias alias = (FunctionAlias) aliasAsSchemaObject;
                    JavaMethod[] methods;
                    try {
                        methods = alias.getJavaMethods();
                    } catch (DbException e) {
                        methods = new JavaMethod[0];
                    }
                    for (FunctionAlias.JavaMethod method : methods) {
                        int returnsResult = method.getDataType() == Value.NULL ? DatabaseMetaData.procedureNoResult : DatabaseMetaData.procedureReturnsResult;
                        add(rows, // ALIAS_CATALOG
                        catalog, // ALIAS_SCHEMA
                        alias.getSchema().getName(), // ALIAS_NAME
                        identifier(alias.getName()), // JAVA_CLASS
                        alias.getJavaClassName(), // JAVA_METHOD
                        alias.getJavaMethodName(), // DATA_TYPE
                        "" + DataType.convertTypeToSQLType(method.getDataType()), // TYPE_NAME
                        DataType.getDataType(method.getDataType()).name, // COLUMN_COUNT INT
                        "" + method.getParameterCount(), // RETURNS_RESULT SMALLINT
                        "" + returnsResult, // REMARKS
                        replaceNullWithEmpty(alias.getComment()), // ID
                        "" + alias.getId(), // SOURCE
                        alias.getSource());
                    }
                }
                for (UserAggregate agg : database.getAllAggregates()) {
                    int returnsResult = DatabaseMetaData.procedureReturnsResult;
                    add(rows, // ALIAS_CATALOG
                    catalog, // ALIAS_SCHEMA
                    Constants.SCHEMA_MAIN, // ALIAS_NAME
                    identifier(agg.getName()), // JAVA_CLASS
                    agg.getJavaClassName(), // JAVA_METHOD
                    "", // DATA_TYPE
                    "" + DataType.convertTypeToSQLType(Value.NULL), // TYPE_NAME
                    DataType.getDataType(Value.NULL).name, // COLUMN_COUNT INT
                    "1", // RETURNS_RESULT SMALLINT
                    "" + returnsResult, // REMARKS
                    replaceNullWithEmpty(agg.getComment()), // ID
                    "" + agg.getId(), // SOURCE
                    "");
                }
                break;
            }
        case FUNCTION_COLUMNS:
            {
                for (SchemaObject aliasAsSchemaObject : database.getAllSchemaObjects(DbObject.FUNCTION_ALIAS)) {
                    FunctionAlias alias = (FunctionAlias) aliasAsSchemaObject;
                    JavaMethod[] methods;
                    try {
                        methods = alias.getJavaMethods();
                    } catch (DbException e) {
                        methods = new JavaMethod[0];
                    }
                    for (FunctionAlias.JavaMethod method : methods) {
                        // Add return column index 0
                        if (method.getDataType() != Value.NULL) {
                            DataType dt = DataType.getDataType(method.getDataType());
                            add(rows, // ALIAS_CATALOG
                            catalog, // ALIAS_SCHEMA
                            alias.getSchema().getName(), // ALIAS_NAME
                            identifier(alias.getName()), // JAVA_CLASS
                            alias.getJavaClassName(), // JAVA_METHOD
                            alias.getJavaMethodName(), // COLUMN_COUNT
                            "" + method.getParameterCount(), // POS INT
                            "0", // COLUMN_NAME
                            "P0", // DATA_TYPE
                            "" + DataType.convertTypeToSQLType(method.getDataType()), // TYPE_NAME
                            dt.name, // PRECISION INT
                            "" + MathUtils.convertLongToInt(dt.defaultPrecision), // SCALE
                            "" + dt.defaultScale, // RADIX
                            "10", // NULLABLE SMALLINT
                            "" + DatabaseMetaData.columnNullableUnknown, // COLUMN_TYPE
                            "" + DatabaseMetaData.procedureColumnReturn, // REMARKS
                            "", // COLUMN_DEFAULT
                            null);
                        }
                        Class<?>[] columnList = method.getColumnClasses();
                        for (int k = 0; k < columnList.length; k++) {
                            if (method.hasConnectionParam() && k == 0) {
                                continue;
                            }
                            Class<?> clazz = columnList[k];
                            int dataType = DataType.getTypeFromClass(clazz);
                            DataType dt = DataType.getDataType(dataType);
                            int nullable = clazz.isPrimitive() ? DatabaseMetaData.columnNoNulls : DatabaseMetaData.columnNullable;
                            add(rows, // ALIAS_CATALOG
                            catalog, // ALIAS_SCHEMA
                            alias.getSchema().getName(), // ALIAS_NAME
                            identifier(alias.getName()), // JAVA_CLASS
                            alias.getJavaClassName(), // JAVA_METHOD
                            alias.getJavaMethodName(), // COLUMN_COUNT
                            "" + method.getParameterCount(), // POS INT
                            "" + (k + (method.hasConnectionParam() ? 0 : 1)), // COLUMN_NAME
                            "P" + (k + 1), // DATA_TYPE
                            "" + DataType.convertTypeToSQLType(dt.type), // TYPE_NAME
                            dt.name, // PRECISION INT
                            "" + MathUtils.convertLongToInt(dt.defaultPrecision), // SCALE
                            "" + dt.defaultScale, // RADIX
                            "10", // NULLABLE SMALLINT
                            "" + nullable, // COLUMN_TYPE
                            "" + DatabaseMetaData.procedureColumnIn, // REMARKS
                            "", // COLUMN_DEFAULT
                            null);
                        }
                    }
                }
                break;
            }
        case SCHEMATA:
            {
                String collation = database.getCompareMode().getName();
                for (Schema schema : database.getAllSchemas()) {
                    add(rows, // CATALOG_NAME
                    catalog, // SCHEMA_NAME
                    identifier(schema.getName()), // SCHEMA_OWNER
                    identifier(schema.getOwner().getName()), // DEFAULT_CHARACTER_SET_NAME
                    CHARACTER_SET_NAME, // DEFAULT_COLLATION_NAME
                    collation, // IS_DEFAULT
                    Constants.SCHEMA_MAIN.equals(schema.getName()) ? "TRUE" : "FALSE", // REMARKS
                    replaceNullWithEmpty(schema.getComment()), // ID
                    "" + schema.getId());
                }
                break;
            }
        case TABLE_PRIVILEGES:
            {
                for (Right r : database.getAllRights()) {
                    DbObject object = r.getGrantedObject();
                    if (!(object instanceof Table)) {
                        continue;
                    }
                    Table table = (Table) object;
                    if (hideTable(table, session)) {
                        continue;
                    }
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    addPrivileges(rows, r.getGrantee(), catalog, table, null, r.getRightMask());
                }
                break;
            }
        case COLUMN_PRIVILEGES:
            {
                for (Right r : database.getAllRights()) {
                    DbObject object = r.getGrantedObject();
                    if (!(object instanceof Table)) {
                        continue;
                    }
                    Table table = (Table) object;
                    if (hideTable(table, session)) {
                        continue;
                    }
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    DbObject grantee = r.getGrantee();
                    int mask = r.getRightMask();
                    for (Column column : table.getColumns()) {
                        addPrivileges(rows, grantee, catalog, table, column.getName(), mask);
                    }
                }
                break;
            }
        case COLLATIONS:
            {
                for (Locale l : Collator.getAvailableLocales()) {
                    add(rows, // NAME
                    CompareMode.getName(l), // KEY
                    l.toString());
                }
                break;
            }
        case VIEWS:
            {
                for (Table table : getAllTables(session)) {
                    if (table.getTableType() != TableType.VIEW) {
                        continue;
                    }
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    TableView view = (TableView) table;
                    add(rows, // TABLE_CATALOG
                    catalog, // TABLE_SCHEMA
                    identifier(table.getSchema().getName()), // TABLE_NAME
                    tableName, // VIEW_DEFINITION
                    table.getCreateSQL(), // CHECK_OPTION
                    "NONE", // IS_UPDATABLE
                    "NO", // STATUS
                    view.isInvalid() ? "INVALID" : "VALID", // REMARKS
                    replaceNullWithEmpty(view.getComment()), // ID
                    "" + view.getId());
                }
                break;
            }
        case IN_DOUBT:
            {
                ArrayList<InDoubtTransaction> prepared = database.getInDoubtTransactions();
                if (prepared != null && admin) {
                    for (InDoubtTransaction prep : prepared) {
                        add(rows, // TRANSACTION
                        prep.getTransactionName(), // STATE
                        prep.getState());
                    }
                }
                break;
            }
        case CROSS_REFERENCES:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.CONSTRAINT)) {
                    Constraint constraint = (Constraint) obj;
                    if (constraint.getConstraintType() != Constraint.Type.REFERENTIAL) {
                        continue;
                    }
                    ConstraintReferential ref = (ConstraintReferential) constraint;
                    IndexColumn[] cols = ref.getColumns();
                    IndexColumn[] refCols = ref.getRefColumns();
                    Table tab = ref.getTable();
                    Table refTab = ref.getRefTable();
                    String tableName = identifier(refTab.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    int update = getRefAction(ref.getUpdateAction());
                    int delete = getRefAction(ref.getDeleteAction());
                    for (int j = 0; j < cols.length; j++) {
                        add(rows, // PKTABLE_CATALOG
                        catalog, // PKTABLE_SCHEMA
                        identifier(refTab.getSchema().getName()), // PKTABLE_NAME
                        identifier(refTab.getName()), // PKCOLUMN_NAME
                        identifier(refCols[j].column.getName()), // FKTABLE_CATALOG
                        catalog, // FKTABLE_SCHEMA
                        identifier(tab.getSchema().getName()), // FKTABLE_NAME
                        identifier(tab.getName()), // FKCOLUMN_NAME
                        identifier(cols[j].column.getName()), // ORDINAL_POSITION
                        String.valueOf(j + 1), // UPDATE_RULE SMALLINT
                        String.valueOf(update), // DELETE_RULE SMALLINT
                        String.valueOf(delete), // FK_NAME
                        identifier(ref.getName()), // PK_NAME
                        identifier(ref.getUniqueIndex().getName()), // DEFERRABILITY
                        "" + DatabaseMetaData.importedKeyNotDeferrable);
                    }
                }
                break;
            }
        case CONSTRAINTS:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.CONSTRAINT)) {
                    Constraint constraint = (Constraint) obj;
                    Constraint.Type constraintType = constraint.getConstraintType();
                    String checkExpression = null;
                    IndexColumn[] indexColumns = null;
                    Table table = constraint.getTable();
                    if (hideTable(table, session)) {
                        continue;
                    }
                    Index index = constraint.getUniqueIndex();
                    String uniqueIndexName = null;
                    if (index != null) {
                        uniqueIndexName = index.getName();
                    }
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    if (constraintType == Constraint.Type.CHECK) {
                        checkExpression = ((ConstraintCheck) constraint).getExpression().getSQL();
                    } else if (constraintType == Constraint.Type.UNIQUE || constraintType == Constraint.Type.PRIMARY_KEY) {
                        indexColumns = ((ConstraintUnique) constraint).getColumns();
                    } else if (constraintType == Constraint.Type.REFERENTIAL) {
                        indexColumns = ((ConstraintReferential) constraint).getColumns();
                    }
                    String columnList = null;
                    if (indexColumns != null) {
                        StatementBuilder buff = new StatementBuilder();
                        for (IndexColumn col : indexColumns) {
                            buff.appendExceptFirst(",");
                            buff.append(col.column.getName());
                        }
                        columnList = buff.toString();
                    }
                    add(rows, // CONSTRAINT_CATALOG
                    catalog, // CONSTRAINT_SCHEMA
                    identifier(constraint.getSchema().getName()), // CONSTRAINT_NAME
                    identifier(constraint.getName()), // CONSTRAINT_TYPE
                    constraintType == Constraint.Type.PRIMARY_KEY ? constraintType.getSqlName() : constraintType.name(), // TABLE_CATALOG
                    catalog, // TABLE_SCHEMA
                    identifier(table.getSchema().getName()), // TABLE_NAME
                    tableName, // UNIQUE_INDEX_NAME
                    uniqueIndexName, // CHECK_EXPRESSION
                    checkExpression, // COLUMN_LIST
                    columnList, // REMARKS
                    replaceNullWithEmpty(constraint.getComment()), // SQL
                    constraint.getCreateSQL(), // ID
                    "" + constraint.getId());
                }
                break;
            }
        case CONSTANTS:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.CONSTANT)) {
                    Constant constant = (Constant) obj;
                    ValueExpression expr = constant.getValue();
                    add(rows, // CONSTANT_CATALOG
                    catalog, // CONSTANT_SCHEMA
                    identifier(constant.getSchema().getName()), // CONSTANT_NAME
                    identifier(constant.getName()), // CONSTANT_TYPE
                    "" + DataType.convertTypeToSQLType(expr.getType()), // REMARKS
                    replaceNullWithEmpty(constant.getComment()), // SQL
                    expr.getSQL(), // ID
                    "" + constant.getId());
                }
                break;
            }
        case DOMAINS:
            {
                for (UserDataType dt : database.getAllUserDataTypes()) {
                    Column col = dt.getColumn();
                    add(rows, // DOMAIN_CATALOG
                    catalog, // DOMAIN_SCHEMA
                    Constants.SCHEMA_MAIN, // DOMAIN_NAME
                    identifier(dt.getName()), // COLUMN_DEFAULT
                    col.getDefaultSQL(), // IS_NULLABLE
                    col.isNullable() ? "YES" : "NO", // DATA_TYPE
                    "" + col.getDataType().sqlType, // PRECISION INT
                    "" + col.getPrecisionAsInt(), // SCALE INT
                    "" + col.getScale(), // TYPE_NAME
                    col.getDataType().name, // SELECTIVITY INT
                    "" + col.getSelectivity(), // CHECK_CONSTRAINT
                    "" + col.getCheckConstraintSQL(session, "VALUE"), // REMARKS
                    replaceNullWithEmpty(dt.getComment()), // SQL
                    "" + dt.getCreateSQL(), // ID
                    "" + dt.getId());
                }
                break;
            }
        case TRIGGERS:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.TRIGGER)) {
                    TriggerObject trigger = (TriggerObject) obj;
                    Table table = trigger.getTable();
                    add(rows, // TRIGGER_CATALOG
                    catalog, // TRIGGER_SCHEMA
                    identifier(trigger.getSchema().getName()), // TRIGGER_NAME
                    identifier(trigger.getName()), // TRIGGER_TYPE
                    trigger.getTypeNameList(), // TABLE_CATALOG
                    catalog, // TABLE_SCHEMA
                    identifier(table.getSchema().getName()), // TABLE_NAME
                    identifier(table.getName()), // BEFORE BIT
                    "" + trigger.isBefore(), // JAVA_CLASS
                    trigger.getTriggerClassName(), // QUEUE_SIZE INT
                    "" + trigger.getQueueSize(), // NO_WAIT BIT
                    "" + trigger.isNoWait(), // REMARKS
                    replaceNullWithEmpty(trigger.getComment()), // SQL
                    trigger.getCreateSQL(), // ID
                    "" + trigger.getId());
                }
                break;
            }
        case SESSIONS:
            {
                long now = System.currentTimeMillis();
                for (Session s : database.getSessions(false)) {
                    if (admin || s == session) {
                        Command command = s.getCurrentCommand();
                        long start = s.getCurrentCommandStart();
                        if (start == 0) {
                            start = now;
                        }
                        add(rows, // ID
                        "" + s.getId(), // USER_NAME
                        s.getUser().getName(), // SESSION_START
                        new Timestamp(s.getSessionStart()).toString(), // STATEMENT
                        command == null ? null : command.toString(), // STATEMENT_START
                        new Timestamp(start).toString(), // CONTAINS_UNCOMMITTED
                        "" + s.containsUncommitted());
                    }
                }
                break;
            }
        case LOCKS:
            {
                for (Session s : database.getSessions(false)) {
                    if (admin || s == session) {
                        for (Table table : s.getLocks()) {
                            add(rows, // TABLE_SCHEMA
                            table.getSchema().getName(), // TABLE_NAME
                            table.getName(), // SESSION_ID
                            "" + s.getId(), // LOCK_TYPE
                            table.isLockedExclusivelyBy(s) ? "WRITE" : "READ");
                        }
                    }
                }
                break;
            }
        case SESSION_STATE:
            {
                for (String name : session.getVariableNames()) {
                    Value v = session.getVariable(name);
                    add(rows, // KEY
                    "@" + name, // SQL
                    "SET @" + name + " " + v.getSQL());
                }
                for (Table table : session.getLocalTempTables()) {
                    add(rows, // KEY
                    "TABLE " + table.getName(), // SQL
                    table.getCreateSQL());
                }
                String[] path = session.getSchemaSearchPath();
                if (path != null && path.length > 0) {
                    StatementBuilder buff = new StatementBuilder("SET SCHEMA_SEARCH_PATH ");
                    for (String p : path) {
                        buff.appendExceptFirst(", ");
                        buff.append(StringUtils.quoteIdentifier(p));
                    }
                    add(rows, // KEY
                    "SCHEMA_SEARCH_PATH", // SQL
                    buff.toString());
                }
                String schema = session.getCurrentSchemaName();
                if (schema != null) {
                    add(rows, // KEY
                    "SCHEMA", // SQL
                    "SET SCHEMA " + StringUtils.quoteIdentifier(schema));
                }
                break;
            }
        case QUERY_STATISTICS:
            {
                QueryStatisticsData control = database.getQueryStatisticsData();
                if (control != null) {
                    for (QueryStatisticsData.QueryEntry entry : control.getQueries()) {
                        add(rows, // SQL_STATEMENT
                        entry.sqlStatement, // EXECUTION_COUNT
                        "" + entry.count, // MIN_EXECUTION_TIME
                        "" + entry.executionTimeMinNanos / 1000d / 1000, // MAX_EXECUTION_TIME
                        "" + entry.executionTimeMaxNanos / 1000d / 1000, // CUMULATIVE_EXECUTION_TIME
                        "" + entry.executionTimeCumulativeNanos / 1000d / 1000, // AVERAGE_EXECUTION_TIME
                        "" + entry.executionTimeMeanNanos / 1000d / 1000, // STD_DEV_EXECUTION_TIME
                        "" + entry.getExecutionTimeStandardDeviation() / 1000d / 1000, // MIN_ROW_COUNT
                        "" + entry.rowCountMin, // MAX_ROW_COUNT
                        "" + entry.rowCountMax, // CUMULATIVE_ROW_COUNT
                        "" + entry.rowCountCumulative, // AVERAGE_ROW_COUNT
                        "" + entry.rowCountMean, // STD_DEV_ROW_COUNT
                        "" + entry.getRowCountStandardDeviation());
                    }
                }
                break;
            }
        case SYNONYMS:
            {
                for (TableSynonym synonym : database.getAllSynonyms()) {
                    add(rows, // SYNONYM_CATALOG
                    catalog, // SYNONYM_SCHEMA
                    identifier(synonym.getSchema().getName()), // SYNONYM_NAME
                    identifier(synonym.getName()), // SYNONYM_FOR
                    synonym.getSynonymForName(), // SYNONYM_FOR_SCHEMA
                    synonym.getSynonymForSchema().getName(), // TYPE NAME
                    "SYNONYM", // STATUS
                    "VALID", // REMARKS
                    replaceNullWithEmpty(synonym.getComment()), // ID
                    "" + synonym.getId());
                }
                break;
            }
        case TABLE_CONSTRAINTS:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.CONSTRAINT)) {
                    Constraint constraint = (Constraint) obj;
                    Constraint.Type constraintType = constraint.getConstraintType();
                    Table table = constraint.getTable();
                    if (hideTable(table, session)) {
                        continue;
                    }
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    add(rows, // CONSTRAINT_CATALOG
                    catalog, // CONSTRAINT_SCHEMA
                    identifier(constraint.getSchema().getName()), // CONSTRAINT_NAME
                    identifier(constraint.getName()), // CONSTRAINT_TYPE
                    constraintType.getSqlName(), // TABLE_CATALOG
                    catalog, // TABLE_SCHEMA
                    identifier(table.getSchema().getName()), // TABLE_NAME
                    tableName, // IS_DEFERRABLE
                    "NO", // INITIALLY_DEFERRED
                    "NO");
                }
                break;
            }
        case KEY_COLUMN_USAGE:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.CONSTRAINT)) {
                    Constraint constraint = (Constraint) obj;
                    Constraint.Type constraintType = constraint.getConstraintType();
                    IndexColumn[] indexColumns = null;
                    Table table = constraint.getTable();
                    if (hideTable(table, session)) {
                        continue;
                    }
                    String tableName = identifier(table.getName());
                    if (!checkIndex(session, tableName, indexFrom, indexTo)) {
                        continue;
                    }
                    if (constraintType == Constraint.Type.UNIQUE || constraintType == Constraint.Type.PRIMARY_KEY) {
                        indexColumns = ((ConstraintUnique) constraint).getColumns();
                    } else if (constraintType == Constraint.Type.REFERENTIAL) {
                        indexColumns = ((ConstraintReferential) constraint).getColumns();
                    }
                    if (indexColumns == null) {
                        continue;
                    }
                    ConstraintUnique referenced;
                    if (constraintType == Constraint.Type.REFERENTIAL) {
                        referenced = lookupUniqueForReferential((ConstraintReferential) constraint);
                    } else {
                        referenced = null;
                    }
                    for (int i = 0; i < indexColumns.length; i++) {
                        IndexColumn indexColumn = indexColumns[i];
                        String ordinalPosition = Integer.toString(i + 1);
                        String positionInUniqueConstraint;
                        if (constraintType == Constraint.Type.REFERENTIAL) {
                            positionInUniqueConstraint = ordinalPosition;
                            if (referenced != null) {
                                Column c = ((ConstraintReferential) constraint).getRefColumns()[i].column;
                                IndexColumn[] refColumns = referenced.getColumns();
                                for (int j = 0; j < refColumns.length; j++) {
                                    if (refColumns[j].column.equals(c)) {
                                        positionInUniqueConstraint = Integer.toString(j + 1);
                                        break;
                                    }
                                }
                            }
                        } else {
                            positionInUniqueConstraint = null;
                        }
                        add(rows, // CONSTRAINT_CATALOG
                        catalog, // CONSTRAINT_SCHEMA
                        identifier(constraint.getSchema().getName()), // CONSTRAINT_NAME
                        identifier(constraint.getName()), // TABLE_CATALOG
                        catalog, // TABLE_SCHEMA
                        identifier(table.getSchema().getName()), // TABLE_NAME
                        tableName, // COLUMN_NAME
                        indexColumn.columnName, // ORDINAL_POSITION
                        ordinalPosition, // POSITION_IN_UNIQUE_CONSTRAINT
                        positionInUniqueConstraint);
                    }
                }
                break;
            }
        case REFERENTIAL_CONSTRAINTS:
            {
                for (SchemaObject obj : database.getAllSchemaObjects(DbObject.CONSTRAINT)) {
                    if (((Constraint) obj).getConstraintType() != Constraint.Type.REFERENTIAL) {
                        continue;
                    }
                    ConstraintReferential constraint = (ConstraintReferential) obj;
                    Table table = constraint.getTable();
                    if (hideTable(table, session)) {
                        continue;
                    }
                    // Should be referenced unique constraint, but H2 uses indexes instead.
                    // So try to find matching unique constraint first and there is no such
                    // constraint use index name to return something.
                    SchemaObject unique = lookupUniqueForReferential(constraint);
                    if (unique == null) {
                        unique = constraint.getUniqueIndex();
                    }
                    add(rows, // CONSTRAINT_CATALOG
                    catalog, // CONSTRAINT_SCHEMA
                    identifier(constraint.getSchema().getName()), // CONSTRAINT_NAME
                    identifier(constraint.getName()), // UNIQUE_CONSTRAINT_CATALOG
                    catalog, // UNIQUE_CONSTRAINT_SCHEMA
                    identifier(unique.getSchema().getName()), // UNIQUE_CONSTRAINT_NAME
                    unique.getName(), // MATCH_OPTION
                    "NONE", // UPDATE_RULE
                    constraint.getUpdateAction().getSqlName(), // DELETE_RULE
                    constraint.getDeleteAction().getSqlName());
                }
                break;
            }
        default:
            DbException.throwInternalError("type=" + type);
    }
    return rows;
}

Example 5 with ValueExpression

use of org.h2.expression.ValueExpression 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;
        Integer type = OPERATION_TYPE.get(operation);
        if (type == Operation.NEGATE) {
            assert OPERATION_RIGHT.get(operation) == null;
            return new GridSqlOperation(GridSqlOperationType.NEGATE, parseExpression(OPERATION_LEFT.get(operation), calcTypes));
        }
        return new GridSqlOperation(OPERATION_OP_TYPES[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)
            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) {
        int typeId = TYPE.get((Aggregate) expression);
        if (GridSqlAggregateFunction.isValidType(typeId)) {
            GridSqlAggregateFunction res = new GridSqlAggregateFunction(DISTINCT.get((Aggregate) expression), typeId);
            Expression on = ON.get((Aggregate) expression);
            if (on != null)
                res.addChild(parseExpression(on, 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() + ']');
}