@Override
public String getSQL() {
StatementBuilder buff = new StatementBuilder("(");
buff.append(left.getSQL()).append(" IN(");
for (Expression e : valueList) {
buff.appendExceptFirst(", ");
buff.append(e.getSQL());
}
return buff.append("))").toString();
}
@Override
public String getSQL() {
String text;
switch (type) {
case GROUP_CONCAT:
return getSQLGroupConcat();
case COUNT_ALL:
return "COUNT(*)";
case COUNT:
text = "COUNT";
break;
case SELECTIVITY:
text = "SELECTIVITY";
break;
case HISTOGRAM:
text = "HISTOGRAM";
break;
case SUM:
text = "SUM";
break;
case MIN:
text = "MIN";
break;
case MAX:
text = "MAX";
break;
case AVG:
text = "AVG";
break;
case STDDEV_POP:
text = "STDDEV_POP";
break;
case STDDEV_SAMP:
text = "STDDEV_SAMP";
break;
case VAR_POP:
text = "VAR_POP";
break;
case VAR_SAMP:
text = "VAR_SAMP";
break;
case BOOL_AND:
text = "BOOL_AND";
break;
case BOOL_OR:
text = "BOOL_OR";
break;
default:
throw DbException.throwInternalError("type=" + type);
}
if (distinct) {
return text + "(DISTINCT " + on.getSQL() + ")";
}
return text + StringUtils.enclose(on.getSQL());
}
/** Returns SQL for default value. */
public String getDefaultSQL() {
String ddl = null;
ddl = defaultExpression == null ? null : defaultExpression.getSQL();
return ddl;
}
public String getSQL() {
StringBuffer sb = new StringBuffer();
switch (type) {
case StatementTypes.SIGNAL:
sb.append(Tokens.T_SIGNAL);
break;
case StatementTypes.RESIGNAL:
sb.append(Tokens.T_RESIGNAL);
break;
// todo
case StatementTypes.ITERATE:
sb.append(Tokens.T_ITERATE).append(' ').append(label);
break;
case StatementTypes.LEAVE:
sb.append(Tokens.T_LEAVE).append(' ').append(label);
break;
case StatementTypes.RETURN:
/*
sb.append(Tokens.T_RETURN);
if (expression != null) {
sb.append(' ').append(expression.getSQL());
}
break;
*/
return sql;
case StatementTypes.CONDITION:
sb.append(expression.getSQL());
break;
case StatementTypes.ASSIGNMENT:
sb.append(Tokens.T_SET).append(' ');
sb.append(variable.getName().statementName).append(' ');
sb.append('=').append(' ').append(expression.getSQL());
break;
}
return sb.toString();
}
@Override
public String getSQL() {
StatementBuilder buff = new StatementBuilder();
buff.append(Parser.quoteIdentifier(userAggregate.getName())).append('(');
for (Expression e : args) {
buff.appendExceptFirst(", ");
buff.append(e.getSQL());
}
return buff.append(')').toString();
}
public String getSQL(boolean isDistributed) {
StatementBuilder buff = new StatementBuilder(getName());
buff.append('(');
int i = 0;
for (Expression e : args) {
buff.appendExceptFirst(", ");
buff.append(columnList[i++].getCreateSQL()).append('=').append(e.getSQL(isDistributed));
}
return buff.append(')').toString();
}
@Override
public String getSQL() {
StatementBuilder buff = new StatementBuilder("(");
for (Expression e : list) {
buff.appendExceptFirst(", ");
buff.append(e.getSQL());
}
if (list.length == 1) {
buff.append(',');
}
return buff.append(')').toString();
}
private String getSQLGroupConcat() {
StatementBuilder buff = new StatementBuilder("GROUP_CONCAT(");
if (distinct) {
buff.append("DISTINCT ");
}
buff.append(on.getSQL());
if (groupConcatOrderList != null) {
buff.append(" ORDER BY ");
for (SelectOrderBy o : groupConcatOrderList) {
buff.appendExceptFirst(", ");
buff.append(o.expression.getSQL());
if (o.descending) {
buff.append(" DESC");
}
}
}
if (groupConcatSeparator != null) {
buff.append(" SEPARATOR ").append(groupConcatSeparator.getSQL());
}
return buff.append(')').toString();
}
public String getSQL() {
StatementBuilder buff = new StatementBuilder();
// TODO always append the schema once FUNCTIONS_IN_SCHEMA is enabled
if (functionAlias.getDatabase().getSettings().functionsInSchema
|| !functionAlias.getSchema().getName().equals(Constants.SCHEMA_MAIN)) {
buff.append(Parser.quoteIdentifier(functionAlias.getSchema().getName())).append('.');
}
buff.append(Parser.quoteIdentifier(functionAlias.getName())).append('(');
for (Expression e : args) {
buff.appendExceptFirst(", ");
buff.append(e.getSQL());
}
return buff.append(')').toString();
}
public String getSQL() {
StringBuffer sb = new StringBuffer();
switch (operationType) {
case StatementSet.VARIABLE_SET:
{
/** @todo - cover row assignment */
sb.append(Tokens.T_SET).append(' ');
sb.append(variables[0].getName().statementName).append(' ');
sb.append('=').append(' ').append(expression.getSQL());
break;
}
}
return sb.toString();
}
void recompile(Session session, Table newTable) {
String ddl = check.getSQL();
Scanner scanner = new Scanner(ddl);
ParserDQL parser = new ParserDQL(session, scanner);
parser.read();
parser.isCheckOrTriggerCondition = true;
Expression condition = parser.XreadBooleanValueExpression();
check = condition;
schemaObjectNames = parser.compileContext.getSchemaObjectNames();
// this workaround is here to stop LIKE optimisation (for proper scripting)
QuerySpecification s = Expression.getCheckSelect(session, newTable, check);
rangeVariable = s.rangeVariables[0];
rangeVariable.setForCheckConstraint();
}
public String getSQL() {
StringBuffer sb = new StringBuffer();
switch (type) {
case StatementTypes.RETURN:
/*
sb.append(Tokens.T_RETURN);
if (expression != null) {
sb.append(' ').append(expression.getSQL());
}
break;
*/
return sql;
case StatementTypes.CONDITION:
sb.append(expression.getSQL());
break;
}
return sb.toString();
}
/** Returns the SQL for the expression in CHECK clause */
public String getCheckSQL() {
return check.getSQL();
}
public String getSQL() {
StringBuffer sb = new StringBuffer();
switch (getConstraintType()) {
case Constraint.PRIMARY_KEY:
if (getMainColumns().length > 1
|| (getMainColumns().length == 1 && !getName().isReservedName())) {
if (!getName().isReservedName()) {
sb.append(Tokens.T_CONSTRAINT).append(' ');
sb.append(getName().statementName).append(' ');
}
sb.append(Tokens.T_PRIMARY).append(' ').append(Tokens.T_KEY);
getColumnList(getMain(), getMainColumns(), getMainColumns().length, sb);
}
break;
case Constraint.UNIQUE:
if (!getName().isReservedName()) {
sb.append(Tokens.T_CONSTRAINT).append(' ');
sb.append(getName().statementName);
sb.append(' ');
}
sb.append(Tokens.T_UNIQUE);
int[] col = getMainColumns();
getColumnList(getMain(), col, col.length, sb);
break;
case Constraint.FOREIGN_KEY:
if (isForward) {
sb.append(Tokens.T_ALTER).append(' ').append(Tokens.T_TABLE).append(' ');
sb.append(getRef().getName().getSchemaQualifiedStatementName());
sb.append(' ').append(Tokens.T_ADD).append(' ');
getFKStatement(sb);
} else {
getFKStatement(sb);
}
break;
case Constraint.CHECK:
if (isNotNull()) {
break;
}
if (!getName().isReservedName()) {
sb.append(Tokens.T_CONSTRAINT).append(' ');
sb.append(getName().statementName).append(' ');
}
sb.append(Tokens.T_CHECK).append('(');
sb.append(check.getSQL());
sb.append(')');
// should not throw as it is already tested OK
break;
}
return sb.toString();
}
public String getSQL() {
switch (opType) {
case OpTypes.DEFAULT:
return Tokens.T_DEFAULT;
case OpTypes.DYNAMIC_PARAM:
return Tokens.T_QUESTION;
case OpTypes.ASTERISK:
return "*";
case OpTypes.COALESCE:
return alias.getStatementName();
case OpTypes.DIAGNOSTICS_VARIABLE:
case OpTypes.VARIABLE:
case OpTypes.PARAMETER:
return column.getName().statementName;
case OpTypes.ROWNUM:
{
StringBuffer sb = new StringBuffer(Tokens.T_ROWNUM);
sb.append('(').append(')');
}
case OpTypes.COLUMN:
{
if (column == null) {
if (alias != null) {
return alias.getStatementName();
} else {
return columnName;
}
}
if (rangeVariable.tableAlias == null) {
return column.getName().getSchemaQualifiedStatementName();
} else {
StringBuffer sb = new StringBuffer();
sb.append(rangeVariable.tableAlias.getStatementName());
sb.append('.');
sb.append(column.getName().statementName);
return sb.toString();
}
}
case OpTypes.MULTICOLUMN:
{
if (nodes.length == 0) {
return "*";
}
StringBuffer sb = new StringBuffer();
for (int i = 0; i < nodes.length; i++) {
Expression e = nodes[i];
if (i > 0) {
sb.append(',');
}
String s = e.getSQL();
sb.append(s);
}
return sb.toString();
}
default:
throw Error.runtimeError(ErrorCode.U_S0500, "ExpressionColumn");
}
}
