package sqlancer.h2;
import java.util.List;
import java.util.stream.Collectors;
import sqlancer.Randomly;
import sqlancer.common.gen.AbstractInsertGenerator;
import sqlancer.common.query.ExpectedErrors;
import sqlancer.common.query.SQLQueryAdapter;
import sqlancer.h2.H2Provider.H2GlobalState;
import sqlancer.h2.H2Schema.H2Column;
import sqlancer.h2.H2Schema.H2Table;
public class H2InsertGenerator extends AbstractInsertGenerator {
private final H2GlobalState globalState;
private final ExpectedErrors errors = new ExpectedErrors();
private final H2ExpressionGenerator gen;
public H2InsertGenerator(H2GlobalState globalState) {
this.globalState = globalState;
gen = new H2ExpressionGenerator(globalState);
}
public static SQLQueryAdapter getQuery(H2GlobalState globalState) {
return new H2InsertGenerator(globalState).generate();
}
private SQLQueryAdapter generate() {
boolean mergeInto = false; // Randomly.getBooleanWithRatherLowProbability();
if (mergeInto) {
sb.append("MERGE INTO ");
errors.add("Index \"PRIMARY_KEY_\" not found");
errors.add("contains null values");
errors.add("Valid MERGE INTO statement with at least one updatable column");
} else {
sb.append("INSERT INTO ");
}
H2Table table = globalState.getSchema().getRandomTable(t -> !t.isView());
List columns = table.getRandomNonEmptyColumnSubset();
sb.append(table.getName());
sb.append("(");
sb.append(columns.stream().map(c -> c.getName()).collect(Collectors.joining(", ")));
sb.append(")");
if (mergeInto && Randomly.getBoolean()) {
sb.append(" KEY(");
sb.append(table.getRandomNonEmptyColumnSubset().stream().map(c -> c.getName())
.collect(Collectors.joining(", ")));
sb.append(")");
}
sb.append(" VALUES ");
insertColumns(columns);
H2Errors.addInsertErrors(errors);
H2Errors.addExpressionErrors(errors); // generated columns
return new SQLQueryAdapter(sb.toString(), errors);
}
@Override
protected void insertValue(H2Column columnH2) {
sb.append(H2ToStringVisitor.asString(gen.generateConstant()));
}
}