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TiDBDeleteGenerator.java
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62 lines (55 loc) · 2.35 KB
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package sqlancer.tidb.gen;
import java.sql.SQLException;
import java.util.stream.Collectors;
import sqlancer.Randomly;
import sqlancer.common.query.ExpectedErrors;
import sqlancer.common.query.SQLQueryAdapter;
import sqlancer.tidb.TiDBErrors;
import sqlancer.tidb.TiDBExpressionGenerator;
import sqlancer.tidb.TiDBProvider.TiDBGlobalState;
import sqlancer.tidb.TiDBSchema.TiDBTable;
import sqlancer.tidb.visitor.TiDBVisitor;
public final class TiDBDeleteGenerator {
private TiDBDeleteGenerator() {
}
public static SQLQueryAdapter getQuery(TiDBGlobalState globalState) throws SQLException {
ExpectedErrors errors = ExpectedErrors.newErrors().with(TiDBErrors.getExpressionErrors()).build();
TiDBTable table = globalState.getSchema().getRandomTable(t -> !t.isView());
TiDBExpressionGenerator gen = new TiDBExpressionGenerator(globalState).setColumns(table.getColumns());
StringBuilder sb = new StringBuilder("DELETE ");
if (Randomly.getBooleanWithSmallProbability()) {
sb.append("LOW_PRIORITY ");
}
if (Randomly.getBooleanWithSmallProbability()) {
sb.append("QUICK ");
}
if (Randomly.getBooleanWithSmallProbability()) {
sb.append("IGNORE ");
}
sb.append("FROM ");
sb.append(table.getName());
if (Randomly.getBoolean()) {
sb.append(" WHERE ");
sb.append(TiDBVisitor.asString(gen.generateExpression()));
errors.add("Truncated incorrect");
errors.add("Data truncation");
errors.add("Truncated incorrect FLOAT value");
}
if (Randomly.getBoolean()) {
sb.append(" ORDER BY ");
TiDBErrors.addExpressionErrors(errors);
sb.append(gen.generateOrderBys().stream().map(o -> TiDBVisitor.asString(o))
.collect(Collectors.joining(", ")));
}
if (Randomly.getBoolean()) {
sb.append(" LIMIT ");
sb.append(Randomly.getNotCachedInteger(0, Integer.MAX_VALUE));
}
errors.add("Bad Number");
errors.add("Truncated incorrect"); // https://github.com/pingcap/tidb/issues/24292
errors.add("is not valid for CHARACTER SET");
errors.add("Division by 0");
errors.add("error parsing regexp");
return new SQLQueryAdapter(sb.toString(), errors);
}
}