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DuckDBUpdateGenerator.java
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52 lines (43 loc) · 1.83 KB
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package sqlancer.duckdb.gen;
import java.util.List;
import sqlancer.Randomly;
import sqlancer.common.gen.AbstractUpdateGenerator;
import sqlancer.common.query.SQLQueryAdapter;
import sqlancer.duckdb.DuckDBErrors;
import sqlancer.duckdb.DuckDBProvider.DuckDBGlobalState;
import sqlancer.duckdb.DuckDBSchema.DuckDBColumn;
import sqlancer.duckdb.DuckDBSchema.DuckDBTable;
import sqlancer.duckdb.DuckDBToStringVisitor;
import sqlancer.duckdb.ast.DuckDBExpression;
public final class DuckDBUpdateGenerator extends AbstractUpdateGenerator<DuckDBColumn> {
private final DuckDBGlobalState globalState;
private DuckDBExpressionGenerator gen;
private DuckDBUpdateGenerator(DuckDBGlobalState globalState) {
this.globalState = globalState;
}
public static SQLQueryAdapter getQuery(DuckDBGlobalState globalState) {
return new DuckDBUpdateGenerator(globalState).generate();
}
private SQLQueryAdapter generate() {
DuckDBTable table = globalState.getSchema().getRandomTable(t -> !t.isView());
List<DuckDBColumn> columns = table.getRandomNonEmptyColumnSubsetFilter(p -> !p.getName().equals("rowid"));
gen = new DuckDBExpressionGenerator(globalState).setColumns(table.getColumns());
sb.append("UPDATE ");
sb.append(table.getName());
sb.append(" SET ");
updateColumns(columns);
DuckDBErrors.addInsertErrors(errors);
return new SQLQueryAdapter(sb.toString(), errors);
}
@Override
protected void updateValue(DuckDBColumn column) {
DuckDBExpression expr;
if (Randomly.getBooleanWithSmallProbability()) {
expr = gen.generateExpression();
DuckDBErrors.addExpressionErrors(errors);
} else {
expr = gen.generateConstant();
}
sb.append(DuckDBToStringVisitor.asString(expr));
}
}