forked from sqlancer/sqlancer
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathH2UpdateGenerator.java
More file actions
43 lines (37 loc) · 1.48 KB
/
H2UpdateGenerator.java
File metadata and controls
43 lines (37 loc) · 1.48 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
package sqlancer.h2;
import java.util.List;
import sqlancer.Randomly;
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 final class H2UpdateGenerator {
private H2UpdateGenerator() {
}
public static SQLQueryAdapter getQuery(H2GlobalState globalState) {
StringBuilder sb = new StringBuilder("UPDATE ");
ExpectedErrors errors = new ExpectedErrors();
H2Table table = globalState.getSchema().getRandomTable(t -> !t.isView());
sb.append(table.getName());
H2ExpressionGenerator gen = new H2ExpressionGenerator(globalState).setColumns(table.getColumns());
sb.append(" SET ");
List<H2Column> columns = table.getRandomNonEmptyColumnSubset();
for (int i = 0; i < columns.size(); i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(columns.get(i).getName());
sb.append("=");
sb.append(H2ToStringVisitor.asString(gen.generateConstant()));
}
H2Errors.addInsertErrors(errors);
H2Errors.addDeleteErrors(errors);
if (Randomly.getBoolean()) {
sb.append(" WHERE ");
sb.append(H2ToStringVisitor.asString(gen.generateExpression()));
}
H2Errors.addExpressionErrors(errors);
return new SQLQueryAdapter(sb.toString(), errors);
}
}