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Code Issues Releases Wiki Activity

improve SQLEvalVisitor

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wenshao
2012-11-12 00:10:44 +08:00
parent c2c66f5ddc
commit 795beb3451
2 changed files with 13 additions and 9 deletions
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src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
+5 -8
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@@ -441,20 +441,17 @@ public class SQLEvalVisitorUtils {
}
if (nullFrom) {
Object[] row = new Object[queryBlock.getSelectList().size()];
List<Object> row = new ArrayList<Object>(queryBlock.getSelectList().size());
for (int i = 0; i < queryBlock.getSelectList().size(); ++i) {
SQLSelectItem item = queryBlock.getSelectList().get(i);
item.getExpr().accept(visitor);
Object cell = item.getExpr().getAttribute(EVAL_VALUE);
row[i] = cell;
}
Object result;
if (row.length == 1) {
result = row[0];
} else {
result = row;
row.add(cell);
}
List<List<Object>> rows = new ArrayList<List<Object>>(1);
rows.add(row);
Object result = rows;
queryBlock.putAttribute(EVAL_VALUE, result);
x.getSubQuery().putAttribute(EVAL_VALUE, result);
x.putAttribute(EVAL_VALUE, result);