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添加SQL统计功能，统计SQL中所使用的表和字段

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git-svn-id: http://code.alibabatech.com/svn/druid/trunk@271 b9813039-fb51-4c41-a8b9-e21c2acb5095
This commit is contained in:
wenshao
2011-06-21 16:07:12 +00:00
parent 6bb8c29997
commit 18cc6c3a21
9 changed files with 425 additions and 1 deletions
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src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/visitor/OracleSchemaStatVisitor.java
+17 -1
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@@ -9,6 +9,7 @@ import java.util.Set;
import com.alibaba.druid.sql.ast.SQLObject;
import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.expr.SQLPropertyExpr;
import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
import com.alibaba.druid.sql.ast.statement.SQLExprTableSource;
import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
import com.alibaba.druid.sql.ast.statement.SQLJoinTableSource;
@@ -114,6 +115,14 @@ public class OracleSchemaStatVisitor extends OracleASTVIsitorAdapter {
}
public boolean visit(OracleDeleteStatement x) {
return visit((SQLDeleteStatement) x);
}
public void endVisit(OracleDeleteStatement x) {
aliasLocal.set(null);
}
public boolean visit(SQLDeleteStatement x) {
aliasLocal.set(new HashMap<String, String>());
x.putAttribute("_original_use_mode", modeLocal.get());
@@ -123,13 +132,20 @@ public class OracleSchemaStatVisitor extends OracleASTVIsitorAdapter {
String ident = ((SQLIdentifierExpr) x.getTableName()).getName();
currentTableLocal.set(ident);
TableStat stat = tableStats.get(ident);
if (stat == null) {
stat = new TableStat();
tableStats.put(ident, stat);
}
stat.incrementDeleteCount();
accept(x.getWhere());
return false;
}
public void endVisit(OracleDeleteStatement x) {
public void endVisit(SQLDeleteStatement x) {
aliasLocal.set(null);
}