Alawn/Druid
1
0
Fork 0
mirror of https://github.com/alibaba/druid.git synced 2023-03-04 19:17:16 +00:00
Code Issues Releases Wiki Activity

fix postgresql parenthesized bug

Browse Source 
example:
1、(select * from a)
2、(select * from a) union all select * from b;
pg以括号开头的select语句会陷入死循环。
This commit is contained in:
huangtiande
2015-02-05 15:32:12 +08:00
parent 883d1fde6d
commit 947190c6a0
3 changed files with 48 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGSelectParser.java
+13
View File
@@ -22,6 +22,7 @@ import com.alibaba.druid.sql.ast.SQLSetQuantifier;
import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.statement.SQLExprTableSource;
import com.alibaba.druid.sql.ast.statement.SQLSelectQuery;
import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
import com.alibaba.druid.sql.ast.statement.SQLTableSource;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGParameter;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGFunctionTableSource;
@@ -58,6 +59,18 @@ public class PGSelectParser extends SQLSelectParser {
return queryRest(valuesQuery);
}
if (lexer.token() == Token.LPAREN) {
lexer.nextToken();
SQLSelectQuery select = query();
if (select instanceof SQLSelectQueryBlock) {
((SQLSelectQueryBlock) select).setParenthesized(true);
}
accept(Token.RPAREN);
return queryRest(select);
}
PGSelectQueryBlock queryBlock = new PGSelectQueryBlock();
if (lexer.token() == Token.SELECT) {