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Code Issues Releases Wiki Activity

improved sql parser.

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This commit is contained in:
wenshao
2017-08-13 21:05:08 +08:00
parent e693b08304
commit e1a6d99c1c
13 changed files with 566 additions and 123 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLSelectParser.java
+21 -13
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@@ -19,19 +19,7 @@ import java.util.List;
import com.alibaba.druid.sql.ast.*;
import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.statement.SQLExprTableSource;
import com.alibaba.druid.sql.ast.statement.SQLJoinTableSource;
import com.alibaba.druid.sql.ast.statement.SQLSelect;
import com.alibaba.druid.sql.ast.statement.SQLSelectGroupByClause;
import com.alibaba.druid.sql.ast.statement.SQLSelectItem;
import com.alibaba.druid.sql.ast.statement.SQLSelectQuery;
import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
import com.alibaba.druid.sql.ast.statement.SQLSubqueryTableSource;
import com.alibaba.druid.sql.ast.statement.SQLTableSource;
import com.alibaba.druid.sql.ast.statement.SQLUnionOperator;
import com.alibaba.druid.sql.ast.statement.SQLUnionQuery;
import com.alibaba.druid.sql.ast.statement.SQLUnionQueryTableSource;
import com.alibaba.druid.sql.ast.statement.SQLWithSubqueryClause;
import com.alibaba.druid.sql.ast.statement.*;
import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlOrderingExpr;
import com.alibaba.druid.util.JdbcConstants;
@@ -579,6 +567,26 @@ public class SQLSelectParser extends SQLParser {
primaryTableSourceRest(rightTableSource);
}
if (lexer.token() == Token.WITH) {
lexer.nextToken();
accept(Token.LPAREN);
for (;;) {
SQLExpr hintExpr = this.expr();
SQLExprHint hint = new SQLExprHint(hintExpr);
hint.setParent(tableSource);
rightTableSource.getHints().add(hint);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
} else {
break;
}
}
accept(Token.RPAREN);
}
join.setRight(rightTableSource);
if (!natural) {