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Code Issues Releases Wiki Activity

support odps udtf expr

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This commit is contained in:
wenshao
2014-01-05 21:57:34 +08:00
parent a45adfc85c
commit 4ee7cd9274
8 changed files with 223 additions and 16 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLSelectParser.java
+20 -15
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@@ -270,22 +270,9 @@ public class SQLSelectParser extends SQLParser {
protected final void parseSelectList(SQLSelectQueryBlock queryBlock) {
final List<SQLSelectItem> selectList = queryBlock.getSelectList();
for (;;) {
SQLExpr expr;
if (lexer.token() == Token.IDENTIFIER) {
expr = new SQLIdentifierExpr(lexer.stringVal());
lexer.nextTokenComma();
if (lexer.token() != Token.COMMA) {
expr = this.exprParser.primaryRest(expr);
expr = this.exprParser.exprRest(expr);
}
} else {
expr = expr();
}
final String alias = as();
final SQLSelectItem selectItem = new SQLSelectItem(expr, alias);
final SQLSelectItem selectItem = parseSelectItem();
selectList.add(selectItem);
if (lexer.token() != Token.COMMA) {
break;
}
@@ -294,6 +281,24 @@ public class SQLSelectParser extends SQLParser {
}
}
protected SQLSelectItem parseSelectItem() {
SQLExpr expr;
if (lexer.token() == Token.IDENTIFIER) {
expr = new SQLIdentifierExpr(lexer.stringVal());
lexer.nextTokenComma();
if (lexer.token() != Token.COMMA) {
expr = this.exprParser.primaryRest(expr);
expr = this.exprParser.exprRest(expr);
}
} else {
expr = expr();
}
final String alias = as();
return new SQLSelectItem(expr, alias);
}
public void parseFrom(SQLSelectQueryBlock queryBlock) {
if (lexer.token() != Token.FROM) {
return;