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Code Issues Releases Wiki Activity

improved odps sql parser, support true/false/close, fixed issue #1294

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This commit is contained in:
高铁
2016-06-25 17:11:51 +08:00
parent 7808fe9118
commit ee31a42afc
6 changed files with 217 additions and 92 deletions
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src/main/java/com/alibaba/druid/sql/dialect/odps/parser/OdpsExprParser.java
+6 -3
View File
@@ -77,6 +77,7 @@ public class OdpsExprParser extends SQLExprParser {
expr = expr();
}
String alias = null;
if (lexer.token() == Token.AS) {
lexer.nextToken();
@@ -88,7 +89,7 @@ public class OdpsExprParser extends SQLExprParser {
selectItem.setExpr(expr);
for (;;) {
String alias = lexer.stringVal();
alias = lexer.stringVal();
lexer.nextToken();
selectItem.getAliasList().add(alias);
@@ -103,10 +104,12 @@ public class OdpsExprParser extends SQLExprParser {
accept(Token.RPAREN);
return selectItem;
} else {
alias = alias();
}
} else {
alias = as();
}
final String alias = as();
SQLSelectItem item = new SQLSelectItem(expr, alias);
src/main/java/com/alibaba/druid/sql/dialect/odps/parser/OdpsLexer.java
+2
View File
@@ -45,6 +45,8 @@ public class OdpsLexer extends Lexer {
map.put("LIMIT", Token.LIMIT);
map.put("IF", Token.IF);
map.put("DISTRIBUTE", Token.DISTRIBUTE);
map.put("TRUE", Token.TRUE);
map.put("FALSE", Token.FALSE);
DEFAULT_ODPS_KEYWORDS = new Keywords(map);
}
src/main/java/com/alibaba/druid/sql/parser/SQLParser.java
+94 -87
View File
@@ -66,93 +66,7 @@ public class SQLParser {
if (lexer.token() == Token.AS) {
lexer.nextToken();
if (lexer.token() == Token.LITERAL_ALIAS) {
alias = '"' + lexer.stringVal() + '"';
lexer.nextToken();
} else if (lexer.token() == Token.IDENTIFIER) {
alias = lexer.stringVal();
lexer.nextToken();
} else if (lexer.token() == Token.LITERAL_CHARS) {
alias = "'" + lexer.stringVal() + "'";
lexer.nextToken();
} else {
switch (lexer.token()) {
case KEY:
case INDEX:
case CASE:
case MODEL:
case PCTFREE:
case INITRANS:
case MAXTRANS:
case SEGMENT:
case CREATION:
case IMMEDIATE:
case DEFERRED:
case STORAGE:
case NEXT:
case MINEXTENTS:
case MAXEXTENTS:
case MAXSIZE:
case PCTINCREASE:
case FLASH_CACHE:
case CELL_FLASH_CACHE:
case KEEP:
case NONE:
case LOB:
case STORE:
case ROW:
case CHUNK:
case CACHE:
case NOCACHE:
case LOGGING:
case NOCOMPRESS:
case KEEP_DUPLICATES:
case EXCEPTIONS:
case PURGE:
case INITIALLY:
case END:
case COMMENT:
case ENABLE:
case DISABLE:
case SEQUENCE:
case USER:
case ANALYZE:
case OPTIMIZE:
case GRANT:
case REVOKE:
case FULL:
case TO:
case NEW:
case INTERVAL:
case LOCK:
case LIMIT:
case IDENTIFIED:
case PASSWORD:
case BINARY:
case WINDOW:
case OFFSET:
case SHARE:
case START:
case CONNECT:
case MATCHED:
case ERRORS:
case REJECT:
case UNLIMITED:
case BEGIN:
case EXCLUSIVE:
case MODE:
case ADVISE:
case TYPE:
alias = lexer.stringVal();
lexer.nextToken();
return alias;
case QUES:
alias = "?";
lexer.nextToken();
default:
break;
}
}
alias = alias();
if (alias != null) {
while (lexer.token() == Token.DOT) {
@@ -205,6 +119,99 @@ public class SQLParser {
return alias;
}
protected String alias() {
String alias = null;
if (lexer.token() == Token.LITERAL_ALIAS) {
alias = '"' + lexer.stringVal() + '"';
lexer.nextToken();
} else if (lexer.token() == Token.IDENTIFIER) {
alias = lexer.stringVal();
lexer.nextToken();
} else if (lexer.token() == Token.LITERAL_CHARS) {
alias = "'" + lexer.stringVal() + "'";
lexer.nextToken();
} else {
switch (lexer.token()) {
case KEY:
case INDEX:
case CASE:
case MODEL:
case PCTFREE:
case INITRANS:
case MAXTRANS:
case SEGMENT:
case CREATION:
case IMMEDIATE:
case DEFERRED:
case STORAGE:
case NEXT:
case MINEXTENTS:
case MAXEXTENTS:
case MAXSIZE:
case PCTINCREASE:
case FLASH_CACHE:
case CELL_FLASH_CACHE:
case KEEP:
case NONE:
case LOB:
case STORE:
case ROW:
case CHUNK:
case CACHE:
case NOCACHE:
case LOGGING:
case NOCOMPRESS:
case KEEP_DUPLICATES:
case EXCEPTIONS:
case PURGE:
case INITIALLY:
case END:
case COMMENT:
case ENABLE:
case DISABLE:
case SEQUENCE:
case USER:
case ANALYZE:
case OPTIMIZE:
case GRANT:
case REVOKE:
case FULL:
case TO:
case NEW:
case INTERVAL:
case LOCK:
case LIMIT:
case IDENTIFIED:
case PASSWORD:
case BINARY:
case WINDOW:
case OFFSET:
case SHARE:
case START:
case CONNECT:
case MATCHED:
case ERRORS:
case REJECT:
case UNLIMITED:
case BEGIN:
case EXCLUSIVE:
case MODE:
case ADVISE:
case TYPE:
case CLOSE:
alias = lexer.stringVal();
lexer.nextToken();
return alias;
case QUES:
alias = "?";
lexer.nextToken();
default:
break;
}
}
return alias;
}
protected void printError(Token token) {
String arround;
if (lexer.mark >= 0 && (lexer.text.length() > lexer.mark + 30)) {