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Code Issues Releases Wiki Activity

bug fixed for sql parser. issue #1898

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This commit is contained in:
wenshao
2017-08-14 21:29:39 +08:00
parent e210b1608a
commit 5a201ce33c
6 changed files with 83 additions and 19 deletions
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src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlExprParser.java
+15 -15
View File
@@ -195,12 +195,12 @@ public class MySqlExprParser extends SQLExprParser {
expr = new SQLHexExpr(charValue);
return primaryRest(expr);
} else if (ident.equalsIgnoreCase("b")) {
String charValue = lexer.stringVal();
lexer.nextToken();
expr = new SQLBinaryExpr(charValue);
return primaryRest(expr);
// } else if (ident.equalsIgnoreCase("b")) {
// String charValue = lexer.stringVal();
// lexer.nextToken();
// expr = new SQLBinaryExpr(charValue);
//
// return primaryRest(expr);
} else if (ident.startsWith("_")) {
String charValue = lexer.stringVal();
lexer.nextToken();
@@ -277,15 +277,15 @@ public class MySqlExprParser extends SQLExprParser {
return primaryRest(expr);
}
} else if (expr instanceof SQLIntegerExpr) {
SQLIntegerExpr intExpr = (SQLIntegerExpr) expr;
String binaryString = lexer.stringVal();
if (intExpr.getNumber().intValue() == 0 && binaryString.startsWith("b")) {
lexer.nextToken();
expr = new SQLBinaryExpr(binaryString.substring(1));
return primaryRest(expr);
}
// } else if (expr instanceof SQLIntegerExpr) {
// SQLIntegerExpr intExpr = (SQLIntegerExpr) expr;
// String binaryString = lexer.stringVal();
// if (intExpr.getNumber().intValue() == 0 && binaryString.startsWith("b")) {
// lexer.nextToken();
// expr = new SQLBinaryExpr(binaryString.substring(1));
//
// return primaryRest(expr);
// }
}
}
src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlLexer.java
+42 -1
View File
@@ -218,8 +218,29 @@ public class MySqlLexer extends Lexer {
public void scanIdentifier() {
final char first = ch;
if (ch == '`') {
if (ch == 'b' && charAt(pos + 1) == '\'') {
int i = 2;
int mark = pos + 2;
for (;;++i) {
char ch = charAt(pos + i);
if (ch == '0' || ch == '1') {
continue;
} else if (ch == '\'') {
bufPos += i;
pos += (i + 1);
stringVal = subString(mark, i - 2);
this.ch = charAt(pos);
token = Token.BITS;
return;
} else if (ch == EOI) {
throw new ParserException("illegal identifier. " + info());
} else {
break;
}
}
}
if (ch == '`') {
mark = pos;
bufPos = 1;
char ch;
@@ -453,6 +474,26 @@ public class MySqlLexer extends Lexer {
public void scanNumber() {
mark = pos;
if (ch == '0' && charAt(pos + 1) == 'b') {
int i = 2;
int mark = pos + 2;
for (;;++i) {
char ch = charAt(pos + i);
if (ch == '0' || ch == '1') {
continue;
} else if (ch >= '2' && ch <= '9') {
break;
} else {
bufPos += i;
pos += i;
stringVal = subString(mark, i - 2);
this.ch = charAt(pos);
token = Token.BITS;
return;
}
}
}
if (ch == '-') {
bufPos++;
ch = charAt(++pos);