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Code Issues Releases Wiki Activity

improve sql parser

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This commit is contained in:
wenshao
2012-11-10 16:34:24 +08:00
parent 8142739841
commit ccb314e3b8
7 changed files with 220 additions and 164 deletions
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src/main/java/com/alibaba/druid/sql/dialect/hive/parser/HiveLexer.java
+5 -5
View File
@@ -76,7 +76,7 @@ public class HiveLexer extends Lexer {
}
for (;;) {
if (ch == '*' && buf[bp + 1] == '/') {
if (ch == '*' && charAt(bp + 1) == '/') {
sp += 2;
scanChar();
scanChar();
@@ -88,10 +88,10 @@ public class HiveLexer extends Lexer {
}
if (isHint) {
stringVal = new String(buf, np + startHintSp, (sp - startHintSp) - 2).trim();
stringVal = subString(np + startHintSp, (sp - startHintSp) - 2).trim();
token = Token.HINT;
} else {
stringVal = new String(buf, np, sp);
stringVal = subString(np, sp);
token = Token.MULTI_LINE_COMMENT;
}
@@ -112,7 +112,7 @@ public class HiveLexer extends Lexer {
for (;;) {
if (ch == '\r') {
if (buf[bp + 1] == '\n') {
if (charAt(bp + 1) == '\n') {
sp += 2;
scanChar();
break;
@@ -131,7 +131,7 @@ public class HiveLexer extends Lexer {
sp++;
}
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
token = Token.LINE_COMMENT;
return;
}
src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlLexer.java
+38 -45
View File
@@ -67,86 +67,76 @@ public class MySqlLexer extends Lexer {
throw new SQLParseException("illegal variable");
}
int hash = first;
np = bp;
sp = 1;
if (buf[bp + 1] == '@') {
ch = buf[++bp];
hash = 31 * hash + ch;
if (charAt(bp + 1) == '@') {
ch = charAt(++bp);
sp++;
}
if (buf[bp + 1] == '`') {
if (charAt(bp + 1) == '`') {
++bp;
++sp;
char ch;
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '`') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
break;
} else if (ch == EOI) {
throw new SQLParseException("illegal identifier");
}
hash = 31 * hash + ch;
sp++;
continue;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = subString(np, sp);
token = Token.VARIANT;
} else if (buf[bp + 1] == '{') {
} else if (charAt(bp + 1) == '{') {
++bp;
++sp;
char ch;
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '}') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
break;
} else if (ch == EOI) {
throw new SQLParseException("illegal identifier");
}
hash = 31 * hash + ch;
sp++;
continue;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = subString(np, sp);
token = Token.VARIANT;
} else {
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (!isIdentifierChar(ch)) {
break;
}
hash = 31 * hash + ch;
sp++;
continue;
}
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = subString(np, sp);
token = Token.VARIANT;
}
@@ -154,31 +144,28 @@ public class MySqlLexer extends Lexer {
final char first = ch;
if (ch == '`') {
int hash = first;
np = bp;
sp = 1;
char ch;
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '`') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
break;
} else if (ch == EOI) {
throw new SQLParseException("illegal identifier");
}
hash = 31 * hash + ch;
sp++;
continue;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = subString(np, sp);
Token tok = keywods.getKeyword(stringVal);
if (tok != null) {
token = tok;
@@ -198,7 +185,7 @@ public class MySqlLexer extends Lexer {
sp = 1;
char ch;
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (!isIdentifierChar(ch)) {
break;
@@ -210,9 +197,9 @@ public class MySqlLexer extends Lexer {
continue;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = addSymbol(hash);
Token tok = keywods.getKeyword(stringVal);
if (tok != null) {
token = tok;
@@ -227,17 +214,20 @@ public class MySqlLexer extends Lexer {
boolean hasSpecial = false;
for (;;) {
if (bp >= buflen) {
if (isEOF()) {
lexError(tokenPos, "unclosed.str.lit");
return;
}
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '\\') {
scanChar();
if (!hasSpecial) {
System.arraycopy(buf, np + 1, sbuf, 0, sp);
if (sbuf == null) {
sbuf = new char[32];
}
arraycopy(np + 1, sbuf, 0, sp);
hasSpecial = true;
}
@@ -282,7 +272,10 @@ public class MySqlLexer extends Lexer {
token = LITERAL_CHARS;
break;
} else {
System.arraycopy(buf, np + 1, sbuf, 0, sp);
if (sbuf == null) {
sbuf = new char[32];
}
arraycopy(np + 1, sbuf, 0, sp);
hasSpecial = true;
putChar('\'');
continue;
@@ -302,7 +295,7 @@ public class MySqlLexer extends Lexer {
}
if (!hasSpecial) {
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
} else {
stringVal = new String(sbuf, 0, sp);
}
@@ -336,7 +329,7 @@ public class MySqlLexer extends Lexer {
}
for (;;) {
if (ch == '*' && buf[bp + 1] == '/') {
if (ch == '*' && charAt(bp + 1) == '/') {
sp += 2;
scanChar();
scanChar();
@@ -348,10 +341,10 @@ public class MySqlLexer extends Lexer {
}
if (isHint) {
stringVal = new String(buf, np + startHintSp, (sp - startHintSp) - 1);
stringVal = subString(np + startHintSp, (sp - startHintSp) - 1);
token = Token.HINT;
} else {
stringVal = new String(buf, np, sp);
stringVal = subString(np, sp);
token = Token.MULTI_LINE_COMMENT;
}
@@ -372,7 +365,7 @@ public class MySqlLexer extends Lexer {
for (;;) {
if (ch == '\r') {
if (buf[bp + 1] == '\n') {
if (charAt(bp + 1) == '\n') {
sp += 2;
scanChar();
break;
@@ -393,7 +386,7 @@ public class MySqlLexer extends Lexer {
sp++;
}
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
token = Token.LINE_COMMENT;
return;
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java
+18 -18
View File
@@ -114,12 +114,12 @@ public class OracleLexer extends Lexer {
boolean quoteFlag = false;
boolean mybatisFlag = false;
if (buf[bp + 1] == '"') {
if (charAt(bp + 1) == '"') {
hash = 31 * hash + '"';
bp++;
sp++;
quoteFlag = true;
} else if (buf[bp + 1] == '{') {
} else if (charAt(bp + 1) == '{') {
hash = 31 * hash + '"';
bp++;
sp++;
@@ -127,7 +127,7 @@ public class OracleLexer extends Lexer {
}
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (!isIdentifierChar(ch)) {
break;
@@ -155,9 +155,9 @@ public class OracleLexer extends Lexer {
sp++;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = addSymbol(hash);
Token tok = keywods.getKeyword(stringVal);
if (tok != null) {
token = tok;
@@ -194,7 +194,7 @@ public class OracleLexer extends Lexer {
}
for (;;) {
if (ch == '*' && buf[bp + 1] == '/') {
if (ch == '*' && charAt(bp + 1) == '/') {
sp += 2;
scanChar();
scanChar();
@@ -206,10 +206,10 @@ public class OracleLexer extends Lexer {
}
if (isHint) {
stringVal = new String(buf, np + startHintSp, (sp - startHintSp) - 1);
stringVal = subString(np + startHintSp, (sp - startHintSp) - 1);
token = Token.HINT;
} else {
stringVal = new String(buf, np, sp);
stringVal = subString(np, sp);
token = Token.MULTI_LINE_COMMENT;
}
@@ -230,7 +230,7 @@ public class OracleLexer extends Lexer {
for (;;) {
if (ch == '\r') {
if (buf[bp + 1] == '\n') {
if (charAt(bp + 1) == '\n') {
sp += 2;
scanChar();
break;
@@ -251,7 +251,7 @@ public class OracleLexer extends Lexer {
sp++;
}
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
token = Token.LINE_COMMENT;
return;
}
@@ -262,7 +262,7 @@ public class OracleLexer extends Lexer {
if (ch == '-') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
}
for (;;) {
@@ -271,18 +271,18 @@ public class OracleLexer extends Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
boolean isDouble = false;
if (ch == '.') {
if (buf[bp + 1] == '.') {
if (charAt(bp + 1) == '.') {
token = Token.LITERAL_INT;
return;
}
sp++;
ch = buf[++bp];
ch = charAt(++bp);
isDouble = true;
for (;;) {
@@ -291,17 +291,17 @@ public class OracleLexer extends Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
}
if (ch == 'e' || ch == 'E') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '+' || ch == '-') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
}
for (;;) {
@@ -310,7 +310,7 @@ public class OracleLexer extends Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
isDouble = true;
src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGLexer.java
+8 -5
View File
@@ -74,17 +74,20 @@ public class PGLexer extends Lexer {
boolean hasSpecial = false;
for (;;) {
if (bp >= buflen) {
if (isEOF()) {
lexError(tokenPos, "unclosed.str.lit");
return;
}
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '\\') {
scanChar();
if (!hasSpecial) {
System.arraycopy(buf, np + 1, sbuf, 0, sp);
if (sbuf == null) {
sbuf = new char[32];
}
arraycopy(np + 1, sbuf, 0, sp);
hasSpecial = true;
}
@@ -129,7 +132,7 @@ public class PGLexer extends Lexer {
token = LITERAL_CHARS;
break;
} else {
System.arraycopy(buf, np + 1, sbuf, 0, sp);
arraycopy(np + 1, sbuf, 0, sp);
hasSpecial = true;
putChar('\'');
continue;
@@ -149,7 +152,7 @@ public class PGLexer extends Lexer {
}
if (!hasSpecial) {
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
} else {
stringVal = new String(sbuf, 0, sp);
}
src/main/java/com/alibaba/druid/sql/parser/Lexer.java
+99 -91
View File
@@ -40,54 +40,71 @@ import java.math.BigInteger;
*/
public class Lexer {
protected final char[] buf;
protected int bp;
protected int buflen;
private final String text;
protected int bp;
// QS_TODO what is the purpose?
protected int eofPos;
protected int eofPos;
/** The current character. */
protected char ch;
protected char ch;
/** The token's position, 0-based offset from beginning of text. */
protected int tokenPos;
protected int tokenPos;
/** A character buffer for literals. */
protected final static ThreadLocal<char[]> sbufRef = new ThreadLocal<char[]>();
protected char[] sbuf;
protected char[] sbuf;
/** string point as size */
protected int sp;
protected int sp;
/** string point as offset */
protected int np;
protected int np;
protected SymbolTable symbolTable = new SymbolTable();
protected SymbolTable symbolTable = new SymbolTable();
/**
* The token, set by nextToken().
*/
protected Token token;
protected Token token;
protected Keywords keywods = Keywords.DEFAULT_KEYWORDS;
protected Keywords keywods = Keywords.DEFAULT_KEYWORDS;
protected String stringVal;
protected String stringVal;
protected boolean skipComment = true;
protected boolean skipComment = true;
private SavePoint savePoint = null;
private SavePoint savePoint = null;
/*
* anti sql injection
*/
private boolean allowComment = true;
private boolean allowComment = true;
private int varIndex = -1;
private int varIndex = -1;
public Lexer(String input){
this(input, true);
}
public final char charAt(int index) {
if (index >= text.length()) {
return EOI;
}
return text.charAt(index);
}
public String addSymbol(int hash) {
return subString(np, sp);
}
public final String subString(int offset, int count) {
return text.substring(offset, offset + count);
}
public void arraycopy(int srcPos, char[] dest, int destPos, int length) {
text.getChars(srcPos, srcPos + length, dest, destPos);
}
public boolean isAllowComment() {
return allowComment;
}
@@ -95,7 +112,7 @@ public class Lexer {
public void setAllowComment(boolean allowComment) {
this.allowComment = allowComment;
}
public int nextVarIndex() {
return ++varIndex;
}
@@ -132,43 +149,28 @@ public class Lexer {
}
public Lexer(String input, boolean skipComment){
this(input.toCharArray(), input.length(), skipComment);
}
public Lexer(char[] input, int inputLength, boolean skipComment){
this.skipComment = skipComment;
this.sbuf = sbufRef.get(); // new char[1024];
if (this.sbuf == null) {
this.sbuf = new char[1024];
sbufRef.set(sbuf);
}
this.eofPos = inputLength;
// QS_TODO ?
if (inputLength == input.length) {
if (input.length > 0 && isWhitespace(input[input.length - 1])) {
inputLength--;
} else {
char[] newInput = new char[inputLength + 1];
System.arraycopy(input, 0, newInput, 0, input.length);
input = newInput;
}
}
this.buf = input;
this.buflen = inputLength;
this.buf[this.buflen] = EOI;
this.text = input;
this.bp = -1;
scanChar();
}
public Lexer(char[] input, int inputLength, boolean skipComment){
this(new String(input, 0, inputLength), skipComment);
}
protected final void scanChar() {
ch = buf[++bp];
ch = charAt(++bp);
}
protected void unscan() {
ch = buf[--bp];
ch = charAt(--bp);
}
public boolean isEOF() {
return bp >= text.length();
}
/**
@@ -178,7 +180,6 @@ public class Lexer {
token = ERROR;
}
/**
* Return the current token, set by nextToken().
*/
@@ -200,15 +201,15 @@ public class Lexer {
scanChar();
continue;
}
if (ch == '$' && buf[bp + 1] == '{') {
if (ch == '$' && charAt(bp + 1) == '{') {
scanVariable();
return;
}
if (isFirstIdentifierChar(ch)) {
if (ch == 'N') {
if (buf[bp + 1] == '\'') {
if (charAt(bp + 1) == '\'') {
++bp;
ch = '\'';
scanString();
@@ -223,7 +224,7 @@ public class Lexer {
switch (ch) {
case '0':
if (buf[bp + 1] == 'x') {
if (charAt(bp + 1) == 'x') {
scanChar();
scanChar();
scanHexaDecimal();
@@ -330,7 +331,7 @@ public class Lexer {
scanVariable();
return;
case '-':
int subNextChar = buf[bp + 1];
int subNextChar = charAt(bp + 1);
if (subNextChar == '-') {
scanComment();
if ((token() == Token.LINE_COMMENT || token() == Token.MULTI_LINE_COMMENT) && skipComment) {
@@ -342,7 +343,7 @@ public class Lexer {
}
return;
case '/':
int nextChar = buf[bp + 1];
int nextChar = charAt(bp + 1);
if (nextChar == '/' || nextChar == '*') {
scanComment();
if ((token() == Token.LINE_COMMENT || token() == Token.MULTI_LINE_COMMENT) && skipComment) {
@@ -366,7 +367,7 @@ public class Lexer {
}
// QS_TODO ?
if (bp == buflen || ch == EOI && bp + 1 == buflen) { // JLS
if (isEOF()) { // JLS
token = EOF;
tokenPos = bp = eofPos;
} else {
@@ -498,12 +499,12 @@ public class Lexer {
boolean hasSpecial = false;
for (;;) {
if (bp >= buflen) {
if (isEOF()) {
lexError(tokenPos, "unclosed.str.lit");
return;
}
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '\'') {
scanChar();
@@ -512,7 +513,10 @@ public class Lexer {
break;
} else {
if (!hasSpecial) {
System.arraycopy(buf, np + 1, sbuf, 0, sp);
if (sbuf == null) {
sbuf = new char[32];
}
arraycopy(np + 1, sbuf, 0, sp);
hasSpecial = true;
}
putChar('\'');
@@ -533,7 +537,7 @@ public class Lexer {
}
if (!hasSpecial) {
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
} else {
stringVal = new String(sbuf, 0, sp);
}
@@ -542,13 +546,17 @@ public class Lexer {
private final void scanAlias() {
np = bp;
if (sbuf == null) {
sbuf = new char[32];
}
for (;;) {
if (bp >= buflen) {
if (isEOF()) {
lexError(tokenPos, "unclosed.str.lit");
return;
}
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '\"') {
scanChar();
@@ -563,7 +571,7 @@ public class Lexer {
}
}
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
}
public void scanVariable() {
@@ -580,12 +588,12 @@ public class Lexer {
char ch;
boolean mybatisFlag = false;
if (buf[bp + 1] == '@') {
ch = buf[++bp];
if (charAt(bp + 1) == '@') {
ch = charAt(++bp);
hash = 31 * hash + ch;
sp++;
} else if (buf[bp + 1] == '{') {
} else if (charAt(bp + 1) == '{') {
hash = 31 * hash + '"';
bp++;
sp++;
@@ -593,7 +601,7 @@ public class Lexer {
}
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (!isIdentifierChar(ch)) {
break;
@@ -604,7 +612,7 @@ public class Lexer {
sp++;
continue;
}
if (mybatisFlag) {
if (ch != '}') {
throw new SQLParseException("syntax error");
@@ -614,9 +622,9 @@ public class Lexer {
sp++;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = addSymbol(hash);
token = Token.VARIANT;
}
@@ -638,7 +646,7 @@ public class Lexer {
sp++;
for (;;) {
if (ch == '*' && buf[bp + 1] == '/') {
if (ch == '*' && charAt(bp + 1) == '/') {
sp += 2;
scanChar();
scanChar();
@@ -649,7 +657,7 @@ public class Lexer {
sp++;
}
stringVal = new String(buf, np, sp);
stringVal = subString(np, sp);
token = Token.MULTI_LINE_COMMENT;
return;
}
@@ -660,7 +668,7 @@ public class Lexer {
for (;;) {
if (ch == '\r') {
if (buf[bp + 1] == '\n') {
if (charAt(bp + 1) == '\n') {
sp += 2;
scanChar();
break;
@@ -679,7 +687,7 @@ public class Lexer {
sp++;
}
stringVal = new String(buf, np + 1, sp);
stringVal = subString(np + 1, sp);
token = Token.LINE_COMMENT;
return;
}
@@ -699,7 +707,7 @@ public class Lexer {
sp = 1;
char ch;
for (;;) {
ch = buf[++bp];
ch = charAt(++bp);
if (!isIdentifierChar(ch)) {
break;
@@ -711,9 +719,9 @@ public class Lexer {
continue;
}
this.ch = buf[bp];
this.ch = charAt(bp);
stringVal = symbolTable.addSymbol(buf, np, sp, hash);
stringVal = addSymbol(hash);
Token tok = keywods.getKeyword(stringVal);
if (tok != null) {
token = tok;
@@ -727,7 +735,7 @@ public class Lexer {
if (ch == '-') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
}
for (;;) {
@@ -736,18 +744,18 @@ public class Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
boolean isDouble = false;
if (ch == '.') {
if (buf[bp + 1] == '.') {
if (charAt(bp + 1) == '.') {
token = Token.LITERAL_INT;
return;
}
sp++;
ch = buf[++bp];
ch = charAt(++bp);
isDouble = true;
for (;;) {
@@ -756,17 +764,17 @@ public class Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
}
if (ch == 'e' || ch == 'E') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
if (ch == '+' || ch == '-') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
}
for (;;) {
@@ -775,7 +783,7 @@ public class Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
isDouble = true;
@@ -793,7 +801,7 @@ public class Lexer {
if (ch == '-') {
sp++;
ch = buf[++bp];
ch = charAt(++bp);
}
for (;;) {
@@ -802,14 +810,14 @@ public class Lexer {
} else {
break;
}
ch = buf[++bp];
ch = charAt(++bp);
}
token = Token.LITERAL_HEX;
}
public String hexString() {
return new String(buf, np, sp);
return subString(np, sp);
}
public final boolean isDigit(char ch) {
@@ -884,7 +892,7 @@ public class Lexer {
long multmin;
int digit;
if (buf[np] == '-') {
if (charAt(np) == '-') {
negative = true;
limit = Long.MIN_VALUE;
i++;
@@ -893,12 +901,12 @@ public class Lexer {
}
multmin = negative ? MULTMIN_RADIX_TEN : N_MULTMAX_RADIX_TEN;
if (i < max) {
digit = digits[buf[i++]];
digit = digits[charAt(i++)];
result = -digit;
}
while (i < max) {
// Accumulating negatively avoids surprises near MAX_VALUE
digit = digits[buf[i++]];
digit = digits[charAt(i++)];
if (result < multmin) {
return new BigInteger(numberString());
}
@@ -942,10 +950,10 @@ public class Lexer {
}
public final String numberString() {
return new String(buf, np, sp);
return subString(np, sp);
}
public BigDecimal decimalValue() {
return new BigDecimal(buf, np, sp);
return new BigDecimal(text.toCharArray(), np, sp);
}
}
src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerSelectTest5.java
+42
View File
@@ -0,0 +1,42 @@
/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.druid.bvt.sql.sqlserver;
import junit.framework.Assert;
import junit.framework.TestCase;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
import com.alibaba.druid.sql.test.TestUtils;
public class SQLServerSelectTest5 extends TestCase {
public void test_isEmpty() throws Exception {
String sql = "SELECT name, password_hash FROM [master].[sys].sql_logins";
String expect = "SELECT name, password_hash\n" + //
"FROM master.sys.sql_logins";
SQLServerStatementParser parser = new SQLServerStatementParser(sql);
SQLStatement stmt = parser.parseStatementList().get(0);
String text = TestUtils.outputSqlServer(stmt);
Assert.assertEquals(expect, text);
System.out.println(text);
}
}
src/test/resources/benchmark/sql/result-0.txt
+10
View File
@@ -0,0 +1,10 @@
MySql 6794
MySql 5561
MySql 5574
MySql 5545
MySql 5526
MySql 5531
MySql 5538
MySql 5539
MySql 5526
MySql 5529