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Code Issues Releases Wiki Activity

improved sql parser derby support, bug fixed for issue #3020

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This commit is contained in:
shaojin.wensj
2019-01-30 21:12:20 +08:00
parent 212e8f0965
commit a9fa55033c
3 changed files with 20 additions and 2 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLParser.java
+6 -2
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@@ -17,6 +17,7 @@ package com.alibaba.druid.sql.parser;
import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
import com.alibaba.druid.sql.dialect.hive.stmt.HiveCreateTableStatement;
import com.alibaba.druid.util.FnvHash;
public class SQLParser {
protected final Lexer lexer;
@@ -79,8 +80,11 @@ public class SQLParser {
}
if (token == Token.IDENTIFIER) {
String ident = lexer.stringVal;
if (ident.equalsIgnoreCase("START") || ident.equalsIgnoreCase("CONNECT")) {
long hash = lexer.hash_lower;
if (hash == FnvHash.Constants.START
|| hash == FnvHash.Constants.CONNECT
|| hash == FnvHash.Constants.OFFSET
|| hash == FnvHash.Constants.LIMIT) {
if (must) {
throw new ParserException("illegal alias. " + lexer.info());
}
src/main/java/com/alibaba/druid/util/FnvHash.java
+1
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@@ -444,6 +444,7 @@ public final class FnvHash {
long LESS = fnv1a_64_lower("LESS");
long MAXVALUE = fnv1a_64_lower("MAXVALUE");
long OFFSET = fnv1a_64_lower("OFFSET");
long LIMIT = fnv1a_64_lower("LIMIT");
long RAW = fnv1a_64_lower("RAW");
long LONG_RAW = fnv1a_64_lower("LONG RAW");
long LONG = fnv1a_64_lower("LONG");
src/test/java/com/alibaba/druid/bvt/sql/derby/DerbySelectTest.java
+13
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@@ -0,0 +1,13 @@
package com.alibaba.druid.bvt.sql.derby;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.util.JdbcConstants;
import junit.framework.TestCase;
public class DerbySelectTest extends TestCase {
public void test_for_derby() throws Exception {
String sql = "select * from sys_user offset ? rows fetch next ? rows only";
SQLUtils.parseSingleStatement(sql, JdbcConstants.DERBY);
}
}