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Code Issues Releases Wiki Activity

sql parser support alter table drop constraint

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This commit is contained in:
wenshao
2013-05-26 21:52:28 +08:00
parent 799e31a18d
commit 12221ee91d
13 changed files with 282 additions and 18 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLStatementParser.java
+28 -11
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@@ -25,6 +25,7 @@ import com.alibaba.druid.sql.ast.expr.SQLListExpr;
import com.alibaba.druid.sql.ast.expr.SQLQueryExpr;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableDisableConstraint;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableDisableKeys;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableDropConstraint;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableEnableConstraint;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableEnableKeys;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableStatement;
@@ -228,7 +229,8 @@ public class SQLStatementParser extends SQLParser {
continue;
}
throw new ParserException("syntax error, " + lexer.token() + " " + lexer.stringVal() + ", pos " + lexer.pos());
throw new ParserException("syntax error, " + lexer.token() + " " + lexer.stringVal() + ", pos "
+ lexer.pos());
}
}
@@ -285,17 +287,19 @@ public class SQLStatementParser extends SQLParser {
public SQLStatement parseAlter() {
accept(Token.ALTER);
if (lexer.token() == Token.TABLE) {
lexer.nextToken();
SQLAlterTableStatement stmt = new SQLAlterTableStatement();
stmt.setName(this.exprParser.name());
for (;;) {
if (identifierEquals("ADD")) {
if (lexer.token() == Token.DROP) {
parseAlterDrop(stmt);
} else if (identifierEquals("ADD")) {
lexer.nextToken();
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
} else if (identifierEquals("DISABLE")) {
lexer.nextToken();
@@ -326,12 +330,25 @@ public class SQLStatementParser extends SQLParser {
break;
}
}
return stmt;
}
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
}
public void parseAlterDrop(SQLAlterTableStatement stmt) {
lexer.nextToken();
if (lexer.token() == Token.CONSTRAINT) {
lexer.nextToken();
SQLAlterTableDropConstraint item = new SQLAlterTableDropConstraint();
item.setConstraintName(this.exprParser.name());
stmt.getItems().add(item);
} else {
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
}
}
public SQLStatement parseRename() {
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
}
@@ -552,7 +569,7 @@ public class SQLStatementParser extends SQLParser {
lexer.reset(markBp, markChar, Token.CREATE);
return parseCreateDbLink();
}
lexer.reset(markBp, markChar, Token.CREATE);
return parseCreateDatabase();
} else if (identifierEquals("PUBLIC") || identifierEquals("SHARE")) {
@@ -626,7 +643,7 @@ public class SQLStatementParser extends SQLParser {
return udpateStatement;
}
protected void parseUpdateSet(SQLUpdateStatement update) {
accept(Token.SET);
@@ -666,7 +683,7 @@ public class SQLStatementParser extends SQLParser {
if (lexer.token() == (Token.FROM)) {
lexer.nextToken();
}
if (lexer.token() == Token.COMMENT) {
lexer.nextToken();
}
@@ -697,7 +714,7 @@ public class SQLStatementParser extends SQLParser {
if (lexer.token() == Token.CREATE) {
lexer.nextToken();
}
if (lexer.token() == Token.OR) {
lexer.nextToken();
accept(Token.REPLACE);