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Code Issues Releases Wiki Activity

improve sql parser, support sql server

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This commit is contained in:
wenshao
2013-08-02 16:16:35 +08:00
parent e9a6e6b135
commit b9fedcb6d4
45 changed files with 1397 additions and 220 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLStatementParser.java
+89 -5
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@@ -23,16 +23,22 @@ import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.ast.expr.SQLListExpr;
import com.alibaba.druid.sql.ast.expr.SQLQueryExpr;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableAddColumn;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableAddPrimaryKey;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableAlterColumn;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableDisableConstraint;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableDisableKeys;
import com.alibaba.druid.sql.ast.statement.SQLAlterTableDropColumnItem;
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;
import com.alibaba.druid.sql.ast.statement.SQLAssignItem;
import com.alibaba.druid.sql.ast.statement.SQLCallStatement;
import com.alibaba.druid.sql.ast.statement.SQLColumnDefinition;
import com.alibaba.druid.sql.ast.statement.SQLCommentStatement;
import com.alibaba.druid.sql.ast.statement.SQLCreateDatabaseStatement;
import com.alibaba.druid.sql.ast.statement.SQLCreateIndexStatement;
import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
import com.alibaba.druid.sql.ast.statement.SQLCreateViewStatement;
import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
@@ -42,10 +48,12 @@ import com.alibaba.druid.sql.ast.statement.SQLDropViewStatement;
import com.alibaba.druid.sql.ast.statement.SQLExprTableSource;
import com.alibaba.druid.sql.ast.statement.SQLInsertInto;
import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
import com.alibaba.druid.sql.ast.statement.SQLPrimaryKey;
import com.alibaba.druid.sql.ast.statement.SQLReleaseSavePointStatement;
import com.alibaba.druid.sql.ast.statement.SQLRollbackStatement;
import com.alibaba.druid.sql.ast.statement.SQLSavePointStatement;
import com.alibaba.druid.sql.ast.statement.SQLSelect;
import com.alibaba.druid.sql.ast.statement.SQLSelectOrderByItem;
import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
import com.alibaba.druid.sql.ast.statement.SQLSetStatement;
import com.alibaba.druid.sql.ast.statement.SQLTableSource;
@@ -228,7 +236,7 @@ public class SQLStatementParser extends SQLParser {
lexer.nextToken();
continue;
}
if (lexer.token() == Token.COMMENT) {
statementList.add(this.parseComment());
continue;
@@ -305,7 +313,17 @@ public class SQLStatementParser extends SQLParser {
} else if (identifierEquals("ADD")) {
lexer.nextToken();
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
if (lexer.token() == Token.PRIMARY) {
SQLPrimaryKey primaryKey = this.exprParser.parsePrimaryKey();
SQLAlterTableAddPrimaryKey item = new SQLAlterTableAddPrimaryKey();
item.setPrimaryKey(primaryKey);
stmt.getItems().add(item);
} else if (lexer.token() == Token.IDENTIFIER) {
SQLAlterTableAddColumn item = parseAlterTableAddColumn();
stmt.getItems().add(item);
} else {
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
}
} else if (identifierEquals("DISABLE")) {
lexer.nextToken();
@@ -331,6 +349,17 @@ public class SQLStatementParser extends SQLParser {
SQLAlterTableEnableKeys item = new SQLAlterTableEnableKeys();
stmt.getItems().add(item);
}
} else if (lexer.token() == Token.ALTER) {
lexer.nextToken();
if (lexer.token() == Token.COLUMN) {
lexer.nextToken();
SQLColumnDefinition column = this.exprParser.parseColumn();
SQLAlterTableAlterColumn alterColumn = new SQLAlterTableAlterColumn();
alterColumn.setColumn(column);
stmt.getItems().add(alterColumn);
} else {
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
}
} else {
break;
}
@@ -349,6 +378,11 @@ public class SQLStatementParser extends SQLParser {
SQLAlterTableDropConstraint item = new SQLAlterTableDropConstraint();
item.setConstraintName(this.exprParser.name());
stmt.getItems().add(item);
} else if (lexer.token() == Token.COLUMN) {
lexer.nextToken();
SQLAlterTableDropColumnItem item = new SQLAlterTableDropColumnItem();
this.exprParser.names(item.getColumns());
stmt.getItems().add(item);
} else {
throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
}
@@ -489,8 +523,11 @@ public class SQLStatementParser extends SQLParser {
accept(Token.INDEX);
SQLDropIndexStatement stmt = new SQLDropIndexStatement();
stmt.setIndexName(this.exprParser.name());
accept(Token.ON);
stmt.setTableName(this.exprParser.name());
if (lexer.token() == Token.ON) {
lexer.nextToken();
stmt.setTableName(this.exprParser.name());
}
return stmt;
}
@@ -612,7 +649,39 @@ public class SQLStatementParser extends SQLParser {
}
public SQLStatement parseCreateIndex(boolean acceptCreate) {
throw new ParserException("TODO " + lexer.token());
if (acceptCreate) {
accept(Token.CREATE);
}
SQLCreateIndexStatement stmt = new SQLCreateIndexStatement();
if (lexer.token() == Token.UNIQUE) {
stmt.setType("UNIQUE");
lexer.nextToken();
}
accept(Token.INDEX);
stmt.setName(this.exprParser.name());
accept(Token.ON);
stmt.setTable(this.exprParser.name());
accept(Token.LPAREN);
for (;;) {
SQLSelectOrderByItem item = this.exprParser.parseSelectOrderByItem();
item.setParent(stmt);
stmt.getItems().add(item);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
accept(Token.RPAREN);
return stmt;
}
public SQLCreateTableParser getSQLCreateTableParser() {
@@ -763,4 +832,19 @@ public class SQLStatementParser extends SQLParser {
return stmt;
}
protected SQLAlterTableAddColumn parseAlterTableAddColumn() {
SQLAlterTableAddColumn item = new SQLAlterTableAddColumn();
for (;;) {
SQLColumnDefinition columnDef = this.exprParser.parseColumn();
item.getColumns().add(columnDef);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
return item;
}
}