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Code Issues Releases Wiki Activity

improved sql parser. support create materialized view

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This commit is contained in:
wenshao
2017-06-30 11:25:11 +08:00
parent 2c52661fe9
commit 6cfba1a0b9
9 changed files with 667 additions and 2 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLStatementParser.java
+79
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@@ -32,6 +32,7 @@ import com.alibaba.druid.sql.ast.statement.*;
import com.alibaba.druid.sql.ast.statement.SQLCreateTriggerStatement.TriggerEvent;
import com.alibaba.druid.sql.ast.statement.SQLCreateTriggerStatement.TriggerType;
import com.alibaba.druid.sql.dialect.mysql.ast.clause.MySqlRepeatStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleExprParser;
import com.alibaba.druid.util.JdbcConstants;
import com.alibaba.druid.util.JdbcUtils;
@@ -1842,11 +1843,89 @@ public class SQLStatementParser extends SQLParser {
} else if (identifierEquals("BITMAP")) {
lexer.reset(markBp, markChar, Token.CREATE);
return parseCreateIndex(true);
} else if (identifierEquals("MATERIALIZED")) {
lexer.reset(markBp, markChar, Token.CREATE);
return parseCreateMaterializedView();
}
throw new ParserException("TODO " + lexer.token());
}
public SQLStatement parseCreateMaterializedView() {
accept(Token.CREATE);
acceptIdentifier("MATERIALIZED");
accept(Token.VIEW);
SQLCreateMaterializedViewStatement stmt = new SQLCreateMaterializedViewStatement();
stmt.setName(this.exprParser.name());
for (;;) {
if (exprParser instanceof OracleExprParser) {
((OracleExprParser) exprParser).parseSegmentAttributes(stmt);
}
if (identifierEquals("REFRESH")) {
lexer.nextToken();
for (; ; ) {
if (identifierEquals("FAST")) {
lexer.nextToken();
stmt.setRefreshFast(true);
} else if (identifierEquals("COMPLETE")) {
lexer.nextToken();
stmt.setRefreshComlete(true);
} else if (identifierEquals("FORCE")) {
lexer.nextToken();
stmt.setRefreshForce(true);
} else if (lexer.token() == Token.ON) {
lexer.nextToken();
if (lexer.token() == Token.COMMIT) {
lexer.nextToken();
stmt.setRefreshOnCommit(true);
} else {
acceptIdentifier("DEMAND");
stmt.setRefreshOnDemand(true);
}
} else {
break;
}
}
} else if (identifierEquals("BUILD")) {
lexer.nextToken();
if (identifierEquals("IMMEDIATE") || lexer.token() == Token.IMMEDIATE) {
lexer.nextToken();
stmt.setBuildImmediate(true);
} else {
acceptIdentifier("DEFERRED");
stmt.setBuildDeferred(true);
}
} else if (identifierEquals("PARALLEL")) {
lexer.nextToken();
stmt.setParallel(true);
if (lexer.token() == Token.LITERAL_INT) {
stmt.setParallelValue(lexer.integerValue().intValue());
lexer.nextToken();
}
} else {
break;
}
}
if (lexer.token() == Token.ENABLE) {
lexer.nextToken();
acceptIdentifier("QUERY");
acceptIdentifier("REWRITE");
stmt.setEnableQueryRewrite(true);
}
accept(Token.AS);
SQLSelect select = this.createSQLSelectParser().select();
stmt.setQuery(select);
return stmt;
}
public SQLStatement parseCreateDbLink() {
throw new ParserException("TODO " + lexer.token());
}