check if null in PreparedStatement

[vagetablechicken]

OpenMLDB/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/PreparedStatement.java

Lines 274 to 277 in 9389d90

	this.currentRow = SQLRequestRow.CreateSQLRequestRowFromColumnTypes(columnTypes);
	// TODO(hw): check if null
	this.currentSchema = this.currentRow.GetSchema();
	this.orgTypes = this.types;

currentRow may be null, check it before call GetSchema. If it's null, throw an exception.

And then, Line 279 this.currentRow == null below is useless. Delete it.

OpenMLDB/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/PreparedStatement.java

Lines 279 to 281 in 9389d90

	if (this.currentRow == null) {
	throw new SQLException("fail to build data with null row");
	}

[vighnesh-kadam]

Can you please assign this to me ? I need to just put the "if codeblock" from line 279 to line 275 right?

[lumianph]

@vighnesh-kadam i have assigned to you. You can use if to check the null according to the description above