Commit 2be8d57

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add create_view() method

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Original file line number	Diff line number	Diff line change
`@@ -659,6 +659,22 @@ def union_select(self, table: Union[str, dict], union_all: bool = False):`
`659`	`659`	`def __str__(self):`
`660`	`660`	`return self.get_sql(False)`
`661`	`661`
	`662`	`+ def create_view(self, view_name: str, add_exists: bool = True):`
	`663`	`+ # this method will be moved to another class`
	`664`	`+ if not view_name:`
	`665`	`+ self.set_error(f"Empty view_name in {inspect.stack()[0][3]} method")`
	`666`	`+ return self`
	`667`	`+`
	`668`	`+ exists = "IF NOT EXISTS " if add_exists else ""`
	`669`	`+`
	`670`	`+ # self.reset()`
	`671`	`+ if 'select' not in self._sql.lower():`
	`672`	`+ self.set_error(f"No select found in {inspect.stack()[0][3]} method")`
	`673`	`+ return self`
	`674`	+ self._sql = f"CREATE VIEW {exists}`{view_name}` AS " + self._sql
	`675`	`+`
	`676`	`+ return self`
	`677`	`+`
`662`	`678`	`def drop_view(self, view_name: str, add_exists: bool = True):`
`663`	`679`	`# this method will be moved to another class`
`664`	`680`	`if not view_name:`

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