Postgres: Parse trailing asterisk after table name in FROM clause

[BenSatori]

Before this PR, PostgreSQL's FROM tbl_name* syntax (asterisk explicitly indicating that descendant tables should be included) failed to parse:

SELECT * FROM tbl_name*

This was already supported for TRUNCATE TABLE name* and LOCK TABLE name*, but not for regular FROM items.

Docs: https://www.postgresql.org/docs/current/sql-select.html#SQL-FROM

Fix

• Added a has_trailing_asterisk field to TableFactor::Table, parsed the same way as the existing asterisk handling in TRUNCATE/LOCK TABLE.
• Renamed the pre-existing has_asterisk fields on TruncateTableTarget and LockTableTarget to has_trailing_asterisk for naming consistency.

This PR was created with AI assistance.

[LucaCappelletti94]

You should render the * before json_path, matching the parse order. On Snowflake and Redshift (supports_partiql), SELECT * FROM t*[0] renders as SELECT * FROM t[0]*, which fails to parse back with Expected: end of statement, found: *.

Suggested change

	if let Some(json_path) = json_path {
	json_path.fmt(f)?;
	}
	if *has_trailing_asterisk {
	write!(f, "*")?;
	}
	if *has_trailing_asterisk {
	write!(f, "*")?;
	}
	if let Some(json_path) = json_path {
	json_path.fmt(f)?;
	}

[LucaCappelletti94]

You could drop this comment. Snowflake's FROM grammar has no tab* form, and the has_trailing_asterisk field doc already links the Postgres reference.

Suggested change

	// Postgres/Snowflake: `FROM tab*` explicitly includes descendant tables.
	// https://www.postgresql.org/docs/current/sql-select.html#SQL-FROM
	let has_trailing_asterisk = self.consume_token(&Token::Mul);
	let has_trailing_asterisk = self.consume_token(&Token::Mul);