Add support for PostgreSQL Insert table aliases (#1069)

[boydjohnson]

This is a fix for #1069

[coveralls]

Pull Request Test Coverage Report for Build 7513619314

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.05%) to 87.858%

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Totals
Change from base Build 7396929961:	0.05%
Covered Lines:	18828
Relevant Lines:	21430

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💛 - Coveralls

[alamb]

Thank you for this contribution @boydjohnson - this is looking close.

[alamb]

It seems like we should format the alias using whatever quote style was originally used

Maybe something like

Suggested change

	let table_name = if let Some(Ident {
	value,
	quote_style: _,
	}) = table_alias
	{
	format!("{table_name} AS {value}")
	let table_name = if let Some(table_alias) = table_alias
	{
	format!("{table_name} AS {table_alias}")

[boydjohnson]

Thanks, I followed your advice. I rebased and force-pushed. I hope that is ok.

[alamb]

Could you please:

1. Make the sql2 a second test (e.g. test_simple_postgres_insert_with_alias)
2. Add a test for a quoted identifier, something like INSERT INTO test_tables AS "Test_Table" (id, a) VALUES (DEFAULT, 123), perhaps

[alamb]

Thank you @boydjohnson