Const
PostgreSQL lexical rules: "…" identifiers, '…' / N'…' strings with doubled quotes, E'…' strings with backslash escapes, $$…$$ / $tag$…$tag$ dollar quoting, -- line comments and nested block comments, $1 parameters, unquoted names folded to lower case.
"…"
'…'
N'…'
E'…'
$$…$$
$tag$…$tag$
--
$1
All from https://www.postgresql.org/docs/current/sql-syntax-lexical.html (4.1.1 identifiers and case folding, 4.1.2.2 escape strings, 4.1.2.4 dollar quoting, 4.1.4 positional parameters, 4.1.5 comments).
PostgreSQL lexical rules:
"…"identifiers,'…'/N'…'strings with doubled quotes,E'…'strings with backslash escapes,$$…$$/$tag$…$tag$dollar quoting,--line comments and nested block comments,$1parameters, unquoted names folded to lower case.All from https://www.postgresql.org/docs/current/sql-syntax-lexical.html (4.1.1 identifiers and case folding, 4.1.2.2 escape strings, 4.1.2.4 dollar quoting, 4.1.4 positional parameters, 4.1.5 comments).