Parse MILLENNIUM (#633)

* add unknown, is not true/false/unknown

* millennium

Author: sarahyurick

src/ast/value.rs

@@ -85,6 +85,7 @@ pub enum DateTimeField {
     Julian,
     Microseconds,
     Millenium,
+    Millennium,
     Milliseconds,
     Quarter,
     Timezone,
@@ -112,6 +113,7 @@ impl fmt::Display for DateTimeField {
             DateTimeField::Julian => "JULIAN",
             DateTimeField::Microseconds => "MICROSECONDS",
             DateTimeField::Millenium => "MILLENIUM",
+            DateTimeField::Millennium => "MILLENNIUM",
             DateTimeField::Milliseconds => "MILLISECONDS",
             DateTimeField::Quarter => "QUARTER",
             DateTimeField::Timezone => "TIMEZONE",

src/keywords.rs

@@ -332,6 +332,7 @@ define_keywords!(
     METHOD,
     MICROSECONDS,
     MILLENIUM,
+    MILLENNIUM,
     MILLISECONDS,
     MIN,
     MINUTE,

src/parser.rs

@@ -1065,6 +1065,7 @@ impl<'a> Parser<'a> {
                 Keyword::JULIAN => Ok(DateTimeField::Julian),
                 Keyword::MICROSECONDS => Ok(DateTimeField::Microseconds),
                 Keyword::MILLENIUM => Ok(DateTimeField::Millenium),
+                Keyword::MILLENNIUM => Ok(DateTimeField::Millennium),
                 Keyword::MILLISECONDS => Ok(DateTimeField::Milliseconds),
                 Keyword::QUARTER => Ok(DateTimeField::Quarter),
                 Keyword::TIMEZONE => Ok(DateTimeField::Timezone),
@@ -1144,6 +1145,7 @@ impl<'a> Parser<'a> {
                     Keyword::JULIAN,
                     Keyword::MICROSECONDS,
                     Keyword::MILLENIUM,
+                    Keyword::MILLENNIUM,
                     Keyword::MILLISECONDS,
                     Keyword::QUARTER,
                     Keyword::TIMEZONE,

tests/sqlparser_common.rs

@@ -1755,6 +1755,7 @@ fn parse_extract() {
     verified_stmt("SELECT EXTRACT(JULIAN FROM d)");
     verified_stmt("SELECT EXTRACT(MICROSECONDS FROM d)");
     verified_stmt("SELECT EXTRACT(MILLENIUM FROM d)");
+    verified_stmt("SELECT EXTRACT(MILLENNIUM FROM d)");
     verified_stmt("SELECT EXTRACT(MILLISECONDS FROM d)");
     verified_stmt("SELECT EXTRACT(QUARTER FROM d)");
     verified_stmt("SELECT EXTRACT(TIMEZONE FROM d)");