Add 'ordinality' and 'unnest', several array keywords, and lateral (#8)

* Add 'ordinality' and 'unnest' keywords

These are for the Unnest feature, still under review

* adding lateral

for lateral join

* array related words

* Move compression/encoding constants from keywords to constants

Relocate brotli, delta_binary_packed, delta_length_byte_array, gzip,
lz4_raw, plain, rle_dictionary, snappy, uncompressed, and zstd from
keywords.ts to constants.ts where they belong.

Author: javier

src/grammar/constants.ts

@@ -8,6 +8,8 @@ export const constants: string[] = [
   "days",
   "decade",
   "default_transaction_read_only",
+  "delta_binary_packed",
+  "delta_length_byte_array",
   "desc",
   "dow",
   "doy",
@@ -46,10 +48,12 @@ export const constants: string[] = [
   "null",
   "parquet",
   "pgwire",
+  "plain",
   "prepare",
   "prev",
   "quarter",
   "rest",
+  "rle_dictionary",
   "search_path",
   "second",
   "seconds",

src/grammar/keywords.ts

@@ -18,6 +18,7 @@ export const keywords: string[] = [
   "base",
   "batch",
   "between",
+  "bloom_filter",
   "by",
   "bypass",
   "cache",
@@ -97,6 +98,7 @@ export const keywords: string[] = [
   "key",
   "keys",
   "latest",
+  "lateral",
   "left",
   "length",
   "level",
@@ -120,6 +122,7 @@ export const keywords: string[] = [
   "option",
   "or",
   "order",
+  "ordinality",
   "others",
   "outer",
   "over",
@@ -141,6 +144,7 @@ export const keywords: string[] = [
   "public",
   "query",
   "range",
+  "raw_array_encoding",
   "references",
   "refresh",
   "release",
@@ -186,6 +190,7 @@ export const keywords: string[] = [
   "unbounded",
   "union",
   "unlock",
+  "unnest",
   "unpivot",
   "update",
   "upsert",
@@ -204,5 +209,4 @@ export const keywords: string[] = [
   "within",
   "writer",
   "zone",
-  "raw_array_encoding",
 ]