Handling T64, DoubleDelta, Gorilla codec (#83)

Author: sharadgaur

parser/parser_column.go

@@ -801,10 +801,12 @@ func (p *Parser) tryParseCompressionCodecs(pos Pos) (*CompressionCodec, error) {
 	if err != nil {
 		return nil, err
 	}
-	// parse DELTA if  CODEC(Delta, ZSTD(1)) or CODEC(Delta(9), ZSTD(1))
+	// parse DELTA if  CODEC(Delta, ZSTD(1))
+	// or CODEC(Delta(9), ZSTD(1)) or CODEC(T64, ZSTD(1))
 	var codecType *Ident
 	var typeLevel *NumberLiteral
-	if strings.ToUpper(name.Name) == "DELTA" {
+	switch strings.ToUpper(name.Name) {
+	case "DELTA", "DOUBLEDELTA", "T64", "GORILLA":
 		codecType = name
 		// try parse delta level
 		typeLevel, err = p.tryParseCompressionLevel(p.Pos())
@@ -824,7 +826,7 @@ func (p *Parser) tryParseCompressionCodecs(pos Pos) (*CompressionCodec, error) {
 	var level *NumberLiteral
 	// TODO: check if the codec name is valid
 	switch strings.ToUpper(name.Name) {
-	case "ZSTD", "LZ4HC":
+	case "ZSTD", "LZ4HC", "LH4":
 		level, err = p.tryParseCompressionLevel(p.Pos())
 		if err != nil {
 			return nil, err

parser/testdata/ddl/create_table_with_codec_delta.sql

@@ -3,6 +3,9 @@ CREATE TABLE IF NOT EXISTS test_local
  `id` UInt64 CODEC(Delta, ZSTD(1)),
  `api_id` UInt64 CODEC(ZSTD(1)),
  `app_id` UInt64 CODEC(Delta(9), ZSTD(1)),
+ `device_id` UInt64 CODEC(DoubleDelta, ZSTD(1)),
+ `guage` Float64 CODEC(Gorilla, LZ4),
+ `value` UInt64 CODEC(T64, LZ4),
  `timestamp` DateTime64(9) CODEC(ZSTD(1)),
  INDEX timestamp_index(timestamp) TYPE minmax GRANULARITY 4
 )

parser/testdata/ddl/format/create_table_with_codec_delta.sql

@@ -4,6 +4,9 @@ CREATE TABLE IF NOT EXISTS test_local
  `id` UInt64 CODEC(Delta, ZSTD(1)),
  `api_id` UInt64 CODEC(ZSTD(1)),
  `app_id` UInt64 CODEC(Delta(9), ZSTD(1)),
+ `device_id` UInt64 CODEC(DoubleDelta, ZSTD(1)),
+ `guage` Float64 CODEC(Gorilla, LZ4),
+ `value` UInt64 CODEC(T64, LZ4),
  `timestamp` DateTime64(9) CODEC(ZSTD(1)),
  INDEX timestamp_index(timestamp) TYPE minmax GRANULARITY 4
 )
@@ -20,6 +23,9 @@ CREATE TABLE IF NOT EXISTS test_local
   `id` UInt64 CODEC(Delta, ZSTD(1)),
   `api_id` UInt64 CODEC(ZSTD(1)),
   `app_id` UInt64 CODEC(Delta(9), ZSTD(1)),
+  `device_id` UInt64 CODEC(DoubleDelta, ZSTD(1)),
+  `guage` Float64 CODEC(Gorilla, LZ4),
+  `value` UInt64 CODEC(T64, LZ4),
   `timestamp` DateTime64(9) CODEC(ZSTD(1)),
   INDEX timestamp_index(timestamp) TYPE minmax GRANULARITY 4
 )