deprecate and remove group_var_int encoding
diff --git a/Encodings.md b/Encodings.md
index cf72854..602304e 100644
--- a/Encodings.md
+++ b/Encodings.md
@@ -16,45 +16,6 @@
For the byte array type, it encodes the length as a 4 byte little
endian, followed by the bytes.
-### GroupVarInt:
-
-Supported Types: INT32, INT64
-
-
-32-bit ints are encoded in groups of 4 with 1 leading bytes to encode the
-byte length of the following 4 ints.
-
-64-bit are encoded in groups of 5,
-with 2 leading bytes to encode the byte length of the 5 ints.
-
-For 32-bit ints, the leading byte contains 2 bits per int. Each length
-encoding specifies the number of bytes minus 1 for that int. For example
-a byte value of 0b00101101, indicates that:
-
- * the first int has 1 byte (0b00 + 1),
- * the second int has 3 bytes (0b10 + 1),
- * the third int has 4 bytes (0b11 + 1)
- * the 4th int has 2 bytes (0b01 + 1)
-
-In this case, the entire row group would be: 1 + (1 + 3 + 4 + 2) = 11 bytes.
-The bytes that follow the leading byte is just the int data encoded in little
-endian. With this example:
-
- * the first int starts at byte offset 1 with a max value of 0xFF,
- * the second int starts at byte offset 2 with a max value of 0xFFFFFF,
- * the third int starts at byte offset 5 with a max value of 0xFFFFFFFF, and
- * the 4th int starts at byte offset 9 with a max value of 0xFFFF.
-
-For 64-bit ints, the lengths of the 5 ints is encoded as 3 bits. Combined,
-this uses 15 bits and fits in 2 bytes. The msb of the two bytes is unused.
-Like the 32-bit case, after the length bytes, the data bytes follow.
-
-In the case where the data does not make a complete group, (e.g. 3 32-bit ints),
-a complete group should still be output with 0's filling in for the remainder.
-For example, if the input was (1,2,3,4,5): the resulting encoding should
-behave as if the input was (1,2,3,4,5,0,0,0) and the two groups should be
-encoded back to back.
-
### Delta Encoding
Supported Types: INT32, INT64
diff --git a/src/thrift/parquet.thrift b/src/thrift/parquet.thrift
index 2e93ede..efb1759 100644
--- a/src/thrift/parquet.thrift
+++ b/src/thrift/parquet.thrift
@@ -132,7 +132,8 @@
/** Group VarInt encoding for INT32/INT64.
*/
- GROUP_VAR_INT = 1;
+// GROUP_VAR_INT = 1;
+// This encoding is deprecated. It was never used
/** Dictionary encoding. The values in the dictionary are encoded in the
* plain type.
