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* File format description for CarbonData dictionary metadata file
namespace java org.apache.carbondata.format
struct ColumnDictionaryChunkMeta {
1: required i32 min_surrogate_key; //The least surrogate key in this dictionary, in most cases min will be 0, but after history data deletion, min can be non-zero
2: required i32 max_surrogate_key; //The Max surrogate key to be stored , so that next load can continue ID generation from this number.
3: required i64 start_offset; // The start offset of this column dictionary chunk in the dictionary file.
4: required i64 end_offset; // The end offset of this column dictionary chunk in the dictionary file.
5: required i32 chunk_count; // The count of total dictionary objects for one segment.
6: optional i64 segment_id; // the mapping of this dictionary chunk to the corresponding segment of the table, not useful in case of shared dimensions.