Module tidb_query_datatype::codec::table[−][src]

Structs

RowColMeta	`RowColMeta` saves the column meta of the row.
RowColsDict	`RowColsDict` stores the row data and a map mapping column ID to its meta.

EXTRA_PARTITION_ID_COL_ID	ID for partition column, see https://github.com/pingcap/parser/pull/1010
ID_LEN
INDEX_PREFIX_SEP
INDEX_VALUE_COMMON_HANDLE_FLAG	Flag that indicate if the index value has common handle.
INDEX_VALUE_PARTITION_ID_FLAG	Flag that indicate if the index value has partition id.
INDEX_VALUE_RESTORED_DATA_FLAG	Flag that indicate if the index value has restored data.
INDEX_VALUE_VERSION_FLAG	Flag that indicate if the index values has the version information.
MAX_OLD_ENCODED_VALUE_LEN
PREFIX_LEN
RECORD_PREFIX_SEP
RECORD_ROW_KEY_LEN
SEP_LEN
TABLE_PREFIX
TABLE_PREFIX_KEY_LEN
TABLE_PREFIX_LEN

TableEncoder encodes the table record/index prefix.

check_index_key
check_key_type	`check_key_type` checks if the key is the type we want, `wanted_type` should be `table::RECORD_PREFIX_SEP` or `table::INDEX_PREFIX_SEP` .
check_record_key
check_table_ranges	Checks if the range is for table record or index.
cut_idx_key	`cut_idx_key` cuts the encoded index key into RowColsDict and handle .
cut_row	`cut_row` cuts the encoded row into (col_id,offset,length) and returns interested columns’ meta in RowColsDict
cut_row_v1	Cuts a non-empty row in row format v1.
cut_row_v2	Cuts a non-empty row in row format v2 and encodes into v1 format.
decode_col_value
decode_common_handle	`decode_common_handle` decodes key key and gets the common handle.
decode_index_key
decode_int_handle	`decode_int_handle` decodes the key and gets the int handle.
decode_row
decode_table_id	Decodes table ID from the key.
encode_column_key	`encode_column_key` encodes the table id, row handle and column id into a byte array.
encode_common_handle_for_test
encode_index_seek_key	`encode_index_seek_key` encodes an index value to byte array.
encode_row
encode_row_key	`encode_row_key` encodes the table id and record handle into a byte array.
extract_table_prefix	Extracts table prefix from table record or index.
flatten	`flatten` flattens the datum.
generate_index_data_for_test
unflatten	`unflatten` converts a raw datum to a column datum.