This is to be used only in the case when one cannot use c_ptr(). The cases are: - When one initializes String with an external buffer and leng

Copies a string. @param dst destination buffer, will be NUL padded. @param dst_size size of dst buffer, must be > 0 @param src

Start a mini-transaction. */

Returns true if this is constant (during query execution, i.e. its value will not change until next fix_fields) and its value is known. */

@return whether the buffer is empty */

Clear the current error, if any. We do not clear is_fatal_error or is_fatal_sub_stmt_error since we assume this is never called if the fatal e

Fast, not thread safe, bitmap functions */ The following functions must be compatible with create_last_bit_mask()! */

@return the ROW_FORMAT=COMPRESSED physical size, in bytes @retval 0 if not compressed */

@brief Prints to a trace file if it is not NULL */

Reset the state at end @return the query graph parent */

result_type() of an item specifies how the value should be returned */

... while cmp_type() specifies how it should be compared */

Get a single variable from the cache. Get the first element in the cache by default. */

pack_length() returns size (in bytes) used to store field data in memory (i.e. it returns the maximum size of the field in a row of the table,

Returns the number of unique elements. */

The cached_table_flags is set at ha_open and ha_external_lock */

/ Program for sub-allocating and copying a string in a storage area. */ /

Appends src to dst and ensures dst is a NUL terminated C string. @retval 1 if the src string was truncated due to too small size of dst. @retval

@return start of the log records */

Add the block to the end of the list*/

Set this index after a given position. @param other a position */

@return index */

Finds the next active server with a maximum required link status @param link_statuses The statuses of servers @param conn_link_idx The array of

Check if memo contains the given item. @param object object to search @param flags specify types of object (can be ORred) of MTR_MEMO_PAGE_S_FIX