[IOTDB-1335] Unnecessary buffer when no compression is used

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: Core/Engine
• Labels: compression
• Assignee: Unassigned
• Reporter: Tian Jiang
• Created: 28/Apr/21 03:01
• Updated: 28/Apr/21 03:01

Description

As shown in the figure, a buffer for uncompression is created even if NO_COMPRESSOR is used, which incurs unnecessary memory allocation and copy.

The solution is to skip the decompression process completely when NO_COMPRESSOR is used. Similar problems may be detected during the write process and should be examined with care.