diff options
| author | Stephen Frost | 2019-04-02 16:35:32 +0000 |
|---|---|---|
| committer | Stephen Frost | 2019-04-02 16:35:32 +0000 |
| commit | 4d0e994eed83c845a05da6e9a417b4efec67efaf (patch) | |
| tree | 448059e04754de5146098545e7e414a9612c7348 /src/include/common | |
| parent | d50d172e517c1d2aabff3ceb3ad3113b909c5017 (diff) | |
Add support for partial TOAST decompression
When asked for a slice of a TOAST entry, decompress enough to return the
slice instead of decompressing the entire object.
For use cases where the slice is at, or near, the beginning of the entry,
this avoids a lot of unnecessary decompression work.
This changes the signature of pglz_decompress() by adding a boolean to
indicate if it's ok for the call to finish before consuming all of the
source or destination buffers.
Author: Paul Ramsey
Reviewed-By: Rafia Sabih, Darafei Praliaskouski, Regina Obe
Discussion: https://postgr.es/m/CACowWR07EDm7Y4m2kbhN_jnys%3DBBf9A6768RyQdKm_%3DNpkcaWg%40mail.gmail.com
Diffstat (limited to 'src/include/common')
| -rw-r--r-- | src/include/common/pg_lzcompress.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/common/pg_lzcompress.h b/src/include/common/pg_lzcompress.h index d4b2e8a53c6..279b66ec7c3 100644 --- a/src/include/common/pg_lzcompress.h +++ b/src/include/common/pg_lzcompress.h @@ -86,6 +86,6 @@ extern const PGLZ_Strategy *const PGLZ_strategy_always; extern int32 pglz_compress(const char *source, int32 slen, char *dest, const PGLZ_Strategy *strategy); extern int32 pglz_decompress(const char *source, int32 slen, char *dest, - int32 rawsize); + int32 rawsize, bool check_complete); #endif /* _PG_LZCOMPRESS_H_ */ |