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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2014-01-24 19:08:52 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2014-01-24 19:10:10 +0200 |
| commit | d150ff57812ae01a2f78a55f33a46f9b7febf933 (patch) | |
| tree | fbc87b71c80badc907c04e2ac7c2a86ce64bae4c | |
| parent | a8f374849fe2e2fcd62bbba8be85ccf030c31683 (diff) | |
| download | postgresql-d150ff57812ae01a2f78a55f33a46f9b7febf933.tar.gz postgresql-d150ff57812ae01a2f78a55f33a46f9b7febf933.zip | |
Reset unused fields in GIN data leaf page footer.
The maxoff field is not used in the new, compressed page format. Let's
reset it when converting an old-format page to the new format. The code
won't care either way, but this makes it possible to use the field for
something else in the future.
| -rw-r--r-- | src/backend/access/gin/gindatapage.c | 5 | ||||
| -rw-r--r-- | src/backend/access/gin/ginxlog.c | 1 |
2 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/access/gin/gindatapage.c b/src/backend/access/gin/gindatapage.c index d65979b0e46..91934f0f900 100644 --- a/src/backend/access/gin/gindatapage.c +++ b/src/backend/access/gin/gindatapage.c @@ -817,7 +817,10 @@ dataPlaceToPageLeafRecompress(Buffer buf, disassembledLeaf *leaf, } Assert(newsize <= GinDataLeafMaxContentSize); GinDataLeafPageSetPostingListSize(page, newsize); - GinPageSetCompressed(page); /* in case it was in pre-9.4 format before */ + + /* Reset these in case the page was in pre-9.4 format before */ + GinPageSetCompressed(page); + GinPageGetOpaque(page)->maxoff = InvalidOffsetNumber; /* Put WAL data */ recompress_xlog.length = (uint16) newsize; diff --git a/src/backend/access/gin/ginxlog.c b/src/backend/access/gin/ginxlog.c index 9a978ce2bdb..3e86590ca0d 100644 --- a/src/backend/access/gin/ginxlog.c +++ b/src/backend/access/gin/ginxlog.c @@ -153,6 +153,7 @@ ginRedoRecompress(Page page, ginxlogRecompressDataLeaf *data) memcpy(segment, data->newdata, data->length - data->unmodifiedsize); GinDataLeafPageSetPostingListSize(page, data->length); GinPageSetCompressed(page); + GinPageGetOpaque(page)->maxoff = InvalidOffsetNumber; } static void |