diff options
| author | Robert Haas | 2017-03-08 17:05:43 +0000 |
|---|---|---|
| committer | Robert Haas | 2017-03-08 17:05:43 +0000 |
| commit | f35742ccb7aa53ee3ed8416bbb378b0c3eeb6bb9 (patch) | |
| tree | 66c88951dd3b1546159869072e8ff3e3b506568b /src/backend/nodes | |
| parent | 4eafdcc27608dfb8a3afa3155d6ae07f66179782 (diff) | |
Support parallel bitmap heap scans.
The index is scanned by a single process, but then all cooperating
processes can iterate jointly over the resulting set of heap blocks.
In the future, we might also want to support using a parallel bitmap
index scan to set up for a parallel bitmap heap scan, but that's a
job for another day.
Dilip Kumar, with some corrections and cosmetic changes by me. The
larger patch set of which this is a part has been reviewed and tested
by (at least) Andres Freund, Amit Khandekar, Tushar Ahuja, Rafia
Sabih, Haribabu Kommi, Thomas Munro, and me.
Discussion: http://postgr.es/m/CAFiTN-uc4=0WxRGfCzs-xfkMYcSEWUC-Fon6thkJGjkh9i=13A@mail.gmail.com
Diffstat (limited to 'src/backend/nodes')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 2 | ||||
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 2 | ||||
| -rw-r--r-- | src/backend/nodes/readfuncs.c | 2 |
3 files changed, 6 insertions, 0 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index b3eac06c50..ac8e50ef1d 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -331,6 +331,7 @@ _copyBitmapOr(const BitmapOr *from) /* * copy remainder of node */ + COPY_SCALAR_FIELD(isshared); COPY_NODE_FIELD(bitmapplans); return newnode; @@ -496,6 +497,7 @@ _copyBitmapIndexScan(const BitmapIndexScan *from) * copy remainder of node */ COPY_SCALAR_FIELD(indexid); + COPY_SCALAR_FIELD(isshared); COPY_NODE_FIELD(indexqual); COPY_NODE_FIELD(indexqualorig); diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index d4297d11b1..825a7b283a 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -441,6 +441,7 @@ _outBitmapOr(StringInfo str, const BitmapOr *node) _outPlanInfo(str, (const Plan *) node); + WRITE_BOOL_FIELD(isshared); WRITE_NODE_FIELD(bitmapplans); } @@ -520,6 +521,7 @@ _outBitmapIndexScan(StringInfo str, const BitmapIndexScan *node) _outScanInfo(str, (const Scan *) node); WRITE_OID_FIELD(indexid); + WRITE_BOOL_FIELD(isshared); WRITE_NODE_FIELD(indexqual); WRITE_NODE_FIELD(indexqualorig); } diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c index b02d9fa246..8f39d93a12 100644 --- a/src/backend/nodes/readfuncs.c +++ b/src/backend/nodes/readfuncs.c @@ -1633,6 +1633,7 @@ _readBitmapOr(void) ReadCommonPlan(&local_node->plan); + READ_BOOL_FIELD(isshared); READ_NODE_FIELD(bitmapplans); READ_DONE(); @@ -1744,6 +1745,7 @@ _readBitmapIndexScan(void) ReadCommonScan(&local_node->scan); READ_OID_FIELD(indexid); + READ_BOOL_FIELD(isshared); READ_NODE_FIELD(indexqual); READ_NODE_FIELD(indexqualorig); |