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| author | Andres Freund <andres@anarazel.de> | 2018-03-22 11:45:07 -0700 |
|---|---|---|
| committer | Andres Freund <andres@anarazel.de> | 2018-03-22 11:51:58 -0700 |
| commit | cc415a56d09a8da7c919088036b6097b70f10791 (patch) | |
| tree | b99cb7e66041f8533dc63c4a689cbf3f03956957 /src/backend/nodes | |
| parent | 7ec0d80c0508eae35ac8e19d041f9ba1276de08e (diff) | |
| download | postgresql-cc415a56d09a8da7c919088036b6097b70f10791.tar.gz | |
Basic planner and executor integration for JIT.
This adds simple cost based plan time decision about whether JIT
should be performed. jit_above_cost, jit_optimize_above_cost are
compared with the total cost of a plan, and if the cost is above them
JIT is performed / optimization is performed respectively.
For that PlannedStmt and EState have a jitFlags (es_jit_flags) field
that stores information about what JIT operations should be performed.
EState now also has a new es_jit field, which can store a
JitContext. When there are no errors the context is released in
standard_ExecutorEnd().
It is likely that the default values for jit_[optimize_]above_cost
will need to be adapted further, but in my test these values seem to
work reasonably.
Author: Andres Freund, with feedback by Peter Eisentraut
Discussion: https://postgr.es/m/20170901064131.tazjxwus3k2w3ybh@alap3.anarazel.de
Diffstat (limited to 'src/backend/nodes')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 1 | ||||
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 1 | ||||
| -rw-r--r-- | src/backend/nodes/readfuncs.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index 3ad4da64aa..c7293a60d7 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -87,6 +87,7 @@ _copyPlannedStmt(const PlannedStmt *from) COPY_SCALAR_FIELD(transientPlan); COPY_SCALAR_FIELD(dependsOnRole); COPY_SCALAR_FIELD(parallelModeNeeded); + COPY_SCALAR_FIELD(jitFlags); COPY_NODE_FIELD(planTree); COPY_NODE_FIELD(rtable); COPY_NODE_FIELD(resultRelations); diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index fd80891954..f61ae03ac5 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -272,6 +272,7 @@ _outPlannedStmt(StringInfo str, const PlannedStmt *node) WRITE_BOOL_FIELD(transientPlan); WRITE_BOOL_FIELD(dependsOnRole); WRITE_BOOL_FIELD(parallelModeNeeded); + WRITE_BOOL_FIELD(jitFlags); WRITE_NODE_FIELD(planTree); WRITE_NODE_FIELD(rtable); WRITE_NODE_FIELD(resultRelations); diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c index 068db353d7..fd4586e73d 100644 --- a/src/backend/nodes/readfuncs.c +++ b/src/backend/nodes/readfuncs.c @@ -1475,6 +1475,7 @@ _readPlannedStmt(void) READ_BOOL_FIELD(transientPlan); READ_BOOL_FIELD(dependsOnRole); READ_BOOL_FIELD(parallelModeNeeded); + READ_BOOL_FIELD(jitFlags); READ_NODE_FIELD(planTree); READ_NODE_FIELD(rtable); READ_NODE_FIELD(resultRelations); |