mirror of
https://github.com/postgres/postgres.git
synced 2025-07-08 11:42:09 +03:00
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
This commit is contained in:
@ -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);
|
||||
|
Reference in New Issue
Block a user