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D7 Parallel executor support. · postgrespro/postgres_cluster@d1b7c1f · GitHub
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robertmhaasrobertmhaas
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Parallel executor support.
This code provides infrastructure for a parallel leader to start up parallel workers to execute subtrees of the plan tree being executed in the master. User-supplied parameters from ParamListInfo are passed down, but PARAM_EXEC parameters are not. Various other constructs, such as initplans, subplans, and CTEs, are also not currently shared. Nevertheless, there's enough here to support a basic implementation of parallel query, and we can lift some of the current restrictions as needed. Amit Kapila and Robert Haas
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‎src/backend/executor/Makefile

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@@ -13,7 +13,8 @@ top_builddir = ../../..
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include $(top_builddir)/src/Makefile.global
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OBJS = execAmi.o execCurrent.o execGrouping.o execIndexing.o execJunk.o \
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execMain.o execProcnode.o execQual.o execScan.o execTuples.o \
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execMain.o execParallel.o execProcnode.o execQual.o \
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execScan.o execTuples.o \
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execUtils.o functions.o instrument.o nodeAppend.o nodeAgg.o \
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nodeBitmapAnd.o nodeBitmapOr.o \
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nodeBitmapHeapscan.o nodeBitmapIndexscan.o nodeCustom.o nodeHash.o \

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